CN118041785A

CN118041785A - Bandwidth adjustment method, system, medium and product

Info

Publication number: CN118041785A
Application number: CN202211382932.8A
Authority: CN
Inventors: 杨三威; 张源斌; 朱金银
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2024-05-14
Also published as: WO2024098737A1

Abstract

The embodiment of the application provides a bandwidth adjusting method, a system, a medium and a product. Setting bandwidth adjustment overhead in a path layer container overhead area, and placing the overhead of a path layer carried by a link layer in the path layer, thereby reducing the overhead of the link layer; and the bandwidth adjustment cost and the mode setting of ending and regenerating the bandwidth adjustment cost by each node are also arranged in the path layer container, so that the bandwidth adjustment cost is transferred, ended and regenerated on a forwarding plane, the end-to-end interaction of lossless bandwidth adjustment is completed, the cooperative operation of a management and control layer is reduced, the complexity of bandwidth adjustment is reduced, the development difficulty is reduced, and the reliability of lossless bandwidth adjustment application is improved.

Description

Bandwidth adjustment method, system, medium and product

Technical Field

Embodiments of the present application relate to the field of communications technologies, and in particular, to a bandwidth adjustment method, a communications system, a storage medium, and a program product.

Background

The pipeline capacity of the OTN equipment is fixed, no matter the service size, the OTN equipment occupies a fixed container, and resource waste is easily caused. Therefore, OTN bandwidth adjustment techniques are proposed. The OTN bandwidth adjustment technique can flexibly configure the capacity of the container according to the actual size of the service.

In the related art, the bandwidth adjustment technique includes adjustment of a link layer and a path layer, and the adjustment process involves adjustment overhead of a corresponding layer. Specifically, as the amount of traffic increases, the number of path layer containers supported in the link layer container increases, and the link layer container requires more multiframes to transfer the path layer container-related overhead, resulting in an increase in link layer overhead. Therefore, how to reduce the overhead of the link layer in the bandwidth adjustment process is a problem to be discussed and solved.

Disclosure of Invention

The embodiment of the application provides a bandwidth adjusting method, a system, a medium and a product, aiming at reducing the expenditure of a link layer.

In a first aspect, an embodiment of the present application provides a bandwidth adjustment method, where bandwidth adjustment overhead is defined in an overhead area of a path layer container; performing mode setting on bandwidth adjustment overhead of an overhead area of the path layer container; and performing bandwidth adjustment according to the bandwidth adjustment overhead and the mode.

In a second aspect, an embodiment of the present application provides a communication system, including: at least one processor; at least one memory for storing at least one program; the bandwidth adjustment method according to the first aspect is implemented when at least one of the programs is executed by at least one of the processors.

In a third aspect, an embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores computer executable instructions for performing the bandwidth adjustment method according to the first aspect.

In a fourth aspect, an embodiment of the present application provides a computer program product, including a computer program or computer instructions, characterized in that the computer program or the computer instructions are stored in a computer readable storage medium, from which a processor of a computer device reads the computer program or the computer instructions, the processor executing the computer program or the computer instructions, causing the computer device to perform the bandwidth adjustment method according to the first aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 2 is a flowchart of a bandwidth adjustment configuration method according to an embodiment of the present application;

fig. 3 is a flowchart of a bandwidth adjustment configuration method according to an embodiment of the present application;

fig. 4 is a flowchart of a bandwidth adjustment method according to another embodiment of the present application;

Fig. 5 is a flowchart of a bandwidth adjustment method according to another embodiment of the present application;

FIG. 6 is a flow chart of bandwidth increase adjustment provided by an example of the present application;

FIG. 7 is a flow chart of bandwidth reduction adjustment provided by an example of the present application;

FIG. 8 is a flow chart of a process for bandwidth adjustment overhead in a path layer container provided by an example of the present application;

Fig. 9 is a schematic diagram of a communication system according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It should be noted that although functional block division is performed in a device diagram and a logic sequence is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the block division in the device, or in the flowchart. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In the description of the embodiments of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly, and those skilled in the art may reasonably determine the specific meaning of the terms in the embodiments of the present application in combination with the specific contents of the technical solutions.

In embodiments of the application, the words "further," "exemplary," or "optionally," etc. are used to indicate by way of example, illustration, or description, and should not be construed as preferred or advantageous over other embodiments or designs. The use of the words "further," "exemplary," or "optionally" and the like is intended to present the relevant concepts in a concrete fashion.

In the related art, the lossless adjustment technique generally includes adjustment of a link layer and a path layer, and the adjustment process thereof uses adjustment overhead of a corresponding layer, which generally causes the following two problems:

when the related technology performs lossless adjustment, the information of the path layer needs to be reflected in the link layer, and the node of the link layer can only transmit the bandwidth adjustment information of the path layer by using the link layer, so that the related overhead of the path layer needs to be transmitted in the link layer open up overhead interval, that is, the related overhead of part of the path layer can be carried in the link layer container, such as the time slot information occupied by the path layer, the serial number of the path layer container and the like. When the number of path layer containers supported in one link layer container increases, i.e. there are a plurality of services, the link layer container needs to use more multiframes to transfer the overhead related to the path layer container, and the overhead of the link layer increases linearly with the increase of service access, so that the transmission period becomes larger, for example, the problem exists in the lossless adjustment process of small particles.

