WO2023241600A1

WO2023241600A1 - Bandwidth adjustment method and related apparatus

Info

Publication number: WO2023241600A1
Application number: PCT/CN2023/100076
Authority: WO
Inventors: 刘尚靖; 林刚; 王自强
Original assignee: 华为技术有限公司
Priority date: 2022-06-16
Filing date: 2023-06-14
Publication date: 2023-12-21
Also published as: CN117294599A

Abstract

Disclosed in the embodiments of the present application are a bandwidth adjustment method and a related apparatus. The method is applied to a first network, wherein the first network comprises: at least one aggregation node and at least one edge node. The method comprises: a management node acquiring the bandwidth load of a first node, wherein the first node is a node in a first network; and when the bandwidth load of the first node is greater than or equal to a first threshold, the management node re-configuring a configuration bandwidth of the first node according to the bandwidth load of a sibling node, wherein in the first network, an upper-level node of the sibling node and an upper-level node of the first node are both a second node. By means of the method, message loss caused by a relatively high bandwidth load of a first node is prevented, and a service time delay and a packet loss rate are reduced. By means of dynamically adjusting a configuration bandwidth of each node in a first network, the probability of a packet loss of an edge node that is caused by a burst service is reduced, and a link utilization rate is improved. The requirements for a cache space of an aggregation node are reduced.

Description

Bandwidth adjustment method and related device

This application claims priority to the Chinese patent application submitted to the State Intellectual Property Office of China on June 16, 2022, with the application number CN202210681426.2 and the invention title "A bandwidth adjustment method and related devices", the entire content of which is incorporated by reference. incorporated in this application.

Technical field

The present application relates to the field of communication technology, and in particular, to a bandwidth adjustment method and related devices.

Background technique

The nodes included in the campus switching network can be divided according to their functions: edge nodes, such as base stations and other network equipment; aggregation nodes, such as switches or routers; management nodes, such as wireless autonomous driving engines (MBB automation engine, MAE) or Telecom converged cloud (telco converged cloud, TCC), etc. Among them, the aggregation node is used to forward the service data of the edge node, and the management node is used to manage the above-mentioned edge nodes and aggregation nodes.

Due to unexpected business or network planning issues, the following scenario often occurs: the sum of the port bandwidths of downstream nodes is greater than the bandwidth of upstream nodes. For ease of understanding, the edge node and the upstream convergence node of the edge node are taken as an example. For example, edge node 1 and edge node 2 are connected to convergence node 1, and convergence node 1 is responsible for data forwarding of edge node 1 and edge node 2. The maximum sending bandwidth of edge node 1 is 25 gigabit per second (Gbps or G), the maximum sending bandwidth of edge node 2 is 25G, and the egress bandwidth of aggregation node 1 is 40G. When edge node 1 and edge node 2 send packets according to their maximum sending bandwidth, the aggregate traffic of edge node 1 and edge node 2 at convergence node 1 exceeds the egress bandwidth of convergence node 1, causing some packets to be lost and affecting service delays. and improve packet loss rate.

Contents of the invention

In a first aspect, an embodiment of the present application proposes a bandwidth adjustment method, which method is applied to a first network. The first network includes: at least one convergence node and at least one edge node, wherein the convergence node is used for forwarding The data of the edge node includes:

The management node obtains the bandwidth load of the first node, which indicates the ratio of currently used bandwidth to configured bandwidth. The first node is any one of the aggregation nodes or any one of the edge nodes included in the first network. ; When the bandwidth load of the first node is greater than or equal to the first threshold, the management node reconfigures the configured bandwidth of the first node according to the bandwidth load of the peer node in the first network. The upper-level node of the node is the same as the upper-level node of the first node, which is the second node.

The aggregation node in the embodiment of this application can be a physical device such as a router, a switch or a gateway, or a virtual device that supports route publishing and packet forwarding. The embodiment of this application does not limit this.

The edge node in the embodiment of the present application may be a terminal device, a network device, or a customer premise equipment (CPE), etc. The embodiment of the present application does not limit the edge node. For example: the edge node in the embodiment of the present application can also be an edge computing device, where the edge computing device refers to a device used to perform multi-access edge computing (Multi-access Edge Computing) or mobile edge computing (mobile edge computing). device of. Exemplary edge computing devices include but are not limited to: mobile phones, Internet of Things devices, smart home devices, Industrial control equipment, vehicle equipment or drone equipment, etc.

In the embodiment of this application, when the bandwidth load of the first node is high, the management node reconfigures the configured bandwidth of the first node according to the bandwidth load of the first node and the bandwidth load of the peer node. This avoids packet loss on the first node due to high bandwidth load, reduces service delay and packet loss rate. The management node dynamically adjusts the configured bandwidth of each node in the first network to reduce the probability of packet loss at the edge node due to sudden traffic and improve link utilization. Reduce cache space requirements on sink nodes. In addition, the load of each aggregation node in the first network can also be optimized to achieve load balancing.

In a possible implementation of the first aspect, the management node reconfigures the configured bandwidth of the first node according to the bandwidth load of the peer node, including:

When the bandwidth load of at least one node among the peer nodes is less than the first threshold, the management node determines the remaining bandwidth of the low-load node, which belongs to the peer node, and the low-load node The bandwidth load is less than the first threshold, and the remaining bandwidth indicates the allocated and unused bandwidth of the current node; the management node reconfigures the configuration of the first node according to the sum of the remaining bandwidths of the low-load nodes. Bandwidth, the configured bandwidth of the first node after reconfiguration is greater than the configured bandwidth of the first node before reconfiguration.

Specifically, when the bandwidth load of the first node is greater than or equal to the first threshold, the management node considers the first node to be a high-load node. In this embodiment of the present application, nodes whose bandwidth load is greater than or equal to the first threshold are classified as high-load nodes, and nodes whose bandwidth load is lower than the first threshold are classified as low-load nodes. The management node then searches for the existence of a low-load node among the first node's sibling nodes. In other words, the management node searches whether there is at least one node among peer nodes whose bandwidth load is less than the first threshold. If it exists, the node whose bandwidth load is less than the first threshold is classified as a low-load node. The management node determines the remaining bandwidth of low-load nodes among peer nodes. The remaining bandwidth indicates the allocated and unused bandwidth of the current node. Then, the management node reconfigures the configured bandwidth of the first node based on the sum of the remaining bandwidths of the low-load nodes. The management node allocates the remaining bandwidth of low-load nodes to high-load nodes, so that the configured bandwidth of high-load nodes increases and the configured bandwidth of low-load nodes decreases. For example: when the low-load node includes node A and node B, the sum of the remaining bandwidth of the low-load node is the sum of the remaining bandwidth of node A and the remaining bandwidth of node B.

In a possible implementation of the first aspect, the management node reconfigures the configured bandwidth of the first node according to the remaining bandwidth of the low-load node, including:

The management node obtains the required bandwidth of the first node, and the required bandwidth indicates that the node requests the bandwidth allocated by the management node; the management node obtains all high-load nodes among the peer node and the first node the required bandwidth, and determine the sum of the required bandwidths of the high-load nodes, where the bandwidth load of the high-load nodes is greater than or equal to the first threshold; the management node determines a first bandwidth ratio, and the first The bandwidth ratio is the ratio of the required bandwidth of the first node to the sum of the required bandwidth of the high-load node; the management node re-calculates the first bandwidth ratio and the sum of the remaining bandwidth of the low-load node. Configure the configuration bandwidth of the first node.

The details are as follows: the management node obtains the required bandwidth of the first node, and the required bandwidth indicates that the node requests the bandwidth allocated by the management node.

Secondly, the management node obtains the required bandwidth of all high-load nodes among the first node and peer nodes, and then determines the The sum of the required bandwidths of high-load nodes, and the bandwidth load of high-load nodes is greater than or equal to the first threshold. For example, the next-level nodes of the second node include: the first node (node A), node B, and node C. Among them, node A is a high-load node, node B is a high-load node, and node C is a low-load node. Then the sum of the required bandwidth of high-load nodes is: the required bandwidth of node A plus the required bandwidth of node B.

Thirdly, the management node determines a first bandwidth ratio, which is the ratio of the sum of the required bandwidth of the first node and the required bandwidth of the high-load node. For example: first bandwidth ratio = required bandwidth of node A/(required bandwidth of node A + required bandwidth of node B).

Again, the management node reconfigures the configured bandwidth of the first node according to the sum of the first bandwidth ratio and the remaining bandwidth of the low-load node. Specifically, the configuration bandwidth of the low-load node is reduced, and part of the reduced bandwidth is allocated to the first node, so that the configuration bandwidth of the first node is increased.

In a possible implementation manner of the first aspect, the management node reconfigures the configured bandwidth of the low-load node according to the sum of remaining bandwidths of the low-load node.

In a possible implementation of the first aspect, the management node reconfigures the configured bandwidth of the first node according to the first bandwidth ratio and the remaining bandwidth of the low-load node, including:

The management node reconfigures the configured bandwidth of the first node according to the first bandwidth ratio, the remaining bandwidth of the low-load node and the adjustment step, wherein the reconfigured configured bandwidth of the first node is less than the product of the first bandwidth ratio and the remaining bandwidth of the low-load node.

Specifically, the configured bandwidth of the first node after reconfiguration = first bandwidth ratio * sum of remaining bandwidths of low-load nodes * adjustment step. Adjust the step to a decimal number less than 1 and greater than 0. By setting the adjustment step, you can prevent the configuration bandwidth of the remaining low-load nodes from being reduced too much, causing the low-load nodes to become high-load nodes under low business pressure, affecting the normal operation of the business.

The management node obtains the required bandwidth of the first node and the required bandwidth of the second node, and the required bandwidth indicates the bandwidth requested by the node; when the bandwidth load of all nodes in the peer node is greater than or equal to When the first threshold is reached, the management node obtains the required bandwidth of each of the peer node and the first node and the remaining bandwidth of the second node; the management node determines a second bandwidth ratio, so The second bandwidth ratio is the ratio of the required bandwidth of the first node to the sum of the required bandwidth of the peer node and each of the first nodes; the management node calculates the second bandwidth ratio and The required bandwidth of the second node, reconfiguring the configured bandwidth of the first node, where the second node is the upper-level node of the first node, the configuration of the first node after reconfiguration The bandwidth is equal to the product of the second bandwidth ratio and the required bandwidth of the second node.

Specifically, first, the management node obtains the required bandwidth of the first node, the required bandwidth of the peer node (that is, the peer node of the first node) and the required bandwidth of the second node. The remaining bandwidth indicates that the current node has been allocated and unused. bandwidth.

Then, the management node determines a second bandwidth ratio, and the second bandwidth ratio is the ratio of the sum of the required bandwidth of the first node and the required bandwidth of the peer node. Then, the management node reconfigures the configured bandwidth of the first node according to the second bandwidth ratio and the remaining bandwidth of the second node, where the reconfigured configured bandwidth of the first node is equal to the second bandwidth ratio and the required bandwidth of the second node product of .

Exemplarily, the next-level nodes of the second node include: the first node (node A), node B, and node C, where node A is a high-load node, node B is a high-load node, and node C is a high-load node. .

Then the sum of the required bandwidth of high-load nodes is: the required bandwidth of node A plus the required bandwidth of node B.

The sum of the required bandwidth of each node in the peer node and the first node is: the required bandwidth of node A + the required bandwidth of node B + the required bandwidth of node C.

The second bandwidth ratio is: node A's required bandwidth/(node A's required bandwidth+node B's required bandwidth+node C's required bandwidth).

The configured bandwidth of the first node after reconfiguration is: the remaining bandwidth of the second node * the required bandwidth of node A / (the required bandwidth of node A + the required bandwidth of node B + the required bandwidth of node C).