The problem 2 is that from the use scene, lossless adjustment is an end-to-end application, the cost of a link layer container is terminated section by section, the cost cannot be transmitted thoroughly, at the moment, the control layer is required to cooperate to transmit the related bandwidth adjustment cost, the cooperation of multiple components improves the complexity of lossless bandwidth adjustment application, the development difficulty is increased, and the reliability of lossless bandwidth application is low. For example, G.HAO needs to configure the adjusted target time slot/bandwidth from network element to network element, and the subscriber side board card in the network element needs to communicate and transfer information between boards; where g.hao refers to lossless resizing of ODUflex (GFP) (g.hao) defined in the ITU-T g.7044 standard, a mechanism to resize allowing on-demand data rate adjustment of ODUflex (GFP) clients without affecting the integrity of the end-to-end connection existing communications in the g.709otn based transport network.

In order to solve the above problems, embodiments of the present application provide a bandwidth adjustment method, a bandwidth adjustment system, a medium, and a product, by setting bandwidth adjustment overhead in a path layer container overhead area, and placing overhead of a path layer carried by a link layer in the path layer, thereby reducing overhead of the link layer; and the bandwidth adjustment cost and the mode setting of ending and regenerating the bandwidth adjustment cost by each node are also arranged in the path layer container, so that the bandwidth adjustment cost is transferred, ended and regenerated on a forwarding plane, the end-to-end interaction of lossless bandwidth adjustment is completed, the cooperative operation of a management and control layer is reduced, the complexity of bandwidth adjustment is reduced, the development difficulty is reduced, and the reliability of lossless bandwidth adjustment application is improved.

Embodiments of the present application will be further described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application, where the communication system includes a first device 110, a second device 120, and a third device 130, as shown in the embodiment. The first device 110 is communicatively coupled to the second device 120, and the second device 120 is communicatively coupled to the third device 130.

In an embodiment, the first device 110 is a source node, the second device 120 is an intermediate node, and the third device 130 is a sink node.

In an embodiment, the first device 110 and the third device 130 are communicatively connected, where the first device 110 is a source node and the third device 130 is a sink node.

It will be appreciated that when bandwidth adjustment is made between two devices or nodes, the two devices or nodes are the source node and the sink node, respectively.

It will be appreciated that the number of devices and the communication relationship between devices in the communication system of the present embodiment can be extended and changed according to actual requirements, which are not specifically limited herein.

The technical scheme of the embodiment of the application can be applied to various communication technologies, such as microwave communication, light wave communication, millimeter wave communication and the like. The embodiment of the application does not limit the adopted specific technology and the specific equipment form.

The first device 110, the second device 120, and the third device 130 in the embodiments of the present application are collectively referred to as communication devices hereinafter for convenience of description. The communication device may be an automobile with a communication function, a Smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) device, an augmented Reality (Augmented Reality, AR) device, a communication device in industrial control (Industrial Control), a communication device in unmanned (SELF DRIVING), a communication device in teleoperation (Remote Medical Surgery), a communication device in a Smart grid (SMART GRID), a communication device in transportation security (Transportation Safety), a communication device in a Smart city (SMART CITY), a communication device in a Smart Home (Smart Home), or the like. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the equipment.

Fig. 2 is a flowchart of a bandwidth adjustment method according to an embodiment of the present application. As shown in fig. 2, the bandwidth adjustment method may be applied, but not limited to, to a communication system including at least two network elements, or a communication system as provided in the above embodiments. In the embodiment of fig. 2, the bandwidth adjustment method may include, but is not limited to, steps S1100, S1200, and S1300.

Step S1100: bandwidth adjustment overhead is defined in the overhead area of the path layer container.

In an embodiment, the bandwidth adjustment overhead includes at least any one of: an adjustment command; a target bandwidth; time slot configuration information.

In one embodiment, the adjustment command includes at least any one of the following: the bandwidth increases; bandwidth reduction; and (5) backing.

In one embodiment, the bandwidth adjustment overhead of the overhead area of the path layer container is set according to the bandwidth adjustment message.

Step S1200: and performing mode setting on the bandwidth adjustment overhead of the overhead area of the path layer container.

In an embodiment, the modes include a first mode and a second mode.

In an embodiment, when the mode is the first mode, the termination processing and the regeneration processing are performed on the bandwidth adjustment overhead of the path layer container, and when the mode is the second mode, the transparent transmission processing is performed on the bandwidth adjustment overhead of the path layer container.

In one embodiment, the terminating process includes: the content in the bandwidth adjustment overhead area is zeroed out.

In one embodiment, the regeneration process includes: bandwidth adjustment overhead content is generated and inserted into the bandwidth adjustment overhead region.

Step S1300: and performing bandwidth adjustment according to the bandwidth adjustment overhead and the mode.

It will be understood that in the specific embodiment of the present application, the network element and the node are the same reference numerals.