In a possible implementation of the first aspect, before the management node obtains the bandwidth load of the first node, the method further includes:

The management node obtains the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node. The second node is a superior level of the first node. Node, the communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the maximum supported bandwidth of the node, wherein the protection bandwidth indicates the minimum required bandwidth of the node, and the required bandwidth Indicate the allocated bandwidth requested by the node; the management node reconfigures the first node according to the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node. Configure bandwidth.

In a possible implementation manner, the management node determines each node in the first network and the connection relationship of each node according to the network topology information. Further, the management node determines the communication capability information of each node in the first network based on the network topology information.

In another possible implementation, the management node determines the connection relationship of each node in the first network and the communication capability information of each node in the first network through a bandwidth detection method (or an available bandwidth detection method).

Regarding communication capability information, in the embodiment of the present application, the communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the maximum supported bandwidth of the node, where the protection bandwidth indicates the minimum required bandwidth of the node. Bandwidth, the required bandwidth indicates the bandwidth requested by the node to be allocated. For example, the communication capability information of convergence node B includes: convergence node B's protection bandwidth: 5G; convergence node B's required bandwidth: 30G; convergence node B's maximum supported bandwidth: uplink 40G, downlink 40G.

It can be understood that the communication capability information may also include: the storage space size of the node, which is used to cache the data sent and received, the available storage space size of the node, or the available computing resources of the node, etc., which are not limited in the embodiments of the present application. .

In a possible implementation of the first aspect, the communication capability information of the second node includes: the second node The configured bandwidth of the node;

When the sum of the required bandwidth of the first node and the required bandwidth of the peer node is less than or equal to the configured bandwidth of the second node, the reconfigured configured bandwidth of the first node is equal to the first node the required bandwidth,

Or, when the sum of the required bandwidth of the first node and the required bandwidth of the peer node is greater than the configured bandwidth of the second node, the reconfigured configured bandwidth of the first node is equal to the sum of the third bandwidth ratio The product of the configured bandwidth of the second node, the third bandwidth ratio is the ratio of the required bandwidth of the first node to the sum of the required bandwidth of the first node and the required bandwidth of the peer node.

For example, the required bandwidth of the first node is 10G, the required bandwidth of the peer node is 40G, and the configured bandwidth of the second node is 20G. Since the sum of the required bandwidth of the first node and the required bandwidth of the peer node (the peer node of the first node) is greater than the configured bandwidth of the second node, the second node does not have sufficient bandwidth resources to provide to the first node and Used by peer nodes. The configured bandwidth of the first node needs to be allocated according to the ratio between the required bandwidth of the first node and the required bandwidth of the peer node. At this time, the third bandwidth ratio=10/(10+40)=0.2, and the configured bandwidth of the first node is: 0.2*20=4G. Further, the configured bandwidth of the peer node of the first node is determined according to a similar method. For example: the configured bandwidth of the peer node is: 40/(10+40)*20=0.8*20=16G.

In a possible implementation of the first aspect, the method further includes: the management node reconfiguring the protection bandwidth to the first node. For example: the management node sends second configuration information to the first node, and the second configuration information is used to reconfigure the protection bandwidth of the first node. The protection bandwidth indicates the minimum required bandwidth of the node. By configuring the protection bandwidth, the basic service capabilities of the first node are guaranteed.

In a possible implementation of the first aspect, the communication capability information of the second node includes: a protection bandwidth of the second node;

When the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node is less than or equal to the protection bandwidth of the second node, the reconfigured protection bandwidth of the first node is equal to the first node the protection bandwidth,

Or, when the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node is greater than the protection bandwidth of the second node, the reconfigured protection bandwidth of the first node is equal to the fourth bandwidth ratio sum The product of the protection bandwidth of the second node, wherein the fourth bandwidth ratio is the ratio of the protection bandwidth of the first node to the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node .

For example, the protection bandwidth of the first node is 5G, the protection bandwidth of the peer node is 10G, and the configuration bandwidth of the second node is 9G. Since the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node (the peer node of the first node) is greater than the protection bandwidth of the second node, the second node does not have sufficient protection bandwidth resources to provide to the first node. Used with peer nodes. The protection bandwidth of the first node needs to be reconfigured according to the ratio between the protection bandwidth of the first node and the protection bandwidth of the peer node. At this time, the fourth bandwidth ratio=5/(5+10)=1/3, and the protection bandwidth of the first node is: 1/3*9=3G. Further, the protection bandwidth of the peer node of the first node is reconfigured according to a similar method. For example: the configured bandwidth of the peer node is: 10/(5+10)=2/3*9=6G.

In a possible implementation of the first aspect, the method further includes: the management node configuring the first threshold, the bandwidth adjustment period and/or the reporting period to the first node, wherein the reporting period indicates the A period in which the first node reports a bandwidth load of the first node, and the bandwidth adjustment period indicates a period in which the first node adjusts the configured bandwidth of the first node. For example: the management node sends third configuration information to the first node, and the third configuration information includes one or more of the following information: the first threshold, the bandwidth adjustment period and/or the reporting period.

Specifically: the first threshold refers to the threshold of the configured bandwidth of the reconfigured node. For example: when the bandwidth load of the first node is greater than or equal to the first threshold, the configured bandwidth of the first node is reconfigured.

In a possible implementation, the management node can set different first thresholds for nodes with different priorities. For example, a node with a higher priority may be a node with a higher SLA level or a node with higher requirements for service reliability. In this case, the first threshold set for the node with a higher priority is lower. Nodes with higher priority can first trigger the reconfiguration of the configured bandwidth to improve service reliability.

The reporting period indicates a period in which the first node reports the bandwidth load of the first node. According to the reporting period, the first node periodically reports the bandwidth load of the first node, where the bandwidth load indicates the ratio of the currently used bandwidth of the node to the configured bandwidth of the node. For example, the reporting period may be 15 seconds.

The reporting cycle can be configured according to the service level agreement (Service-level agreement, SLA) requirements of the business. For example, if the SLA level of service A is higher, the management node configures reporting period A for the nodes related to service A. The reporting interval of the bandwidth load indicated by the reporting period A is shorter. If the SLA level of service B is lower, the management node configures a reporting period B for the nodes related to service B. The reporting interval of the bandwidth load indicated by the reporting period B is longer.

In a possible implementation manner, the management node may also configure a threshold that triggers reporting of bandwidth load to the first node. For example, the management node configures a second threshold to the first node. When the bandwidth load of the first node is greater than or equal to the second threshold, the first node reports its own bandwidth load to the management node.

In a possible implementation of the first aspect, when the first node is the edge node, the second node belongs to the server of the first network or the convergence node;

Or, when the first node is the sink node, the second node belongs to the server of the first network or other sink nodes.

In a possible implementation of the first aspect, the management node is deployed at any one or more of the edge nodes in the first network, and/or at any one or more of the convergence nodes.

In the second aspect, embodiments of the present application propose a bandwidth adjustment method, which method is applied to a first network. The first network includes: at least one convergence node and at least one edge node, wherein the convergence node is used for forwarding The data of the edge node includes:

The first node reports the bandwidth load of the first node to the management node. The bandwidth load indicates the ratio of currently used bandwidth to configured bandwidth. The first node is any one of the aggregation nodes included in the first network or any of the edge nodes;

When the bandwidth load of the first node is greater than or equal to the first threshold, the first node receives the first configuration information of the management node;

The first node reconfigures the configuration bandwidth of the first node according to the first configuration information, wherein the reconfigured configuration bandwidth of the first node is determined according to the bandwidth load of the peer node, and the first network The upper-level node of the same-level node is the same as the upper-level node of the first node, which is the second node.

The edge node in the embodiment of this application may be a terminal device, a network device, or a customer premise equipment (CPE), etc. The embodiment of this application does not limit the edge node. For example: the edge node in the embodiment of this application can also be an edge computing device, where the edge computing device refers to a device used to perform multi-access edge computing (Multi-access Edge Computing) or mobile edge computing (mobile edge computing) device of. Examples of edge computing devices include but are not limited to: mobile phones, Internet of Things devices, smart home devices, industrial control devices, vehicle devices or drone devices, etc.

A possible implementation of the second aspect also includes:

The first node sends the communication capability information of the first node to the management node. The communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the maximum support of the node. Bandwidth, wherein the protection bandwidth indicates the minimum required bandwidth of the node, and the required bandwidth indicates the bandwidth requested by the node to be allocated.

In a possible implementation of the second aspect, the method further includes: the first node receiving second configuration information from the management node; and the first node reconfiguring the protection bandwidth according to the second configuration information.

In a possible implementation of the second aspect, the method further includes: the first node receiving third configuration information from the management node, where the third configuration information includes one or more of the following information: A first threshold, a bandwidth adjustment period and/or a reporting period, wherein the reporting period indicates a period in which the first node reports the bandwidth load of the first node, and the bandwidth adjustment period indicates that the first node adjusts the bandwidth load of the first node. Describes the period for configuring bandwidth of the first node.

In the third aspect, the embodiment of the present application proposes a communication device, which is used as a management node. The communication device includes:

A transceiver module configured to obtain the bandwidth load of a first node, where the bandwidth load indicates the ratio of currently used bandwidth to configured bandwidth. The first node is any one of the convergence nodes or any one of the first nodes included in the first network. The edge node;

A processing module configured to reconfigure the configured bandwidth of the first node according to the bandwidth load of the peer node when the bandwidth load of the first node is greater than or equal to the first threshold. The peer node in the first network The upper-level node of the node is the same as the upper-level node of the first node, which is the second node.

In a possible implementation, the processing module is specifically configured to: when at least one node among the peer nodes When the bandwidth load of the low-load node is less than the first threshold, the remaining bandwidth of the low-load node is determined. The low-load node belongs to the peer node. The bandwidth load of the low-load node is less than the first threshold. The remaining bandwidth is Indicates the allocated and unused bandwidth of the current node;

The management node reconfigures the configured bandwidth of the first node according to the sum of the remaining bandwidths of the low-load nodes, and the configured bandwidth of the first node after reconfiguration is greater than that of the first node before reconfiguration. Configure bandwidth.

In a possible implementation, the transceiver module is specifically configured to obtain the required bandwidth of the first node, and the required bandwidth indicates that the node requests the bandwidth allocated by the management node;

The transceiver module is specifically configured to obtain the required bandwidth of all high-load nodes among the peer nodes and the first node, and determine the sum of the required bandwidths of the high-load nodes, where the high-load node The bandwidth load is greater than or equal to the first threshold;

The processing module is specifically configured to determine a first bandwidth ratio, which is the ratio of the sum of the required bandwidth of the first node and the required bandwidth of the high-load node;

The processing module is specifically configured to reconfigure the configured bandwidth of the first node according to the sum of the first bandwidth ratio and the remaining bandwidth of the low-load node.

In a possible implementation, the processing module is further configured to reconfigure the configured bandwidth of the low-load node according to the sum of remaining bandwidths of the low-load node.

In a possible implementation, the processing module is specifically configured to reconfigure the configured bandwidth of the first node according to the first bandwidth ratio, the remaining bandwidth of the low-load node and the adjustment step, where , the configured bandwidth of the first node after reconfiguration is less than the product of the first bandwidth ratio and the remaining bandwidth of the low-load node.

In a possible implementation, the transceiver module is specifically configured to obtain the required bandwidth of the first node and the required bandwidth of the second node, where the required bandwidth indicates the bandwidth requested by the node to be allocated;

The transceiver module is specifically configured to obtain the required bandwidth sum of each node among the peer nodes and the first node when the bandwidth load of all nodes among the peers is greater than or equal to the first threshold. The remaining bandwidth of the second node;

The processing module is specifically configured for the management node to determine a second bandwidth ratio. The second bandwidth ratio is the required bandwidth of the first node and the bandwidth of each node among the peer node and the first node. The ratio of the sum of required bandwidths;

The processing module is specifically configured to reconfigure the configured bandwidth of the first node according to the second bandwidth ratio and the required bandwidth of the second node, where the second node is the bandwidth of the first node. For an upper-level node, the configured bandwidth of the first node after reconfiguration is equal to the product of the second bandwidth ratio and the required bandwidth of the second node.

In a possible implementation, the transceiver module is also used to obtain the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node. The second node is the upper-level node of the first node,

The communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the maximum supported bandwidth of the node, wherein the protection bandwidth indicates the minimum required bandwidth of the node, and the required bandwidth indicates the node's minimum required bandwidth. Request allocated bandwidth;

The transceiver module is further configured to configure the configuration bandwidth of the first node according to the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node.

In a possible implementation, the communication capability information of the second node includes: the configured bandwidth of the second node;

When the sum of the required bandwidth of the first node and the required bandwidth of the peer node is less than or equal to the configured bandwidth of the second node, the configured bandwidth of the first node is equal to the required bandwidth of the first node ,

Or, when the sum of the required bandwidth of the first node and the required bandwidth of the peer node is greater than the configured bandwidth of the second node, the configured bandwidth of the first node is equal to the third bandwidth ratio and the third bandwidth ratio. The product of the configured bandwidth of the two nodes, the third bandwidth ratio is the ratio of the required bandwidth of the first node to the sum of the required bandwidth of the first node and the required bandwidth of the peer node.

In a possible implementation manner, the transceiver module is also configured to reconfigure the protection bandwidth to the first node.

In a possible implementation, the communication capability information of the second node includes: the protection bandwidth of the second node;

In a possible implementation, the processing module is further configured to determine the communication capability information of the second node, the communication capability information of the first node, and the communication capability of the peer node according to the network topology information. Information, the network topology information is obtained by the management node through bandwidth detection.

In a possible implementation, the transceiver module is further configured to configure the first threshold, bandwidth adjustment period and/or reporting period to the first node, wherein,

The reporting period indicates a period in which the first node reports the bandwidth load of the first node,

The bandwidth adjustment period indicates a period in which the first node adjusts the configured bandwidth of the first node.

In a possible implementation, when the first node is the edge node, the second node belongs to the server of the first network or the aggregation node;

In a possible implementation, the management node is deployed at any one or more of the edge nodes in the first network, and/or at any one or more of the convergence nodes.

In the fourth aspect, an embodiment of the present application proposes a communication device, which is used as a first node. The communication device includes:

A transceiver module configured to report the bandwidth load of the first node to the management node, where the bandwidth load indicates the ratio of currently used bandwidth to configured bandwidth. The first node is any one of the aggregation nodes included in the first network. node or any of the edge nodes;

The transceiver module is also configured to: when the bandwidth load of the first node is greater than or equal to the first threshold, the first node receives Receive the first configuration information of the management node;

A processing module configured to reconfigure the configuration bandwidth of the first node according to the first configuration information, wherein the reconfigured configuration bandwidth of the first node is determined according to the bandwidth load of the peer node, and the first network The upper-level node of the same-level node is the same as the upper-level node of the first node, which is the second node.

In one possible implementation,

The transceiver module is also configured to send communication capability information of the first node to the management node. The communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the maximum bandwidth of the node. Support bandwidth, wherein the protection bandwidth indicates the minimum required bandwidth of the node, and the required bandwidth indicates the bandwidth requested by the node to be allocated.

In one possible implementation,

The transceiver module is also configured to receive second configuration information from the management node; the first node reconfigures the protection bandwidth according to the second configuration information.

In one possible implementation,

The transceiver module is also configured to receive third configuration information from the management node, where the third configuration information includes one or more of the following information: the first threshold, the bandwidth adjustment period and/or the reporting period, wherein, The reporting period indicates a period in which the first node reports the bandwidth load of the first node, and the bandwidth adjustment period indicates a period in which the first node adjusts the configured bandwidth of the first node.

In a fifth aspect, embodiments of the present application propose a communication device, which is used as a management node. The communication device includes: a memory and a processor, wherein the memory includes instructions; and the processor is configured to perform any of the possible tasks in the first aspect. Method to realize.

In a possible implementation, an exemplary processor is configured to obtain the bandwidth load of the first node, the bandwidth load indicating the ratio of the currently used bandwidth and the configured bandwidth, and the first node is the first node. Any one of the convergence nodes or any one of the edge nodes included in the network;

The processor is also configured to reconfigure the configured bandwidth of the first node according to the bandwidth load of the peer node when the bandwidth load of the first node is greater than or equal to the first threshold. The peer node in the first network The upper-level node of the first-level node is the same as the upper-level node of the first node, which is the second node.

In a possible implementation, the processor is specifically configured to determine the remaining bandwidth of a low-load node when the bandwidth load of at least one node among the peer nodes is less than the first threshold. The node belongs to the peer node, the bandwidth load of the low-load node is less than the first threshold, and the remaining bandwidth indicates the allocated and unused bandwidth of the current node;

In a possible implementation, the processor is specifically configured to obtain the required bandwidth of the first node, and the required bandwidth indicates that the node requests the bandwidth allocated by the management node;

The processor is specifically configured to obtain the required bandwidth of all high-load nodes among the peer node and the first node, and determine the sum of the required bandwidths of the high-load nodes, wherein Bandwidth load is greater than or equal to at the first threshold;

The processor is specifically configured to determine a first bandwidth ratio, where the first bandwidth ratio is the ratio of the sum of the required bandwidth of the first node and the sum of the required bandwidth of the high-load node;

The processor is specifically configured to reconfigure the configured bandwidth of the first node according to the sum of the first bandwidth ratio and the remaining bandwidth of the low-load node.

In a possible implementation, the processor is further configured to reconfigure the configured bandwidth of the low-load node according to the sum of remaining bandwidths of the low-load node.

In a possible implementation, the processor is specifically configured to reconfigure the configured bandwidth of the first node according to the first bandwidth ratio, the remaining bandwidth of the low-load node and the adjustment step, wherein , the configured bandwidth of the first node after reconfiguration is less than the product of the first bandwidth ratio and the remaining bandwidth of the low-load node.

In a possible implementation, the processor is specifically configured to obtain the required bandwidth of the first node and the required bandwidth of the second node, where the required bandwidth indicates the bandwidth requested by the node to be allocated;

The processor is specifically configured to obtain the sum of required bandwidths of each of the peer nodes and the first node when the bandwidth load of all nodes among the peer nodes is greater than or equal to the first threshold. The remaining bandwidth of the second node;

The processor is specifically configured for the management node to determine a second bandwidth ratio. The second bandwidth ratio is the required bandwidth of the first node and the bandwidth of each node among the peer node and the first node. The ratio of the sum of required bandwidths;

The processor is specifically configured to reconfigure the configured bandwidth of the first node according to the second bandwidth ratio and the required bandwidth of the second node, where the second node is the bandwidth of the first node. For an upper-level node, the configured bandwidth of the first node after reconfiguration is equal to the product of the second bandwidth ratio and the required bandwidth of the second node.

In a possible implementation, the processor is further configured to obtain the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node, and the The second node is the upper-level node of the first node,

The processor is further configured to configure the configuration bandwidth of the first node according to the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node.

In a possible implementation, the processor is further configured to reconfigure the protection bandwidth to the first node.

In a possible implementation, the processor is further configured to determine the communication capability information of the second node, the communication capability information of the first node, and the communication capability of the peer node according to the network topology information. Information, the network topology information is obtained by the management node through bandwidth detection.

In a possible implementation, the processor is further configured to configure the first threshold, bandwidth adjustment period and/or reporting period to the first node, wherein,

In a sixth aspect, an embodiment of the present application proposes a communication device, which is used as a first node. The communication device includes: a memory and a processor, wherein the memory includes instructions; the processor is configured to execute any of the possibilities in the second aspect. way of implementation.

In a possible implementation, for example, the processor is configured to report the bandwidth load of the first node to the management node, where the bandwidth load indicates the ratio of the currently used bandwidth to the configured bandwidth, and the first node Be any one of the convergence nodes or any one of the edge nodes included in the first network;

A processor, further configured to: when the bandwidth load of the first node is greater than or equal to a first threshold, the first node receives the first configuration information of the management node;

A processor configured to reconfigure the configuration bandwidth of the first node according to the first configuration information, wherein the reconfigured configuration bandwidth of the first node is determined according to the bandwidth load of the peer node, and the first network The upper-level node of the same-level node is the same as the upper-level node of the first node, which is the second node.

In one possible implementation,

The processor is further configured to send communication capability information of the first node to the management node, where the communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the maximum bandwidth of the node. Support bandwidth, wherein the protection bandwidth indicates the minimum required bandwidth of the node, and the required bandwidth indicates the bandwidth requested by the node to be allocated. Width.

In one possible implementation,

The processor is further configured to receive second configuration information from the management node; the first node reconfigures the protection bandwidth according to the second configuration information.

In one possible implementation,

The processor is further configured to receive third configuration information from the management node, where the third configuration information includes one or more of the following information: the first threshold, the bandwidth adjustment period and/or the reporting period, wherein, The reporting period indicates a period in which the first node reports the bandwidth load of the first node, and the bandwidth adjustment period indicates a period in which the first node adjusts the configured bandwidth of the first node.

A seventh aspect of this application provides a communication device, including: a communication interface;

A processor connected to the communication interface, based on the communication interface and the processor, causes the communication device to perform the method of any one of the foregoing first and/or second aspects.

In an eighth aspect, a communication system is provided. The communication system includes a communication device as in the third aspect.

A ninth aspect provides a communication system, which includes the communication devices of the third aspect and the fourth aspect.

A tenth aspect of the present application provides a computer storage medium, which may be non-volatile; computer readable instructions are stored in the computer storage medium, and when the computer readable instructions are executed by a processor, the first aspect is realized Or any method in the second aspect.

An eleventh aspect of the present application provides a computer program product containing instructions that, when run on a computer, cause the computer to execute the method in any implementation of the first aspect or the second aspect.

A twelfth aspect of the present application provides a chip system. The chip system includes a processor and an interface circuit, and is used to support network equipment to implement the functions involved in the above aspects, for example, sending or processing data involved in the above methods and/or or information. In a possible design, the chip system also includes a memory, which is used to store necessary program instructions and data for the network device. The chip system may be composed of chips, or may include chips and other discrete devices.

A thirteenth aspect of the present application provides a communication device, including: the communication device includes:

memory, including instructions;

A processor, when the processor executes the instructions, causes the communication device to execute the method of any one of the foregoing first and/or second aspects.

Description of the drawings

Figure 1 is a schematic diagram of a communication scenario involved in an embodiment of the present application;

Figure 2 is a schematic diagram of a congestion scenario involved in the embodiment of the present application;

Figure 3 is a schematic diagram of a congestion scenario involved in the embodiment of the present application;

Figure 4 is a schematic diagram of a congestion scenario involved in the embodiment of the present application;

Figure 5 is a schematic diagram of a congestion scenario involved in the embodiment of the present application;

Figure 6 is a schematic diagram of a bandwidth adjustment method in an embodiment of the present application;

Figure 7 is a schematic diagram of a bandwidth adjustment method in an embodiment of the present application;

Figure 8 is a schematic diagram of the first network in the embodiment of the present application;

Figure 9 is a schematic diagram of the hardware structure of the communication device in the embodiment of the present application;

Figure 10 is a schematic diagram of a communication device 1000 in the embodiment of the present application;

FIG. 11 is a schematic diagram of a communication device 1100 in an embodiment of the present application.

Detailed ways

Below, the embodiments of the present application are described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Persons of ordinary skill in the art will know that with the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

The terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the descriptions so used are interchangeable under appropriate circumstances so as to enable the embodiments to be practiced in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or modules and need not be limited to those explicitly listed. Those steps or modules may instead include other steps or modules not expressly listed or inherent to the processes, methods, products or devices. The naming or numbering of steps in this application does not mean that the steps in the method flow must be executed in the time/logical sequence indicated by the naming or numbering. The process steps that have been named or numbered can be implemented according to the purpose to be achieved. The order of execution can be changed for technical purposes, as long as the same or similar technical effect can be achieved. The division of units presented in this application is a logical division. In actual applications, there may be other divisions. For example, multiple units may be combined or integrated into another system, or some features may be ignored. , or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed may be through some interfaces, and the indirect coupling or communication connection between units may be electrical or other similar forms. There are no restrictions in the application. Furthermore, the units or subunits described as separate components may or may not be physically separated, may or may not be physical units, or may be distributed into multiple circuit units, and some or all of them may be selected according to actual needs. unit to achieve the purpose of this application plan.