In an embodiment, the bandwidth adjustment method of the present application further includes: the management control system configures the network element into a first mode; the management control system sends a bandwidth adjustment message to the network element; the network element sets bandwidth adjustment overhead according to the bandwidth adjustment message; the network element performs bandwidth adjustment according to the bandwidth adjustment overhead.

In another embodiment, the bandwidth adjustment method of the present application further includes: the management control system sends a bandwidth adjustment message to the network element; the network element sets bandwidth adjustment cost and bandwidth enabling cost according to the bandwidth adjustment information, wherein the bandwidth enabling cost is 4 (N-1), and N is the number of network element nodes; the network element configures a mode of the network element as a first mode according to bandwidth enabling overhead; the network element performs bandwidth adjustment according to the bandwidth adjustment overhead.

In another embodiment, after the network element performs bandwidth adjustment, the network element configures a mode of the network element to be a second mode according to the bandwidth prohibition overhead.

In another embodiment, the bandwidth adjustment message includes at least any one of: an adjustment command; a target bandwidth; time slot configuration information; number of nodes N.

Fig. 3 is a flowchart of a bandwidth adjustment configuration method in which the bandwidth adjustment method shown in fig. 2 is applied to a node-to-node configuration. As shown in fig. 3, fig. 3 is a flowchart of a bandwidth adjustment configuration method according to an embodiment of the present application, where the bandwidth adjustment configuration method may be applied, but is not limited to, to a communication device or a node according to the above embodiment. In the embodiment of fig. 3, the bandwidth adjustment configuration method may include, but is not limited to, steps S110, S120.

Step S110: and setting bandwidth adjustment overhead in the overhead area of the path layer container of the node.

Wherein the bandwidth adjustment overhead includes at least one of: an adjustment command; a target bandwidth; time slot configuration information; number of network element nodes N.

In one embodiment, the bandwidth adjustment overhead includes an adjustment command, a target bandwidth, and slot configuration information.

In an embodiment, the bandwidth adjustment overhead comprises an adjustment command and a target bandwidth, or comprises an adjustment command and slot configuration information, or comprises a target bandwidth, slot configuration information.

In one embodiment, the adjustment command includes overhead associated with operations such as increasing bandwidth, decreasing bandwidth, and rollback.

Step S120: the node includes a first mode and a second mode. I.e. the bandwidth adjustment overhead of the overhead area of the path layer container of the node, the modes comprising a first mode, e.g. an operation mode, and a second mode, e.g. a transparent mode.

In an embodiment, the first mode is configured to terminate and regenerate bandwidth adjustment overhead.

In an embodiment, the first mode is configured to extract, terminate and regenerate bandwidth adjustment overhead.

In an embodiment, the second mode is configured to pass-through at least the bandwidth adjustment overhead.

The bandwidth adjustment procedure of the bandwidth adjustment method of the present application is further described below. Fig. 4 is a flowchart of a bandwidth adjustment method according to another embodiment of the present application. As shown in fig. 4, the bandwidth adjustment method may be applied to, but not limited to, a communication system including a source node 310 and a sink node 320, or a communication system provided in the above-described embodiment; wherein source node 310 includes a source node first end 311 and a source node second end 312, and sink node 320 includes a sink node first end 321 and a sink node second end 322; it will be appreciated that the source node 310 and the sink node 320 are communication nodes configured according to the bandwidth configuration method of the present application. In the embodiment of fig. 4, the bandwidth adjustment method may include, but is not limited to, steps S210, S220, S230, S240, and S250.

Step S210: the first mode is set. Each node is set to a first mode, wherein the first mode is configured to terminate and regenerate bandwidth adjustment overhead. I.e. the management control system configures each network element node into a first mode.

In an embodiment, step S210 further includes: receiving a bandwidth adjustment request message, wherein the bandwidth adjustment request message comprises a bandwidth adjustment request and the number of nodes; the source network element receives the bandwidth adjustment request message, generates bandwidth enabling expense and transmits the bandwidth enabling expense backwards; each network element sets the operation mode to the first mode according to the bandwidth enabling overhead.

In an embodiment, when the node comprises an intermediate node, the first mode is further configured to extract, terminate and regenerate the bandwidth adjustment overhead.

In one embodiment, the terminating process is comprised of: the content in the bandwidth adjustment overhead area is zeroed out. Specifically, the finalization process includes setting a value of bandwidth adjustment overhead in a bandwidth adjustment overhead area of the path layer container to 0. After extracting the bandwidth adjustment overhead from the path layer container, the node terminates the bandwidth adjustment overhead of the path layer container of the node, namely, sets 0.

In one embodiment, the regeneration process includes: bandwidth adjustment overhead content is generated and inserted into the bandwidth adjustment overhead region. Specifically, the regeneration process includes generating a new bandwidth adjustment overhead based on the extracted terminated bandwidth adjustment overhead and inserting the new bandwidth adjustment overhead into the bandwidth adjustment overhead area of the path layer container. It can be understood that in one bandwidth adjustment, the bandwidth adjustment overhead for the termination process is the same as the content of the regenerated bandwidth adjustment overhead.