Please refer to Figure 1, which is a schematic diagram of a communication scenario related to an embodiment of the present application. The communication scenario illustrated in Figure 1 includes: servers, primary aggregation nodes, secondary aggregation nodes and edge nodes. Among them, the server provides network services to edge nodes through multi-level aggregation nodes (including but not limited to first-level aggregation nodes and second-level aggregation nodes). The server may be a server or server cluster that provides communication services (such as cloud services).

In one possible implementation, the server is integrated with a management node, such as a wireless autonomous driving engine (MBB automation engine, MAE) or a telecom converged cloud (telco converged cloud, TCC). Among them, the management node is used to manage the edge nodes and convergence nodes in Figure 1, and the convergence node is used to forward the service data of the edge nodes.

In the communication scenario illustrated in Figure 1, the convergence node can be divided into multi-level convergence nodes according to its relative position to the server, such as a first-level convergence node, a second-level convergence node or a third-level convergence node (not shown in the figure), etc. . Among them, the upstream of the first-level aggregation node is directly connected to the server, and the downstream of the first-level aggregation node is connected to other aggregation nodes or edge nodes. Therefore, the first-level sink node can be regarded as the root node of the second-level sink node connected to the first-level sink node. The primary aggregation node serves as a relay node between the server and the secondary aggregation node (or edge node).

The upstream of the secondary convergence node is connected to the primary convergence node, and the downstream of the secondary node is connected to edge nodes or other convergence nodes. Node (e.g. three-level convergence node connection). The secondary convergence node serves as the relay node between the primary convergence node and the edge node (or the third-level convergence node).

By analogy, the upstream of the third-level convergence node is connected to the second-level convergence node, and the downstream of the third-level convergence node is connected to the edge node or other convergence nodes (such as the fourth-level convergence node). The third-level convergence node serves as the relay node between the second-level convergence node and the edge node (or the fourth-level convergence node). It can be understood that the communication scenario involved in the embodiment of the present application may also include more levels of convergence nodes, which will not be described again here.

In the communication scenario illustrated in Figure 1, the edge node can be a terminal device, a network device, or a customer premise equipment (CPE), etc. The embodiment of this application does not limit the edge node. For example: the edge node in the embodiment of this application can also be an edge computing device, where the edge computing device refers to a device used to perform multi-access edge computing (Multi-access Edge Computing) or mobile edge computing (mobile edge computing) device of. Examples of edge computing devices include but are not limited to: mobile phones, Internet of Things devices, smart home devices, industrial control devices, vehicle devices or drone devices, etc.

The network equipment in the embodiment of the present application may be a device in a radio access network (RAN) that provides wireless communication functions for terminal equipment, which is called a RAN equipment. For example, the RAN equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a next generation base station (next generation NodeB, gNB) in the 5G mobile communication system, a 3GPP subsequently evolved base station, a transmitting and receiving point ( transmission reception point (TRP), access node, wireless relay node, wireless backhaul node, etc. in WiFi system. In communication systems using different radio access technologies (RAT), the names of devices with base station functions may be different. For example, the LTE system may be called eNB or eNodeB, and the fifth generation mobile communication (fifth generation, 5G) system or new radio (new radio, NR) system may be called gNB. This application does not limit the specific name of the base station. The RAN device may contain one or more co-located or non-co-located transmitting and receiving points. For another example, the RAN equipment may include one or more centralized units (CU), one or more distributed units (DU), or one or more CUs and one or more DUs. These network function entities can be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (for example, a cloud platform).

The terminal equipment in the embodiment of this application may also be called user equipment (UE), including but not limited to: mobile phones, Internet of Things equipment, smart home equipment, industrial control equipment, vehicle equipment, and drone equipment. etc. In the embodiment of the present application, the terminal device is a variety of terminal devices or devices with line communication functions, such as: mobile phones (or "cellular" phones) and computers with mobile terminals. They can also be portable, pocket-sized, handheld A mobile device built into a computer or vehicle that exchanges voice and/or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDA) and other equipment . Terminal equipment may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, Remote terminal, access terminal, user terminal, user agent, user device, or user equipment. For example, vehicles, vehicle-mounted equipment, vehicle-mounted modules or units, aircraft (including but not limited to drones), airborne equipment, airborne modules or units, Drive test infrastructure equipment, handheld devices, wearable devices, computing devices or other processing devices connected to wireless modems, such as vehicle user equipment (VUE) or air conditioning user equipment, etc.

In the embodiment of this application, CPE includes but is not limited to: optical network terminal (optical network terminal, ONT), digital subscriber line modem (digital subscriber line modem, DSL Modem), router, network switch, residential gateway, set-top box, fixed mobile convergence Products, home network adapters or Internet access gateways and other devices, CPE can enable users to obtain corresponding services through nearby local area networks (LAN).

By way of example, the communication scenario illustrated in Figure 1 may be a campus network. A campus network is an internal network of an enterprise or institution, such as an enterprise campus network, a campus network, a government park network, a park network, or a business park network, etc.

In communication scenarios corresponding to campus networks, the following scenario often occurs: the sum of the port bandwidths of downstream nodes is greater than the bandwidth of upstream nodes. Take an edge node and its upstream aggregation node as an example. For example, edge node 1 and edge node 2 are connected to aggregation node 1. Aggregation node 1 is responsible for data forwarding of edge node 1 and edge node 2. Edge node 1 The maximum sending bandwidth is 25 gigabit per second (Gbps or G), the maximum sending bandwidth of edge node 2 is 25G, and the egress bandwidth of aggregation node 1 is 40G. When edge node 1 and edge node 2 send packets according to their maximum sending bandwidth, the aggregate traffic of edge node 1 and edge node 2 at convergence node 1 exceeds the egress bandwidth of convergence node 1, causing some packets to be lost and affecting service delays. and improve packet loss rate.

For ease of understanding, the possible congestion scenarios in the current campus network are introduced below:

In an example, please refer to Figure 2, which is a schematic diagram of a congestion scenario related to an embodiment of the present application. The upper-level node of the edge node is a convergence node, and the convergence node is connected to the edge node through an uplink port. The uplink transmission bandwidth of the edge node is 25G (Gigabit) bits/second (G bits/second is referred to as G), and the uplink port capability of the aggregation node is 20G. Since the uplink transmission bandwidth of the edge node is greater than the uplink port capacity of the convergence node, when the edge node sends service data to the convergence node according to the maximum uplink transmission bandwidth, packet loss occurs when the service data is transmitted to the convergence node, causing the edge node to Upstream congestion.

In another example, please refer to Figure 3, which is a schematic diagram of a congestion scenario related to an embodiment of the present application. The downstream of the sink node is connected to the two edge nodes. The uplink transmission bandwidth of the edge node is 25G, and the uplink port capability of the convergence node is 25G. Therefore, congestion will not occur in the transmission path from the edge node to the convergence node. Since the sum of the uplink port capabilities of the aggregation node is 50G, which is greater than the egress capability of the aggregation node, 40G, this causes congestion at the egress of the aggregation node.

In another example, please refer to Figure 4, which is a schematic diagram of a congestion scenario related to an embodiment of the present application. The downstream of the primary convergence node is connected to two secondary convergence nodes. The uplink transmission bandwidth of the second-level aggregation node is 40G, and the uplink port capability of the first-level aggregation node is 40G. Therefore, congestion will not occur in the transmission path from the second-level aggregation node to the first-level aggregation node. Since the sum of the uplink port capabilities of the second-level aggregation node is 80G, which is greater than the egress capability of the first-level aggregation node, 60G, this causes congestion at the egress of the first-level aggregation node.

In another example, please refer to Figure 5, which is a schematic diagram of a congestion scenario related to an embodiment of the present application. The downstream of the sink node is connected to two edge nodes (edge node 1 and edge node 2 in Figure 5). on this edge node The line transmission bandwidth is 25G, and the uplink port capability of the aggregation node is 20G. When backhaul services occur at edge node 1, for example, the service data of edge node 1 needs to be forwarded to edge node 2 through the aggregation node. At this time, the downlink service data from the upstream of the aggregation node (such as a server or core network) and the backhaul service data of edge node 1 need to be sent to edge node 2 through the uplink port of the aggregation node. The sum of the traffic of downlink service data and the traffic of backhaul service data is greater than the egress capability of the aggregation node, causing congestion.

Based on this, this application proposes a bandwidth adjustment method, which is applied to a first network. The first network includes: at least one convergence node and at least one edge node, where the convergence node is used to forward data of the edge node. The method includes : The management node obtains the bandwidth load of the first node, which indicates the ratio of currently used bandwidth to configured bandwidth. The first node is any one of the aggregation nodes or any one of the edges included in the first network. Node; when the bandwidth load of the first node is greater than or equal to the first threshold, the management node reconfigures the configured bandwidth of the first node according to the bandwidth load of the peer node, and the peer node in the first network The upper-level node of the first-level node is the same as the upper-level node of the first node. When the bandwidth load of the first node is high, the management node reconfigures the configured bandwidth of the first node according to the bandwidth load of the first node and the bandwidth load of the peer node. This avoids packet loss on the first node due to high bandwidth load, reduces service delay and packet loss rate. The management node dynamically adjusts the configured bandwidth of each node in the first network to reduce the probability of packet loss at the edge node due to sudden traffic and improve link utilization. Reduce cache space requirements on sink nodes. In addition, the load of each aggregation node in the first network can also be optimized to achieve load balancing.

Below, embodiments of the present application are introduced with reference to the accompanying drawings. The bandwidth adjustment method proposed by the embodiment of the present application includes:

(1) During the initialization process, the management node negotiates the protection bandwidth and required bandwidth for the node.

(2) The management node dynamically adjusts the configured bandwidth of the node.

First introduce (1), initialize the protection bandwidth and demand bandwidth for the node. Please refer to FIG. 6 , which is a schematic diagram of a bandwidth adjustment method according to an embodiment of the present application. A bandwidth adjustment method proposed in the embodiment of this application includes:

601a. Obtain communication capability information of the first node.

601b. Obtain the communication capability information of the second node.

601c. Obtain the communication capability information of the peer node.

Steps 601a to 601c are for the management node to obtain the communication capability information of each node (including the first node, the second node and the peer node) in the first network.

In this embodiment of the present application, the first node is any node in the first network. For example, the first node can be any convergence node or any edge node. Other nodes associated with the first node include: a second node and a peer node, wherein the superior node of the peer node in the first network is the same as the superior node of the first node, and the second The node is the upper-level node of the first node. In other words, the node at the upper level of the first node and the sibling node is the second node.

For ease of understanding, please refer to Figure 8 , which is a schematic diagram of the first network in this embodiment of the present application. Exemplarily, as shown in Figure 8, the first network includes: a server, aggregation nodes A to aggregation nodes E, and edge nodes A to edge nodes H. Among them, according to their relative positions to the server, convergence node A and convergence node E are first-level convergence nodes, and convergence node B, convergence node C, and convergence node D are second-level convergence nodes.

For example: the first node is edge node E, then the second node is convergence node D (that is, the upper level node of edge node E point), peer nodes include: edge node F and edge node G.

For another example, if the first node is convergence node B, then the second node is convergence node A (that is, the superior node of convergence node B). The peer nodes include convergence node C and convergence node D.

Regarding the management node: In the embodiment of this application, the management node can perform management, operation and maintenance or policy control on the aggregation node and/or edge node in the first network. The embodiments of this application do not limit the specific functions of the management node.