In another embodiment, the management control system sends a bandwidth adjustment message to the source network element node, the source network element node generates bandwidth enabling overhead according to the number N of network element nodes in the bandwidth adjustment message, and transmits the bandwidth enabling overhead backward, and each network element node is configured into the first mode according to the bandwidth enabling overhead. Namely, step S210 includes: setting bandwidth enabling overhead; the first mode is set according to the bandwidth enabling overhead. A first end of a source node (namely a source end of a path layer) receives a bandwidth adjustment request and the number of nodes, wherein the bandwidth adjustment request comprises a bandwidth increase request message; the first end of the source node sets path layer bandwidth enabling overhead; each node is determined to be in a first mode based on the bandwidth-enabling overhead.

In an embodiment, a communication system including a source node and a sink node is exemplified.

A) Each node defaults to a second mode, the network manager issues a bandwidth adjustment request and the number n (n=2) of nodes to a first end of the source node, namely a source end of the path layer, and before the source end of the path layer starts to adjust, bandwidth enabling overhead is set to be 4 x (n-1) =4; the source end of the path layer sends bandwidth enabling overhead to the destination end of the path layer, and the bandwidth enabling overhead is transferred node by node.

B) In the forward link, after the second end of the source node (i.e. the source end of the link layer) and the first end of the destination node (i.e. the destination end of the link layer) receive the bandwidth enabling overhead, the mode of the bandwidth adjusting overhead of the local end is set as a first mode, and the bandwidth enabling overhead is reduced by 1.

C) And after receiving the bandwidth enabling cost, the second end of the sink node, namely the sink end of the path layer, returns the cost to the source end of the path layer.

D) In the reverse link, after the second end of the source node and the first end of the destination node receive the bandwidth enabling cost again, if the mode of the bandwidth adjusting cost of the local end is set to be the first mode, the bandwidth enabling cost is reduced by 1, otherwise, the cost is transmitted in a transparent way.

E) The first end of the source node receives the bandwidth enabling overhead, if the bandwidth enabling overhead is 0, it is indicated that each intermediate end has set the mode of the bandwidth adjusting overhead to the first mode, at this time, the first end of the source node stops sending the bandwidth enabling overhead, and the system starts to execute the related flow of bandwidth adjusting from step S220 to step S250. If the bandwidth enabling cost received by the first end of the endogenous node is still not 0 in the preset time period, stopping sending the bandwidth enabling cost, and reporting the adjustment failure.

In another embodiment, a communication system including a source node, an intermediate node, and a sink node is illustratively taken as an example.

A) Each node defaults to a second mode, the network manager issues a bandwidth adjustment request and the number n (n=3) of nodes to a first end of the source node, namely a source end of the path layer, and before the source end of the path layer starts to adjust, bandwidth enabling overhead is set to be 4 x (n-1) =8; the source end of the path layer sends bandwidth enabling overhead to the destination end of the path layer, and the bandwidth enabling overhead is transferred node by node.

B) In the forward link, after the second end of the source node (i.e. the source end of the link layer), the first end of the intermediate node, the second end of the intermediate node and the first end of the destination node (i.e. the destination end of the link layer) receive the bandwidth enabling overhead, the mode of adjusting the bandwidth overhead of the local end is set as a first mode, and the bandwidth enabling overhead is reduced by 1.

D) In the reverse link, after the second end of the source node, the first end of the intermediate node, the second end of the intermediate node and the first end of the destination node receive the bandwidth enabling overhead again, if the mode of the bandwidth adjusting overhead of the local end is set to be the first mode, the bandwidth enabling overhead is reduced by 1, otherwise, the overhead is transmitted in a transparent way.

It will be appreciated that the intermediate nodes may comprise a plurality of bandwidth enabling overheads passing through the first and second ends of each intermediate node in setting the first mode; the specific number of intermediate nodes is set according to actual requirements, and is not specifically limited herein.

By setting the bandwidth enabling cost, only the bandwidth enabling cost is required to be set at the source node, each end of the link is triggered and adjusted to be in a first mode according to the transmitted bandwidth enabling cost, control of management and control layer software is further reduced, and development difficulty is reduced.

In another embodiment, step S210 includes: fixedly setting each node to a first mode, wherein the first mode is configured to extract, terminate and regenerate bandwidth adjustment overhead; i.e. the mode of the bandwidth adjustment overhead of the first and second end of each node is fixed to the first mode.

The control of the control layer software is further reduced and the development difficulty is reduced by fixing the first mode.

Step S220: bandwidth adjustment information is received. And the source network element node receives the bandwidth adjustment information sent by the management control system.

Step S230: and setting bandwidth adjustment overhead. The source network element node sets bandwidth adjustment overhead according to the bandwidth adjustment information and transmits the bandwidth adjustment overhead to the destination network element node.

In one embodiment, the bandwidth adjustment overhead includes at least one of: adjustment command, target bandwidth, slot configuration information.

In an embodiment, the bandwidth adjustment overhead comprises a bandwidth increase overhead comprising at least one of: bandwidth up command, target bandwidth, slot configuration information.

In an embodiment, the bandwidth adjustment overhead comprises a bandwidth reduction overhead comprising at least one of: bandwidth reduction command, target bandwidth, slot configuration information.

Step S240: and adjusting the bandwidth according to the bandwidth adjustment overhead. And each network element node executes bandwidth adjustment operation according to the received bandwidth adjustment overhead.

In one embodiment, when the bandwidth adjustment overhead includes a bandwidth increase overhead, step S240 includes: performing bandwidth adjustment pretreatment according to bandwidth increase overhead; setting bandwidth confirmation overhead; and adjusting the bandwidth according to the bandwidth confirmation overhead.

In one embodiment, bandwidth adjustment preprocessing includes: and (5) checking bandwidth resources. In bandwidth increase adjustment, it is necessary to confirm whether bandwidth resources are sufficient for bandwidth increase.

In one embodiment, a communication system includes a source node and a sink node. It can be understood that the source node and the destination node are communication nodes configured according to the bandwidth configuration method of the present application. The bandwidth adjustment procedure will be described below by taking one bandwidth increase adjustment as an example.

A first end (path layer source end) of a source node receives a bandwidth increase request message; the first end of the source node sets bandwidth increasing cost in the path layer container cost area according to the bandwidth increasing request message.

The second end of the source node (link layer source end) extracts the bandwidth increasing overhead from the path layer container overhead area and performs termination processing on the bandwidth increasing overhead.

The second end of the source node carries out bandwidth adjustment pretreatment according to the extracted bandwidth increasing overhead, and regenerates the bandwidth increasing overhead in the overhead area of the path layer container; it will be appreciated that the regenerated bandwidth increase overhead is the same as the bandwidth increase overhead that is terminated after extraction.

The sink node first end (link layer sink) receives the regenerated bandwidth increase overhead and stores the regenerated bandwidth increase overhead in the path layer container overhead area.

The second end of the sink node (path layer sink end) extracts regenerated bandwidth increasing cost from the path layer container overhead area, increases interface bandwidth, sets bandwidth confirmation cost and returns, wherein the bandwidth confirmation cost is located in the path layer container overhead area.

And the first end of the sink node performs bandwidth adjustment pretreatment according to the bandwidth confirmation overhead.

The source node second receives the bandwidth confirmation overhead.

And the second end of the source node extracts the bandwidth confirmation cost, performs termination processing on the bandwidth confirmation cost of the path layer container cost area, increases the link bandwidth, and regenerates the bandwidth confirmation cost in the path layer container cost area.

The first end of the source node extracts regenerated bandwidth confirmation expenditure, increases the bandwidth of the path layer container, increases the interface bandwidth and completes bandwidth increase adjustment.

In particular, the bandwidth confirmation overhead may include the same information as the bandwidth adjustment overhead in the same bandwidth adjustment.

Specifically, the interface bandwidth is a user-side interface bandwidth.

The node extracts and terminates the bandwidth increasing overhead, and carries out bandwidth adjustment pretreatment to confirm that the bandwidth resource meets the adjustment requirement, and then carries out regeneration treatment on the bandwidth increasing overhead and continues to transmit; therefore, the problems that the current node cannot support bandwidth adjustment, but bandwidth increasing overhead is transmitted to the next node, so that partial node bandwidth adjustment fails, and the bandwidth adjustment failure caused by partial node bandwidth adjustment success and the feedback cannot be timely carried out can be avoided.

In another embodiment, a communication system includes a source node, at least one intermediate node, and a sink node. Fig. 5 is a flowchart of a bandwidth adjustment method according to another embodiment of the present application, as shown in fig. 5, a communication system includes a source node 410, an intermediate node 420, and a sink node 430, where the source node 410 includes a source node first end 411 and a source node second end 412, the intermediate node 420 includes an intermediate node first end 421 and an intermediate node second end 422, and the sink node 430 includes a sink node first end 431 and a sink node second end 432. It is understood that the source node 410, the intermediate node 420, and the sink node 430 are all communication nodes configured according to the bandwidth configuration method of the present application. The bandwidth adjustment procedure of three nodes will be described below by taking one bandwidth increase adjustment as an example.

The intermediate node first end receives the regenerated bandwidth increase overhead and stores it in the path layer container overhead area.

The second end of the intermediate node extracts bandwidth increasing overhead from the path layer container overhead area and performs termination processing on the bandwidth increasing overhead; it is understood that the intermediate node first end and the second end are both link layer intermediate ends.

And the second end of the intermediate node performs bandwidth adjustment pretreatment according to the extracted bandwidth increasing overhead, and regenerates the bandwidth increasing overhead in the path layer container overhead area.

And the first end of the sink node carries out bandwidth adjustment pretreatment according to the bandwidth confirmation cost and continuously returns the bandwidth confirmation cost.

The intermediate node second receives the bandwidth acknowledgement overhead and stores it in the path layer container overhead area.

The second end of the intermediate node extracts bandwidth confirmation cost, performs termination processing on the bandwidth confirmation cost of the path layer container cost area, increases the link bandwidth, and regenerates the bandwidth confirmation cost in the path layer container cost area;

and the first end of the intermediate node performs bandwidth adjustment preprocessing according to the bandwidth confirmation cost and continuously returns the bandwidth confirmation cost.

The source node second receives the bandwidth confirmation overhead.