The management node may be an independently deployed node in the first network, such as a network controller, a wireless automatic driving engine (MBB automation engine, MAE) or a telecom converged cloud (telco converged cloud, TCC), etc.; the management node may also be a deployed ( or integrated) aggregation node, edge node or server in the first network, for example: a certain aggregation node in the first network performs the function of the management node, or a certain edge node in the first network performs the management The function of the node, or any one or more nodes in the first network collaboratively process and execute the function of the management node. For example, multiple nodes in the first network negotiate and recommend one or more nodes for performing related functions of the management node.

Before steps 601a to 601c, each node (ie, edge node or aggregation node) in the first network has initialized the configuration of protection bandwidth, and the configuration bandwidth is usually configured according to the required bandwidth of the node. Therefore, the configuration bandwidth can also be is called the actual configured bandwidth. In order to avoid the configuration bandwidth and protection bandwidth of each node from conflicting with each other, causing packet loss or congestion, after steps 601a to 601c, the management node determines whether the configuration bandwidth and protection bandwidth of the first node are needed based on the communication capability information of multiple nodes. Reconfigure, please refer to steps 602 to 603 for details.

602. Configure the configuration bandwidth of the first node.

In step 602, the management node determines the required bandwidth of the first node, the required bandwidth of the peer node, and the configured bandwidth of the second node based on the communication capability information of the multiple nodes. Then, the configured bandwidth of the first node is determined based on the required bandwidth of the next-level node (ie, the first node and the peer node) and the configured bandwidth of the upper-level node (the second node).

It should be noted that the required bandwidth of each convergence node in the first network is determined by the sum of the required bandwidths of the next-level nodes of the convergence node. For example, in Figure 8, the required bandwidth of convergence node A is determined by the sum of the required bandwidth of convergence node B, the required bandwidth of convergence node C, and the required bandwidth of convergence node D.

Specifically as follows: when the sum of the required bandwidth of the first node and the required bandwidth of the peer node is less than or equal to the configured bandwidth of the second node, the configured bandwidth of the first node is equal to the first node required bandwidth.

For example, the required bandwidth of the first node is 5G, the required bandwidth of the peer node is 5G, and the configured bandwidth of the second node is 10G. Since the sum of the required bandwidth of the first node and the required bandwidth of the peer node (the peer node of the first node) is equal to the configured bandwidth of the second node, the second node has sufficient bandwidth resources to provide to the first node and peers. level node is used. Then the configured bandwidth of the first node determined by the management node is 5G. The configured bandwidth of the peer node determined by the management node is 5G.

Or, when the sum of the required bandwidth of the first node and the required bandwidth of the peer node is greater than the configured bandwidth of the second node, configure the configuration according to the third bandwidth ratio and the configured bandwidth of the second node. The configured bandwidth of the first node, wherein the third bandwidth ratio is the ratio of the required bandwidth of the first node to the sum of the required bandwidth of the first node and the required bandwidth of the peer node, so The configured bandwidth of the first node is equal to the product of the third bandwidth ratio and the configured bandwidth of the second node.

It should be noted that the configured bandwidth of the second node may be determined by the management node based on the configured bandwidth of the upper-level node of the second node, the required bandwidth of the second node, and the required bandwidth of the peer node of the second node. The specific method of determining the configured bandwidth of the second node is similar to the method of determining the configured bandwidth of the first node, and will not be described again here.

It can be understood that, during the process of initializing the configuration bandwidth of the first node, the configuration bandwidth of the first node may be determined in the manner of step 602 to avoid reconfiguring the configuration bandwidth.

Further, the management node may configure the configuration bandwidth of each node step by step starting from the edge node of the first network and from bottom to top (that is, from the edge node to the first-level aggregation node) in the manner of step 602.

603. Configure the protection bandwidth of the first node.

In step 603, the management node determines the protection bandwidth of the first node, the protection bandwidth of the peer node, and the protection bandwidth of the second node based on the communication capability information of the multiple nodes. Then, based on the protection bandwidth of the next-level node (ie, the first node and the peer node) and the protection bandwidth of the upper-level node (the second node), it is determined whether the protection bandwidth of the first node needs to be reconfigured.

When the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node is less than or equal to the protection bandwidth of the second node, the configured protection bandwidth of the first node is equal to the protection bandwidth of the first node. Protect bandwidth. In other words, the protection bandwidth of the first node is not reconfigured.

When the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node is greater than the protection bandwidth of the second node, the third bandwidth is reconfigured according to a fourth bandwidth ratio and the protection bandwidth of the second node. The protection bandwidth of a node, wherein the fourth bandwidth ratio is the protection bandwidth of the first node and the protection bandwidth of the first node and the same The ratio of the sum of the protection bandwidths of the level nodes, the reconfigured protection bandwidth of the first node is equal to the product of the fourth bandwidth ratio and the protection bandwidth of the second node. In other words, when the sum of the protection bandwidths of the lower-level nodes is greater than the protection bandwidth of the upper-level node, the protection bandwidth of the first node needs to be reconfigured.

Further, the management node can configure each node step by step from the entry node of the first network (such as the first-level aggregation node or server) in the manner of step 603 from top to bottom (that is, from the first-level aggregation node to the edge node). protection bandwidth.

In the embodiment of this application, during the initialization negotiation phase, the management node can reconfigure the configuration bandwidth and protection bandwidth of nodes at all levels in the first network to avoid loss of nodes at all levels caused by conflicts between configuration bandwidth and protection bandwidth. Packets or congestion. Improve communication quality and link utilization. Reduce cache space requirements on sink nodes.

Please refer to FIG. 7 , which is a schematic diagram of a bandwidth adjustment method according to an embodiment of the present application. A bandwidth adjustment method proposed in the embodiment of this application includes:

701. The management node configures the first threshold, bandwidth adjustment period and/or reporting period to the first node.

Step 701 is an optional step. When step 701 is not executed, the first node may pre-configure one or more of the following information: the first threshold, the bandwidth adjustment period and/or the reporting period.

702. The management node obtains the bandwidth load of the first node.

In step 702, in a possible implementation manner, the management node receives the bandwidth load of the first node actively reported by the first node.

In another possible implementation, the management node actively obtains the bandwidth load of the first node.

For example, when the first node belongs to an edge node in the first network, the management node obtains the bandwidth load of each edge node in the first network.

703. When the bandwidth load of the first node is greater than or equal to the first threshold, the management node reconfigures the configured bandwidth of the first node according to the bandwidth load of the peer node.

In step 703, after the management node obtains the bandwidth load of the first node, the management node determines whether the configured bandwidth of the first node needs to be reconfigured based on the bandwidth load of the first node. Specifically, when the bandwidth load of the first node is greater than or equal to the first threshold, the management node determines, according to the bandwidth load of the first node and the bandwidth load of the peer node (the peer node refers to the peer node of the first node), Reconfigure the configured bandwidth of the first node. For example: the management node sends configuration information to the first node, and the first node reconfigures the configuration bandwidth of the first node according to the configuration information.

Below, we will discuss respectively according to whether there are low-load nodes among the sibling nodes of the first node: AA, when the sibling nodes include low-load nodes; BB, when the sibling nodes do not include low-load nodes, in other words, the sibling nodes are all Highly loaded nodes.

AA, when peer nodes include low-load nodes.

When the bandwidth load of the first node is greater than or equal to the first threshold, the management node considers the first node to be a high-load node. In this embodiment of the present application, nodes whose bandwidth load is greater than or equal to the first threshold are classified as high-load nodes, and nodes whose bandwidth load is lower than the first threshold are classified as low-load nodes. The management node then searches for the existence of a low-load node among the first node's sibling nodes. In other words, the management node searches whether there is at least one node among peer nodes whose bandwidth load is less than the first threshold. If it exists, the node whose bandwidth load is less than the first threshold is classified as a low-load node. The management node determines the remaining bandwidth of low-load nodes among peer nodes. The remaining bandwidth indicates the allocated and unused bandwidth of the current node. Then, the management node reconfigures the configured bandwidth of the first node based on the sum of the remaining bandwidths of the low-load nodes. The management node reconfigures the configured bandwidth of the low-load node based on the sum of the remaining bandwidth of the low-load node. The management node allocates the remaining bandwidth of the low-load node to the high-load node, so that the configuration bandwidth of the high-load node increases and the configuration bandwidth of the low-load node decreases. For example: when the low-load node includes node A and node B, the sum of the remaining bandwidth of the low-load node is the sum of the remaining bandwidth of node A and the remaining bandwidth of node B.

Secondly, the management node obtains the required bandwidth of all high-load nodes among the first node and the peer node, and then determines the sum of the required bandwidth of the high-load node. The bandwidth load of the high-load node is greater than or equal to the first threshold. For example, the next-level nodes of the second node include: the first node (node A), node B, and node C. Among them, node A is a high-load node, node B is a high-load node, and node C is a low-load node. Then the sum of the required bandwidth of high-load nodes is: the required bandwidth of node A plus the required bandwidth of node B.

Again, the management node determines the first bandwidth ratio, which is the required bandwidth of the first node and the high load saving ratio. The ratio of the sum of the required bandwidths of the points. For example: first bandwidth ratio = required bandwidth of node A/(required bandwidth of node A + required bandwidth of node B).

Regarding reconfiguring the configured bandwidth of the first node:

One possible implementation method is: the configured bandwidth of the first node after reconfiguration = the first bandwidth ratio * the sum of the remaining bandwidths of the low-load nodes.

Another possible implementation method is: the configured bandwidth of the first node after reconfiguration = first bandwidth ratio * sum of remaining bandwidths of low-load nodes * adjustment step. Adjust the step to a decimal number less than 1 and greater than 0. By setting the adjustment step, you can prevent the configuration bandwidth of the remaining low-load nodes from being reduced too much, causing the low-load nodes to become high-load nodes under low business pressure, affecting the normal operation of the business.

Optionally, the remaining bandwidth of a node can be the minimum of the following two values: 1. The configured bandwidth of the node minus the bandwidth load of the node; 2. The configured bandwidth of the node minus the protection bandwidth of the node.

BB. When the peer nodes do not include low-load nodes.

When the bandwidth load of the first node is greater than or equal to the first threshold, and the bandwidth load of all nodes among the first node's sibling nodes is greater than or equal to the first threshold, the management node considers that the first node and its sibling nodes are equal. For high load nodes. In order to achieve load balancing between the first node and the peer nodes, the management node triggers the reallocation of the configured bandwidth of the first node and peer nodes, as follows:

First, the management node obtains the required bandwidth of the first node, the required bandwidth of the peer node (that is, the peer node of the first node), and the required bandwidth of the second node. The remaining bandwidth indicates the allocated and unused bandwidth of the current node.

Regarding the first threshold, a possible implementation manner is that the first threshold is consistent with the second threshold in step 701. In this case, the first node detects its own bandwidth load. When the bandwidth load of the first node is greater than or equal to the first threshold (that is, the bandwidth load of the first node is greater than or equal to the second threshold), the first node reports to the management Node reports its own bandwidth load. The management node triggers reconfiguration of the configured bandwidth of the first node. Through this method, the communication resource overhead between the management node and the first node can be reduced.

Further, if the first node also includes a lower-level node, the lower-level node reconfigures the configuration bandwidth in the following method. Finally, the configuration bandwidth is reallocated from the first node to the edge node. For example: Take Figure 8 as an example, when the first node is the convergence node B. After convergence node B completes the reconfiguration of the configuration bandwidth, the next-level nodes of convergence node B: edge node A and edge node B reconfigure the configuration bandwidth according to their respective required bandwidths. The configured bandwidth of the reconfigured edge node A = the configured bandwidth of the reconfigured aggregation node B * the required bandwidth of edge node A / (the required bandwidth of edge node A + the required bandwidth of edge node B); the reconfigured edge node B Configuration bandwidth = configured bandwidth of reconfigured aggregation node B * required bandwidth of edge node B / (required bandwidth of edge node A + required bandwidth of edge node B).

In the embodiment of this application, the management node dynamically adjusts the configuration bandwidth of each node in the first network to reduce the probability of packet loss at the edge node due to sudden traffic, improve link utilization, optimize network quality, and reduce packet loss rate and time delay. Reduce cache space requirements on sink nodes. In addition, the load of each aggregation node in the first network can also be optimized to achieve load balancing.

The above mainly introduces the solutions provided by the embodiments of the present application from the perspective of methods. It can be understood that, in order to implement the above functions, the communication device includes hardware structures and/or software modules corresponding to each function. Persons skilled in the art should easily realize that, with the modules and algorithm steps of each example described in conjunction with the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Figure 9 is a schematic diagram of the hardware structure of the communication device in the embodiment of the present application. As shown in Figure 9, the communication device may include:

The communication device includes at least one processor 901, a communication line 907, a memory 903 and at least one communication interface 904.

The processor 901 can be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (server IC), or one or more programs for controlling the solution of this application. implemented integrated circuit.

Communication line 907 may include a path that carries information between the above-mentioned components.

The communication interface 904 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet.

The memory 903 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory (RAM)) or other type that can store information and instructions. As a dynamic storage device, the memory may exist independently and be connected to the processor through a communication line 907. Memory can also be integrated with the processor.

Among them, the memory 903 is used to store computer execution instructions for executing the solution of the present application, and is controlled by the processor 901 for execution. The processor 901 is configured to execute computer execution instructions stored in the memory 903, thereby implementing the communication method based on the application layer service optimization ALTO protocol provided by the above embodiments of the present application.

Optionally, the computer-executed instructions in the embodiments of the present application may also be called application codes, which are not specifically limited in the embodiments of the present application.

In specific implementation, as an embodiment, the communication device may include multiple processors, such as the processor 901 and the processor 902 in FIG. 9 . Each of these processors may be a single-CPU processor or a multi-CPU processor. A processor here may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

In specific implementation, as an embodiment, the communication device may also include an output device 905 and an input device 906. The output device 905 communicates with the processor 901 and can display information in a variety of ways. The input device 906 communicates with the processor 901 and can receive user input in a variety of ways. For example, the input device 906 may be a mouse, a touch screen device, a sensing device, or the like.

When the communication device is a terminal device, in the communication device, the processor 902 may include one or more processing units. For example, the processor 902 may include an application processor (application processor, AP), a modem processor, a graphics processor. Processor (graphics processing unit, GPU), image signal processor (ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/ Or neural network processing unit (NPU), etc. Among them, different processing units can be independent devices or integrated in one or more processors.

The controller may be the nerve center and command center of the communication device 900 . The controller can generate operation control signals based on the instruction operation code and timing signals to complete the control of fetching and executing instructions.

The processor 902 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in processor 902 is cache memory. This memory may hold instructions or data that have been recently used or recycled by processor 902 . If the processor 902 needs to use the instruction or data again, it can be called directly from the memory. Repeated access is avoided and the waiting time of the processor 902 is reduced, thus improving the efficiency of the system.

In some embodiments, processor 902 may include one or more interfaces. Interfaces may include integrated circuit (inter-integrated circuit, I1C) interface, integrated circuit built-in audio (inter-integrated circuit sound, I1S) interface, pulse code modulation (pulse code modulation, PCM) interface, universal asynchronous receiver and transmitter (universal asynchronous receiver/transmitter (UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and /or universal serial bus (USB) interface, etc.

It can be understood that the interface connection relationships between the modules illustrated in the embodiments of the present application are only schematic illustrations and do not constitute a structural limitation on the communication device 900 . In other embodiments of the present application, the communication device 900 may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.

The wireless communication function of the communication device 900 can be implemented through the antenna 1, the antenna 2, the mobile communication module, the wireless communication module, the modem processor and the baseband processor, etc.

In some possible implementations, the communication device 900 can use wireless communication functions to communicate with other devices.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in communication device 900 may be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example: the antenna can be 1 is multiplexed as a diversity antenna for wireless LAN. In other embodiments, antennas may be used in conjunction with tuning switches.

The mobile communication module can provide wireless communication solutions including 1G/3G/4G/5G applied on the communication device 900 . The mobile communication module may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module can receive electromagnetic waves through the antenna 1, perform filtering, amplification and other processing on the received electromagnetic waves, and transmit them to the modem processor for demodulation. The mobile communication module can also amplify the signal modulated by the modem processor and convert it into electromagnetic waves through the antenna 2 for radiation. In some embodiments, at least part of the functional modules of the mobile communication module may be provided in the processor 902. In some embodiments, at least part of the functional modules of the mobile communication module may be provided in the same device as at least part of the modules of the processor 902 .

A modem processor may include a modulator and a demodulator. Among them, the modulator is used to modulate the low-frequency baseband signal to be sent into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After the low-frequency baseband signal is processed by the baseband processor, it is passed to the application processor. The application processor outputs sound signals through audio devices (not limited to speakers, receivers, etc.), or displays images or videos through the display screen. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be independent of the processor 902 and may be provided in the same device as the mobile communication module or other functional modules.

The communication device 900 implements display functions through a GPU, a display screen, an application processor, and the like. GPU is an image processing microprocessor that connects the display and application processor. GPUs are used to perform mathematical and geometric calculations for graphics rendering. Processor 902 may include one or more GPUs that execute program instructions to generate or alter display information.

The external memory interface can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the communication device 900. The external memory card communicates with the processor 902 through the external memory interface to implement the data storage function. Such as saving music, videos, etc. files in external memory card.

Internal memory may be used to store computer executable program code, which includes instructions. The processor 902 executes instructions stored in the internal memory to execute various functional applications and data processing of the communication device 900 . Internal memory may include a program storage area and a data storage area. Among them, the stored program area can store an operating system, at least one application program required for a function (such as a sound playback function, an image playback function, etc.). The storage data area may store data created during use of the communication device 900 (such as audio data, phone book, etc.). In addition, the internal memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, universal flash storage (UFS), etc.

The above-mentioned communication device may be a general-purpose device or a special-purpose device. In a specific implementation, the communication device may be a desktop computer, a portable computer, a network server, a wireless terminal device, an embedded device, or a device with a similar structure as shown in FIG. 9 . The embodiments of the present application do not limit the type of communication device. The communication device can be either a cloud server or a terminal device, and is not limited here.

It can be understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the communication device 900 . In other embodiments of the present application, the communication device 900 may include more or fewer components than shown in the figures, or some components may be combined, some components may be separated, or some components may be arranged differently. The components illustrated may be implemented in hardware, software, or a combination of software and hardware.

Embodiments of the present application can perform operations on the communication device (including the management node or the first node) according to the above method examples. The division of functional modules, for example, can be divided into functional modules corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. In actual implementation, there may be other division methods.

The communication device in the present application will be described in detail below. Please refer to FIG. 10 . FIG. 10 is a schematic diagram of a communication device 1000 in the embodiment of the present application.

In a possible implementation, the communication device 1000 is used as a management node, and the communication device 1000 includes:

The transceiver module 1001 is configured to obtain the bandwidth load of a first node, which indicates the ratio of currently used bandwidth to configured bandwidth. The first node is any one of the convergence nodes or any one included in the first network. The edge node;

The processing module 1002 is configured to reconfigure the configured bandwidth of the first node according to the bandwidth load of the peer node when the bandwidth load of the first node is greater than or equal to the first threshold. The peer node in the first network The upper-level node of the first-level node is the same as the upper-level node of the first node, which is the second node.

In a possible implementation, the processing module 1002 is specifically configured to determine the remaining bandwidth of a low-load node when the bandwidth load of at least one node among the peer nodes is less than the first threshold. The load node belongs to the peer node, the bandwidth load of the low-load node is less than the first threshold, and the remaining bandwidth indicates the allocated and unused bandwidth of the current node;

In a possible implementation, the transceiver module 1001 is specifically configured to obtain the required bandwidth of the first node, and the required bandwidth indicates that the node requests the bandwidth allocated by the management node;

The transceiver module 1001 is specifically configured to obtain the required bandwidth of all high-load nodes among the peer node and the first node, and determine the sum of the required bandwidths of the high-load nodes, where the high-load node The bandwidth load is greater than or equal to the first threshold;

The processing module 1002 is specifically configured to determine a first bandwidth ratio, which is the ratio of the sum of the required bandwidth of the first node and the required bandwidth of the high-load node;

The processing module 1002 is specifically configured to reconfigure the configured bandwidth of the first node according to the first bandwidth ratio and the sum of the remaining bandwidth of the low-load node.

In a possible implementation, the processing module 1002 is further configured to reconfigure the configured bandwidth of the low-load node according to the sum of remaining bandwidths of the low-load node.

In a possible implementation, the processing module 1002 is specifically configured to reconfigure the configured bandwidth of the first node according to the first bandwidth ratio, the remaining bandwidth of the low-load node and the adjustment step, Wherein, the configured bandwidth of the first node after reconfiguration is less than the product of the first bandwidth ratio and the remaining bandwidth of the low-load node.

In a possible implementation, the transceiver module 1001 is specifically configured to obtain the required bandwidth of the first node and the required bandwidth of the second node, where the required bandwidth indicates the bandwidth requested by the node to be allocated;

The transceiver module 1001 is specifically used when the bandwidth load of all nodes in the same level node is greater than or equal to the At the first threshold, obtain the required bandwidth of each of the peer node and the first node and the remaining bandwidth of the second node;

The processing module 1002 is specifically used by the management node to determine a second bandwidth ratio. The second bandwidth ratio is the required bandwidth of the first node and each node among the peer node and the first node. The ratio of the sum of required bandwidths;

The processing module 1002 is specifically configured to reconfigure the configured bandwidth of the first node according to the second bandwidth ratio and the required bandwidth of the second node, where the second node is the first node The upper-level node, the configured bandwidth of the first node after reconfiguration is equal to the product of the second bandwidth ratio and the required bandwidth of the second node.

In a possible implementation, the transceiver module 1001 is also used to obtain the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node, so The second node is the upper-level node of the first node,

The transceiver module 1001 is also configured to configure the configuration bandwidth of the first node according to the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node.

In a possible implementation, the transceiver module 1001 is also configured to reconfigure the protection bandwidth to the first node.

In a possible implementation, the processing module 1002 is further configured to determine the communication capability information of the second node, the communication capability information of the first node, and the communication capability of the peer node according to the network topology information. capability information, The network topology information is obtained by the management node through bandwidth detection.

In a possible implementation, the transceiver module 1001 is also configured to configure the first threshold, bandwidth adjustment period and/or reporting period to the first node, wherein,

Please refer to FIG. 11 , which is a schematic diagram of a communication device 1100 in an embodiment of the present application. The communication device 1100 includes a memory and a processor, wherein the memory includes instructions, and the processor is configured to execute any of the implementations shown in the foregoing method embodiments.

In a possible implementation, the communication device 1100 is used as a management node. The communication device 1100 includes: a memory 1101 and a processor 1102, where the memory includes instructions; and the processor is configured to execute any of the implementations shown in the foregoing method embodiments.

In a possible implementation, for example, the processor 1102 is configured to obtain the bandwidth load of the first node, the bandwidth load indicating the ratio of the currently used bandwidth and the configured bandwidth, and the first node is the first node. Any one of the convergence nodes or any one of the edge nodes included in a network;

The processor 1102 is also configured to reconfigure the configured bandwidth of the first node according to the bandwidth load of the peer node when the bandwidth load of the first node is greater than or equal to the first threshold. The upper-level node of the same-level node is the same as the upper-level node of the first node, which is the second node.