The first end of the source node extracts regenerated bandwidth confirmation cost, increases the bandwidth of the path layer container and increases the interface bandwidth.

It is understood that the bandwidth increase overhead is the same as the regeneration bandwidth increase overhead in one bandwidth adjustment process.

It can be understood that when the communication system includes an intermediate node, bandwidth increasing overhead is transferred from a source node to the intermediate node and then from the intermediate node to a sink node, where the bandwidth increasing overhead is extracted, terminated and regenerated in each node and then transferred to the next node; the sink node returns the bandwidth confirmation overhead to the intermediate node and then transmits the bandwidth confirmation overhead from the intermediate node to the source node, wherein the bandwidth adjustment confirmation is extracted, terminated and regenerated in each node and then transmitted to the next node, and the corresponding bandwidth adjustment operation is performed. The communication system in the embodiment of the application can include, but is not limited to, a source node, at least one intermediate node and a sink node, and the intermediate node can be increased or decreased according to practical applications, and is not particularly limited in the application.

In an embodiment, after the first end of the source node extracts the regenerated bandwidth confirmation cost, the bandwidth of the path layer container is increased and the bandwidth of the user interface is increased according to the bandwidth confirmation cost; reporting failure to a network manager when the first end of the source node fails to adjust the bandwidth; and after the first end of the source node successfully adjusts the bandwidth, reporting a bandwidth increase adjustment success message to the network manager, and stopping sending the bandwidth increase overhead by the first end of the source node.

In an embodiment, after the second end of the sink node does not detect the bandwidth increase overhead, the second end of the sink node stops sending the bandwidth confirmation overhead.

In an embodiment, after the bandwidth increase adjustment is completed, each node actively reports the path bandwidth and the link resource change condition to the network manager, and after the network manager receives the bandwidth increase adjustment success message reported by the source node, the network manager switches the path layer container bandwidth adjustment overhead of all the nodes to the second mode.

In one embodiment, when the bandwidth adjustment overhead includes bandwidth reduction overhead, step S240 includes: and adjusting the bandwidth according to the bandwidth reduction overhead. Further, bandwidth acknowledgement overhead is set after bandwidth is adjusted according to bandwidth reduction overhead.

In one embodiment, a communication system includes a source node and a sink node. It can be understood that the source node and the destination node are communication nodes configured according to the bandwidth configuration method of the present application. The bandwidth adjustment procedure will be described below by taking one bandwidth reduction adjustment as an example.

The source node first end (path layer source end) receives the bandwidth reduction request message.

And the first end of the source node reduces the interface bandwidth and the path layer container bandwidth according to the request message, and sets bandwidth reduction cost in the path layer container cost area.

The second end of the source node (link layer source end) extracts the bandwidth reduction overhead from the path layer container overhead area and performs termination processing on the bandwidth reduction overhead of the path layer container overhead area.

The source node second end reduces the overhead according to the extracted bandwidth, reduces the link bandwidth, and regenerates the bandwidth reduction overhead in the path layer container overhead area.

The sink node first end (link layer sink) receives the regenerated bandwidth reduction overhead and stores it into the path layer container overhead area.

The second end of the sink node (path layer sink end) extracts regenerated bandwidth reduction overhead from the path layer container overhead area, reduces interface bandwidth, sets bandwidth acknowledgement overhead and loops back, wherein the bandwidth acknowledgement overhead is located in the path layer container overhead area.

The sink node first end receives the bandwidth confirmation overhead.

The source node second receives the bandwidth confirmation overhead.

The source node first end receives the bandwidth confirmation overhead.

The interface bandwidth is the interface bandwidth of the user side.

In another embodiment, a communication system includes a source node, at least one intermediate node, and a sink node. It is understood that the intermediate node is a communication node configured according to the bandwidth configuration method of the present application. The bandwidth adjustment procedure of three nodes will be described below by taking one bandwidth reduction adjustment as an example.

The intermediate node first end receives the bandwidth reduction overhead of the path layer and continues to send the overhead downstream.

The second end of the intermediate node extracts bandwidth reduction overhead from the path layer container overhead area and performs termination processing on bandwidth adjustment overhead of the path layer container overhead area; it is understood that the intermediate node first end and the second end are both link layer intermediate ends.

The intermediate node second end reduces the overhead according to the extracted bandwidth, reduces the link bandwidth, and regenerates the bandwidth reduction overhead in the path layer container overhead area.

The sink node first end receives the bandwidth confirmation overhead.

The second end of the intermediate node receives the bandwidth confirmation overhead.

The intermediate node first end receives the bandwidth confirmation overhead.

The source node second receives the bandwidth confirmation overhead.

The source node first end receives the bandwidth confirmation overhead.

The interface bandwidth is the interface bandwidth of the user side.

It is understood that the bandwidth reduction overhead is the same as the regenerated bandwidth reduction overhead during one bandwidth adjustment.

It can be appreciated that when the communication system includes an intermediate node, bandwidth reduction overhead is transferred from a source node to the intermediate node and then from the intermediate node to a sink node, where the bandwidth reduction overhead is extracted, terminated and regenerated in each node and then transferred to the next node; the sink node returns the bandwidth confirmation overhead to the intermediate node and then passes from the intermediate node to the source node. The communication system in the embodiment of the application can include, but is not limited to, a source node, at least one intermediate node and a sink node, and the intermediate node can be increased or decreased according to practical applications, and is not particularly limited in the application.

In an embodiment, after the source node first end extracts the bandwidth confirmation overhead from the bandwidth adjustment overhead area, the source node first end confirms that the bandwidth reduction adjustment is successful, stops sending the bandwidth reduction overhead, and reports a bandwidth reduction adjustment success message to the network manager.

In one embodiment, when the second end of the source node fails to adjust the link bandwidth, reporting the failure to the network manager.

In one embodiment, when the second end of the sink node fails to reduce the bandwidth of the interface, reporting the failure to the network manager.

In an embodiment, after the second end of the sink node does not detect the bandwidth reduction overhead, the second end of the sink node stops sending the bandwidth confirmation overhead.

In an embodiment, after the bandwidth reduction adjustment is completed, each node actively reports the path bandwidth and the link resource change condition to the network manager. And after receiving the bandwidth reduction adjustment success message reported by the source node, the network manager switches the path layer container bandwidth adjustment overhead of all the nodes into a second mode.

The bandwidth adjustment overhead is arranged in the path layer container overhead area, so that the overhead occupation of a link layer is reduced, and the link layer resource is saved; and through the setting of the first mode, the transmission, termination and regeneration of the bandwidth adjustment overhead are realized, the cooperative operation of a management and control layer is reduced, and the complexity of bandwidth adjustment is reduced.

Step S250: the second mode is set.

In an embodiment, the second mode is configured to pass through at least the bandwidth adjustment overhead.

In an embodiment, after the bandwidth adjustment is completed, the bandwidth adjustment costs of the path layer containers of the source node and the sink node are switched to a second mode, wherein the second mode is configured to perform transparent transmission processing on the bandwidth adjustment costs. Further, when the communication system includes an intermediate node, after the bandwidth adjustment is completed, the path layer container bandwidth adjustment overhead of the intermediate node is also switched to the second mode.

In an embodiment, the management control system configures each network element node into the second mode after the network element node performs bandwidth adjustment according to the bandwidth adjustment overhead.

In one embodiment, step S250 includes: after the network element node executes bandwidth adjustment according to the bandwidth adjustment cost, the network element node sets bandwidth inhibition cost and transmits the bandwidth inhibition cost backwards; and each network element node is set to a second mode according to the bandwidth inhibition overhead.

A) After bandwidth adjustment, a first end (source end of a path layer) of a source node sets bandwidth inhibition overhead as 2 x (n-1) and transmits the bandwidth inhibition overhead to downstream; where n is the number of nodes, n=2 in this embodiment.

B) In the forward link, after the second end of the source node (source end of the link layer) and the first end of the destination node (destination end of the link layer) receive the bandwidth prohibition overhead, the mode of the bandwidth adjustment overhead of the local end is set to be a second mode, and the bandwidth prohibition overhead is reduced by 1, so that the overhead is continuously transferred downstream.

C) After receiving the bandwidth prohibition overhead, the second end of the sink node (the sink end of the path layer) returns the overhead to the source end of the path layer.

D) In the reverse link, the source node second end and the sink node first end do not do any processing, and continue to loop back the overhead.

E) If the bandwidth forbidden cost received by the first end of the source node is 0, the mode of the bandwidth adjustment cost is adjusted to be a second mode by each node, and the bandwidth forbidden cost is stopped being sent; if the bandwidth prohibition overhead received by the first end of the endogenous node in the preset time period is not 0, stopping sending the bandwidth prohibition overhead, and reporting the adjustment failure.

A) After bandwidth adjustment, a first end (source end of a path layer) of a source node sets bandwidth inhibition overhead as 2 x (n-1) and transmits the bandwidth inhibition overhead to downstream; where n is the number of nodes, n=3 in this embodiment.

B) In the forward link, after the second end of the source node (source end of the link layer), the first end of the intermediate node (intermediate end of the link layer), the second end of the intermediate node (intermediate end of the link layer) and the first end of the sink node (sink end of the link layer) receive the bandwidth prohibition overhead, the mode of adjusting the bandwidth adjustment overhead of the local end is set as a second mode, and the bandwidth prohibition overhead is reduced by 1, so that the overhead is continuously transferred downstream.

D) In the reverse link, after the second end of the source node, the first end of the intermediate node, the second end of the intermediate node and the first end of the destination node receive the bandwidth prohibition overhead again, no processing is performed, and the overhead is continuously returned.

E) The first end of the source node receives the bandwidth prohibition overhead, if the bandwidth prohibition overhead is 0, the mode of the bandwidth adjustment overhead is set to the second mode by each end in the middle, and the first end of the source node stops sending the bandwidth prohibition overhead. If the bandwidth prohibition overhead received by the first end of the endogenous node is still not 0 in the preset time period, stopping sending the bandwidth prohibition overhead, and reporting the adjustment failure.