In a possible implementation, the processor 1102 is specifically configured to determine the remaining bandwidth of a low-load node when the bandwidth load of at least one node among the peer nodes is less than the first threshold. The load node belongs to the peer node, the bandwidth load of the low-load node is less than the first threshold, and the remaining bandwidth indicates the allocated and unused bandwidth of the current node;

In a possible implementation, the processor 1102 is specifically configured to obtain the required bandwidth of the first node, where the required bandwidth indicates that the node requests the bandwidth allocated by the management node;

The processor 1102 is specifically configured to obtain the required bandwidth of all high-load nodes among the peer node and the first node, and determine the sum of the required bandwidths of the high-load nodes, wherein the high-load node The bandwidth load is greater than or equal to the first threshold;

The processor 1102 is specifically configured to determine a first bandwidth ratio, which is the ratio of the sum of the required bandwidth of the first node and the required bandwidth of the high-load node;

The processor 1102 is specifically configured to perform the processing according to the first bandwidth ratio and the remaining bandwidth of the low-load node. and, reconfiguring the configured bandwidth of the first node.

In a possible implementation, the processor 1102 is further configured to reconfigure the configured bandwidth of the low-load node according to the sum of remaining bandwidths of the low-load node.

In a possible implementation, the processor 1102 is specifically configured to reconfigure the configured bandwidth of the first node according to the first bandwidth ratio, the remaining bandwidth of the low-load node and the adjustment step, Wherein, the configured bandwidth of the first node after reconfiguration is less than the product of the first bandwidth ratio and the remaining bandwidth of the low-load node.

In a possible implementation, the processor 1102 is specifically configured to obtain the required bandwidth of the first node and the required bandwidth of the second node, where the required bandwidth indicates the bandwidth requested by the node to be allocated;

The processor 1102 is specifically configured to obtain the required bandwidth of each node in the peer node and the first node when the bandwidth load of all nodes in the peer node is greater than or equal to the first threshold. and the remaining bandwidth of the second node;

The processor 1102 is specifically used by the management node to determine a second bandwidth ratio. The second bandwidth ratio is the required bandwidth of the first node and each node among the peer node and the first node. The ratio of the sum of required bandwidths;

The processor 1102 is specifically configured to reconfigure the configured bandwidth of the first node according to the second bandwidth ratio and the required bandwidth of the second node, where the second node is the first node The upper-level node, the configured bandwidth of the first node after reconfiguration is equal to the product of the second bandwidth ratio and the required bandwidth of the second node.

In a possible implementation, the processor 1102 is also configured to obtain the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node, so The second node is the upper-level node of the first node,

The processor 1102 is further configured to configure the configured bandwidth of the first node according to the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node.

In a possible implementation, the processor 1102 is also configured to reconfigure the protection bandwidth to the first node.

In a possible implementation, the communication capability information of the second node includes: protection of the second node bandwidth;

In a possible implementation, the processor 1102 is further configured to determine the communication capability information of the second node, the communication capability information of the first node, and the communication capability of the peer node according to the network topology information. Capability information, the network topology information is obtained by the management node through bandwidth detection.

In a possible implementation, the processor 1102 is further configured to configure the first threshold, bandwidth adjustment period and/or reporting period to the first node, wherein,

It should be noted that the communication devices mentioned in the embodiments of the present application may be, for example, network equipment such as switches and routers, or may be part of the components on the network equipment, such as single boards or line cards on the network equipment. They may also be It is a functional module on the network device, and may also be a chip used to implement the method of the present application, which is not specifically limited in the embodiment of the present application. When the communication device is a chip, the transceiver module used to implement the method may be, for example, an interface circuit of the chip, and the processing module may be a processing circuit with a processing function in the chip. The communication devices may be directly connected through, but not limited to, Ethernet cables or optical cables.

In some possible embodiments, the above communication device (eg, management node and/or first node) may be implemented as a virtualization device. The virtualization device may be a virtual machine (VM), a virtual router or a virtual switch running a program for sending packets. Virtualization appliances are deployed on hardware devices (e.g., physical servers). For example, management nodes can be implemented based on general-purpose physical servers combined with network functions virtualization (NFV) technology.

It should be understood that the above-mentioned communication devices in various product forms have any functions of the management node and/or the first node) in the above-mentioned method embodiments, which will not be described again here.

An embodiment of the present application also provides a communication device, which includes: a communication interface; and a processor connected to the communication interface, based on the communication interface and the processor.

In a possible implementation, the communication device is used to manage a node, so that the communication device executes the method in the embodiments illustrated in FIGS. 6 to 8 .

In another possible implementation, the communication device is used in the first node, so that the communication device performs the method in the embodiments illustrated in FIGS. 6 to 8 .

An embodiment of the present application also provides a communication system, which includes the management node in the foregoing embodiment. The communication system is used to perform any of the implementations shown in the foregoing method embodiments.

An embodiment of the present application also provides a communication system, which includes the management node and the first node in the previous embodiment. The communication system is used to perform any of the implementations shown in the foregoing method embodiments.

Embodiments of the present application also provide a computer program product. The computer program product includes computer program code. When the computer program code is run on a computer, it causes the computer to execute any of the implementation methods shown in the foregoing method embodiments.

Embodiments of the present application also provide a chip system, including a memory and a processor. The memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the chip executes any one of the implementations shown in the foregoing method embodiments. Way.

Embodiments of the present application also provide a chip system, including a processor. The processor is configured to call and run a computer program, so that the chip executes any of the implementation methods shown in the foregoing method embodiments.

In addition, it should be noted that the device embodiments described above are only illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units. , that is, it can be located in one place, or it can be distributed across multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, in the drawings of the device embodiments provided in this application, the connection relationship between modules indicates that there are communication connections between them, which can be specifically implemented as one or more communication buses or signal lines.

Through the above description of the embodiments, those skilled in the art can clearly understand that the present application can be implemented by software plus necessary general hardware. Of course, it can also be implemented by dedicated hardware including dedicated integrated circuits, dedicated CPUs, dedicated memories, Special components, etc. to achieve. In general, all functions performed by computer programs can be easily implemented with corresponding hardware. Moreover, the specific hardware structures used to implement the same function can also be diverse, such as analog circuits, digital circuits or special-purpose circuits. circuit etc. However, for this application, software program implementation is a better implementation in most cases. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or that contributes to the existing technology. The computer software product is stored in a readable storage medium, such as a computer floppy disk. , U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk, etc., including a number of instructions to cause a computer device to execute the methods of various embodiments of the present application.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product.

A computer program product includes one or more computer instructions. When computer program instructions are loaded and executed on a computer, processes or functions according to embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, computer instructions may be transferred from a website, computer, network device, computing device, or data center To another website, Computer, network device, computing equipment or data center for transmission. The computer-readable storage medium may be any available medium that a computer can store, or a data storage device such as a network device or a data center integrated with one or more available media. Available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, solid state disk (Solid State Disk, SSD)), etc.

It will be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic associated with the embodiment is included in one or more embodiments of the present application. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

Those of ordinary skill in the art can appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software, or a combination of both. In order to clearly illustrate the relationship between hardware and software Interchangeability, in the above description, the composition and steps of each example have been generally described according to functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

A unit described as a separate component may or may not be physically separate. A component shown as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

Integrated units may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as independent products. Based on this understanding, the technical solution of the present application is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of various embodiments of the present application.

In short, the above are only preferred embodiments of the technical solution of the present application, and are not intended to limit the protection scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in this application. within the scope of protection.

Claims

A bandwidth adjustment method, characterized in that the method is applied to a first network, the first network includes: at least one convergence node and at least one edge node, wherein the convergence node is used to forward the edge node's Data, the methods include:

The management node obtains the bandwidth load of the first node, which indicates the ratio of currently used bandwidth to configured bandwidth. The first node is any one of the aggregation nodes or any one of the edge nodes included in the first network. ;

When the bandwidth load of the first node is greater than or equal to the first threshold, the management node reconfigures the configured bandwidth of the first node according to the bandwidth load of the peer node in the first network. The upper-level node is the same as the upper-level node of the first node and is the second node.
The method according to claim 1, characterized in that the management node reconfigures the configured bandwidth of the first node according to the bandwidth load of the peer node, including:

When the bandwidth load of at least one node among the peer nodes is less than the first threshold, the management node determines the remaining bandwidth of the low-load node, which belongs to the peer node, and the low-load node The bandwidth load is less than the first threshold, and the remaining bandwidth indicates the allocated and unused bandwidth of the current node;

The management node reconfigures the configured bandwidth of the first node according to the sum of the remaining bandwidths of the low-load nodes, and the configured bandwidth of the first node after reconfiguration is greater than that of the first node before reconfiguration. Configure bandwidth.
The method of claim 2, wherein the management node reconfigures the configured bandwidth of the first node according to the remaining bandwidth of the low-load node, including:

The management node obtains the required bandwidth of the first node, and the required bandwidth indicates that the node requests the bandwidth allocated by the management node;

The management node obtains the required bandwidth of all high-load nodes among the peer node and the first node, and determines the sum of the required bandwidth of the high-load nodes, wherein the bandwidth load of the high-load node is greater than or equal to the first threshold;

The management node determines a first bandwidth ratio, where the first bandwidth ratio is the ratio of the sum of the required bandwidth of the first node and the sum of the required bandwidth of the high-load node;

The management node reconfigures the configured bandwidth of the first node according to the sum of the first bandwidth ratio and the remaining bandwidth of the low-load node.
The method of claim 3, further comprising:

The management node reconfigures the configured bandwidth of the low-load node according to the sum of remaining bandwidths of the low-load nodes.
The method according to claim 3 or 4, characterized in that the management node reconfigures the configured bandwidth of the first node according to the first bandwidth ratio and the remaining bandwidth of the low-load node, including:

The management node re-calculates the first bandwidth ratio, the remaining bandwidth of the low-load node and the adjustment step. Configuring the configured bandwidth of the first node, wherein the configured bandwidth of the first node after reconfiguration is less than the product of the first bandwidth ratio and the remaining bandwidth of the low-load node.
The method according to any one of claims 1 to 5, characterized in that the management node reconfigures the configured bandwidth of the first node according to the bandwidth load of the peer node, including:

The management node obtains the required bandwidth of the first node and the required bandwidth of the second node, and the required bandwidth indicates the bandwidth requested by the node to be allocated;

When the bandwidth load of all nodes in the peer node is greater than or equal to the first threshold, the management node obtains the required bandwidth of each node in the peer node and the first node and the second The remaining bandwidth of the node;

The management node determines a second bandwidth ratio, where the second bandwidth ratio is the ratio of the required bandwidth of the first node to the sum of the required bandwidth of the peer node and each of the first nodes;

The management node reconfigures the configured bandwidth of the first node according to the second bandwidth ratio and the required bandwidth of the second node, wherein the second node is a superior node of the first node , the configured bandwidth of the first node after reconfiguration is equal to the product of the second bandwidth ratio and the required bandwidth of the second node.
The method according to any one of claims 1-6, characterized in that before the management node obtains the bandwidth load of the first node, the method further includes:

The management node obtains the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node. The second node is a superior level of the first node. node,

The communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the maximum supported bandwidth of the node, wherein the protection bandwidth indicates the minimum required bandwidth of the node, and the required bandwidth indicates the node's minimum required bandwidth. Request allocated bandwidth;

The management node reconfigures the configured bandwidth of the first node according to the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node.
The method according to claim 7, characterized in that:

The communication capability information of the second node includes: the configured bandwidth of the second node;

When the sum of the required bandwidth of the first node and the required bandwidth of the peer node is less than or equal to the configured bandwidth of the second node, the reconfigured configured bandwidth of the first node is equal to the first node the required bandwidth,

Or, when the sum of the required bandwidth of the first node and the required bandwidth of the peer node is greater than the configured bandwidth of the second node, the reconfigured configured bandwidth of the first node is equal to the sum of the third bandwidth ratio The product of the configured bandwidth of the second node, the third bandwidth ratio is the ratio of the required bandwidth of the first node to the sum of the required bandwidth of the first node and the required bandwidth of the peer node.
The method according to claim 7 or 8, characterized in that, the method further includes:

The management node reconfigures the protection bandwidth to the first node.
The method according to claim 9, characterized in that:

The communication capability information of the second node includes: the protection bandwidth of the second node;

When the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node is less than or equal to the protection bandwidth of the second node, the reconfigured protection bandwidth of the first node is equal to the first node the protection bandwidth,

Or, when the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node is greater than the protection bandwidth of the second node, the reconfigured protection bandwidth of the first node is equal to the fourth bandwidth ratio sum The product of the protection bandwidth of the second node, wherein the fourth bandwidth ratio is the ratio of the protection bandwidth of the first node to the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node .
The method according to any one of claims 7-10, characterized in that the management node obtains the communication capability information of the second node, the communication capability information of the first node and the communication capability information of the peer node. Communication capability information, including:

The management node determines the communication capability information of the second node, the communication capability information of the first node and the communication capability information of the peer node according to the network topology information. The network topology information is the communication capability information of the management node through Obtained through bandwidth detection.
The method according to any one of claims 1-11, characterized in that the method further includes:

The management node configures the first threshold, bandwidth adjustment period and/or reporting period to the first node, wherein,

The reporting period indicates a period in which the first node reports the bandwidth load of the first node,

The bandwidth adjustment period indicates a period in which the first node adjusts the configured bandwidth of the first node.
The method according to claim 12, characterized in that:

When the first node is the edge node, the second node belongs to the server of the first network or the convergence node;

Or, when the first node is the sink node, the second node belongs to the server of the first network or other sink nodes.
The method according to claim 13, characterized in that the management node is deployed at any one or more of the edge nodes and/or any one or more of the convergence nodes in the first network.
A communication device, characterized by including:

A transceiver module configured to obtain the bandwidth load of a first node, where the bandwidth load indicates the ratio of currently used bandwidth to configured bandwidth. The first node is any one of the convergence nodes or any one of the first nodes included in the first network. The edge node;

A processing module configured to reconfigure the configured bandwidth of the first node according to the bandwidth load of the peer node when the bandwidth load of the first node is greater than or equal to the first threshold. The peer node in the first network The upper-level node of the node is the same as the upper-level node of the first node, which is the second node.
The communication device according to claim 15, characterized in that:

The processing module is specifically configured to determine the remaining bandwidth of a low-load node when the bandwidth load of at least one node among the peer nodes is less than the first threshold, and the low-load node belongs to the peer node, so The bandwidth load of the low-load node is less than the first threshold, and the remaining bandwidth indicates the allocated and unused bandwidth of the current node;

The management node reconfigures the configured bandwidth of the first node according to the sum of the remaining bandwidths of the low-load nodes, and the configured bandwidth of the first node after reconfiguration is greater than that of the first node before reconfiguration. Configure bandwidth.
The communication device according to claim 16, characterized in that:

The transceiver module is specifically used to obtain the required bandwidth of the first node, and the required bandwidth indicates that the node requests the bandwidth allocated by the management node;

The transceiver module is specifically configured to obtain the required bandwidth of all high-load nodes among the peer nodes and the first node, and determine the sum of the required bandwidths of the high-load nodes, where the high-load node The bandwidth load is greater than or equal to the first threshold;

The processing module is specifically configured to determine a first bandwidth ratio, which is the ratio of the sum of the required bandwidth of the first node and the required bandwidth of the high-load node;

The processing module is specifically configured to reconfigure the configured bandwidth of the first node according to the sum of the first bandwidth ratio and the remaining bandwidth of the low-load node.
The communication device according to claim 17, characterized in that:

The processing module is also configured to reconfigure the configured bandwidth of the low-load node according to the sum of remaining bandwidths of the low-load node.
The communication device according to claim 17 or 18, characterized in that:

The processing module is specifically configured to reconfigure the configured bandwidth of the first node according to the first bandwidth ratio, the remaining bandwidth of the low-load node and the adjustment step, wherein the reconfigured first node The configured bandwidth of the node is less than the product of the first bandwidth ratio and the remaining bandwidth of the low-load node.
The communication device according to any one of claims 15-19, characterized in that,

The transceiver module is specifically configured to obtain the required bandwidth of the first node and the required bandwidth of the second node, where the required bandwidth indicates the bandwidth requested by the node to be allocated;

The transceiver module is specifically configured to obtain the required bandwidth sum of each node among the peer nodes and the first node when the bandwidth load of all nodes among the peers is greater than or equal to the first threshold. The remaining bandwidth of the second node;

The processing module is specifically configured for the management node to determine a second bandwidth ratio. The second bandwidth ratio is the required bandwidth of the first node and the bandwidth of each node among the peer node and the first node. The ratio of the sum of required bandwidths;

The processing module is specifically configured to reconfigure the configured bandwidth of the first node according to the second bandwidth ratio and the required bandwidth of the second node, where the second node is the bandwidth of the first node. For an upper-level node, the configured bandwidth of the first node after reconfiguration is equal to the product of the second bandwidth ratio and the required bandwidth of the second node.
The communication device according to any one of claims 15-20, characterized in that,

The transceiver module is also used to obtain the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node. The second node is the first node. The upper level node of

The communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the maximum supported bandwidth of the node, wherein the protection bandwidth indicates the minimum required bandwidth of the node, and the required bandwidth indicates the node's minimum required bandwidth. Request allocated bandwidth;

The transceiver module is further configured to configure the configuration bandwidth of the first node according to the communication capability information of the second node, the communication capability information of the first node, and the communication capability information of the peer node.
The communication device according to claim 21, characterized in that:

The communication capability information of the second node includes: the configured bandwidth of the second node;

When the sum of the required bandwidth of the first node and the required bandwidth of the peer node is less than or equal to the configured bandwidth of the second node, the configured bandwidth of the first node is equal to the required bandwidth of the first node ,

Or, when the sum of the required bandwidth of the first node and the required bandwidth of the peer node is greater than the configured bandwidth of the second node, the configured bandwidth of the first node is equal to the third bandwidth ratio and the third bandwidth ratio. The product of the configured bandwidth of the two nodes, the third bandwidth ratio is the ratio of the required bandwidth of the first node to the sum of the required bandwidth of the first node and the required bandwidth of the peer node.
The communication device according to claim 21 or 22, characterized in that:

The transceiver module is also used to reconfigure the protection bandwidth to the first node.
The communication device according to claim 23, characterized in that:

The communication capability information of the second node includes: the protection bandwidth of the second node;

When the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node is less than or equal to the protection bandwidth of the second node, the reconfigured protection bandwidth of the first node is equal to the first node the protection bandwidth,

Or, when the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node is greater than the protection bandwidth of the second node, the reconfigured protection bandwidth of the first node is equal to the fourth bandwidth ratio sum The product of the protection bandwidth of the second node, wherein the fourth bandwidth ratio is the ratio of the protection bandwidth of the first node to the sum of the protection bandwidth of the first node and the protection bandwidth of the peer node .
The communication device according to any one of claims 21-24, characterized in that:

The processing module is further configured to determine the communication capability information of the second node, the communication capability information of the first node and the communication capability information of the peer node according to the network topology information, where the network topology information is The above management nodes are obtained through bandwidth detection.
The communication device according to any one of claims 15-25, characterized in that:

The transceiver module is also configured to configure the first threshold, bandwidth adjustment period and/or reporting period to the first node, wherein,

The reporting period indicates a period in which the first node reports the bandwidth load of the first node,

The bandwidth adjustment period indicates a period in which the first node adjusts the configured bandwidth of the first node.
The communication device according to claim 26, characterized in that:

When the first node is the edge node, the second node belongs to the server of the first network or the convergence node;

Or, when the first node is the sink node, the second node belongs to the server of the first network or other sink nodes.
The communication device according to claim 27, wherein the management node is deployed at any one or more of the edge nodes and/or any one or more of the convergence nodes in the first network.
A communication device used as a management node, characterized in that the communication device includes:

memory, including instructions;

A processor, when the processor executes the instructions, causes the communication device to implement the method described in any one of claims 1 to 14.
A computer-readable storage medium with a computer program stored thereon, characterized in that when the computer program is executed by a processor, the method as described in any one of claims 1 to 14 is implemented.
A computer program product, characterized in that it includes a computer program. When the computer program is executed by a processor, the method according to any one of claims 1 to 14 is implemented.
A bandwidth adjustment method, characterized in that the method is applied to a first network, the first network includes: at least one convergence node and at least one edge node, wherein the convergence node is used to forward the edge node's Data, including:

The first node reports the bandwidth load of the first node to the management node. The bandwidth load indicates the ratio of the currently used bandwidth to the configured bandwidth. The first node is any one of the aggregation nodes included in the first network or any of the edge nodes;

When the bandwidth load of the first node is greater than or equal to the first threshold, the first node receives the first configuration information of the management node;

The first node reconfigures the configuration bandwidth of the first node according to the first configuration information, wherein the reconfigured configuration bandwidth of the first node is determined according to the bandwidth load of the peer node, and the first network The upper-level node of the same-level node is the same as the upper-level node of the first node, which is the second node.
The method of claim 32, further comprising:

The first node sends the communication capability information of the first node to the management node. The communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the maximum support of the node. Bandwidth, wherein the protection bandwidth indicates the minimum required bandwidth of the node, and the required bandwidth indicates the bandwidth requested by the node to be allocated.
The method according to claim 32 or 33, characterized in that, the method further includes:

The first node receives second configuration information from the management node;

The first node reconfigures the protection bandwidth according to the second configuration information.
The method according to any one of claims 32-34, characterized in that the method further includes:

The first node receives third configuration information from the management node, and the third configuration information includes one or more of the following information: the first threshold, the bandwidth adjustment period and/or the reporting period, wherein: The reporting period indicates a period in which the first node reports the bandwidth load of the first node, and the bandwidth adjustment period indicates a period in which the first node adjusts the configured bandwidth of the first node.
A communication device, characterized by including:

A transceiver module configured to report the bandwidth load of the first node to the management node, where the bandwidth load indicates the ratio of currently used bandwidth to configured bandwidth. The first node is any one of the aggregation nodes included in the first network. node or any of the edge nodes;

The transceiver module is also configured to receive the first configuration information of the management node when the bandwidth load of the first node is greater than or equal to the first threshold;

A processing module configured to reconfigure the configuration bandwidth of the first node according to the first configuration information, wherein the reconfigured configuration bandwidth of the first node is determined according to the bandwidth load of the peer node, and the first network The upper-level node of the same-level node is the same as the upper-level node of the first node, which is the second node.
The communication device according to claim 36, characterized in that:

The transceiver module is also configured to send the communication capability information of the first node to the management node. The communication capability information includes one or more of the following information: the protection bandwidth of the node, the required bandwidth of the node, or the node's required bandwidth. The maximum supported bandwidth, wherein the protection bandwidth indicates the minimum required bandwidth of the node, and the required bandwidth indicates the bandwidth requested by the node to be allocated.
The communication device according to claim 36 or 37, characterized in that:

The transceiver module is also configured to receive second configuration information from the management node; the first node reconfigures the protection bandwidth according to the second configuration information.
The communication device according to any one of claims 36-38, characterized in that:

The transceiver module is also configured to receive third configuration information from the management node. The third configuration information includes one or more of the following information: the first threshold, the bandwidth adjustment period and/or the reporting period, The reporting period indicates a period in which the first node reports the bandwidth load of the first node, and the bandwidth adjustment period indicates a period in which the first node adjusts the configured bandwidth of the first node.
A communication device used as a management node, characterized in that the communication device includes:

memory, including instructions;

A processor, when the processor executes the instructions, causes the communication device to implement the method of any one of claims 32 to 35.
A computer-readable storage medium with a computer program stored thereon, characterized in that when the computer program is executed by a processor, the method as described in any one of claims 32 to 35 is implemented.
A computer program product, characterized in that it includes a computer program, and when the computer program is executed by a processor, the method according to any one of claims 32 to 35 is implemented.
A communication system includes the communication device according to any one of claims 15 to 29, and the communication device according to any one of claims 36 to 39.