It can be understood that in the process that each network element node is configured into the second mode according to the bandwidth inhibition overhead, the bandwidth inhibition overhead is only required to be transmitted in one direction, so that each network element node can receive the bandwidth inhibition overhead once, and return confirmation is not required.

It will be appreciated that the intermediate nodes may comprise a plurality of bandwidth prohibitive overheads passing through the first and second ends of each intermediate node in setting the second mode; the specific number of intermediate nodes is set according to actual requirements, and is not specifically limited herein.

By setting the bandwidth inhibition overhead, only the source node needs to set the bandwidth inhibition overhead, and each end of the link is triggered and adjusted to be in a second mode according to the transmitted bandwidth inhibition overhead, so that the control of the control layer software is further reduced, and the development difficulty is reduced.

In an embodiment, after receiving the instruction for adjusting the bandwidth, the source network element generates a bandwidth enabling overhead according to the adjustment request and the number of nodes, where the bandwidth enabling overhead is 4 x (N-1), and N is the number of network element nodes. The source network element transmits the bandwidth enabling cost to the destination network element direction, the destination network element receives the bandwidth enabling cost and then transmits the bandwidth enabling cost back to the source network element, and each network element node is configured into a first mode according to the bandwidth enabling cost. And each network element in the first mode carries out bandwidth adjustment flow, and after the bandwidth adjustment is completed, the source network element generates bandwidth inhibition overhead, wherein the bandwidth inhibition overhead is set to be 2 (n-1), and n is the number of nodes. The source network element transmits the bandwidth forbidden cost to the destination network element, each network element and the destination network element in the middle configure themselves into the second mode after receiving the bandwidth forbidden cost, and the destination network element does not transmit the cost back after receiving the bandwidth forbidden cost. It can be appreciated that, reference is made to the above examples or embodiments for specific flows corresponding to the bandwidth enabling overhead and the bandwidth disabling overhead, which are not described herein.

In order to further illustrate the bandwidth adjustment method provided by the embodiment of the present application, the following examples are used for detailed description.

Example 1:

Fig. 6 is a flow chart of bandwidth increase adjustment provided by an example of the present application. As shown in fig. 6, the communication system in this example includes a source node 510, an intermediate node 520, and a sink node 530.

Unidirectional bandwidth lossless increase adjustment flow:

1) After the user starts the lossless bandwidth increasing command, the network manager configures the path layer container lossless bandwidth adjusting overhead of the intermediate link to be adjusted from the second mode to the first mode.

2) The network manager sends a bandwidth increase adjustment request message to the source node 510, and the path layer source end, that is, the A0 end of the source node 510, sets the bandwidth increase adjustment overhead of the path layer container according to the bandwidth increase adjustment request message, and sends the bandwidth increase adjustment overhead to the downstream.

3) The source end of the forward link, i.e., the A1 end of the source node 510 and the B2 end of the intermediate node 520, extracts the bandwidth increase adjustment overhead from the bandwidth adjustment overhead area of the path layer container, and performs a termination process on the bandwidth increase adjustment overhead of the path layer container, i.e., sets the value of the bandwidth increase adjustment overhead of the path layer container to 0. When the bandwidth increase adjustment overhead extracted from the source end of the forward link is 0, performing no bandwidth adjustment related processing; when the bandwidth increasing adjustment cost extracted by the source end of the forward link is not 0, performing preparation works such as bandwidth resource verification and the like according to information carried by the bandwidth increasing adjustment cost, if resources are insufficient, reporting the adjustment failure, and after the source end of the forward link completes the bandwidth adjusting preparation work, regenerating the bandwidth increasing adjustment cost of the path layer container, and continuing to transmit the bandwidth increasing adjustment cost to the downstream. The sink end of the forward link, i.e., the B1 end of the intermediate node 520 and the C1 end of the sink node 530, after receiving the bandwidth increase adjustment overhead, continues to send the overhead downstream without performing bandwidth adjustment related processing. It will be appreciated that the forward link overhead transfer order is, in order, the A1 end of the source node 510, the B1 end of the intermediate node 520, the B2 end of the intermediate node 520, and the C1 end of the sink node 530.

4) The sink end of the path layer, namely the C0 end of the sink node 530, extracts bandwidth increase adjustment overhead from the bandwidth adjustment overhead area of the path layer container, firstly adjusts the bandwidth of the client interface, and after success, sets bandwidth increase confirmation adjustment overhead in the path layer container and returns to the direction of the source node; if the adjustment fails, reporting the failure to the network manager.

5) After receiving the bandwidth increase acknowledgement adjustment overhead, the source end of the reverse link, i.e., the C1 end of the sink node 530 and the B1 end of the intermediate node 520, performs a bandwidth increase preparation, continues to send back the overhead upstream, and if the bandwidth increase preparation fails, e.g., the bandwidth resources are insufficient, terminates the bandwidth increase acknowledgement adjustment overhead, and sets the overhead to 0.

The reverse link sink, i.e., the B2 end of the intermediate node 520 and the A1 end of the source node 510, extracts the bandwidth-added acknowledgement adjustment overhead from the bandwidth-adjusted overhead area of the path layer container, and performs a termination process on the bandwidth-added acknowledgement adjustment overhead of the path layer container, i.e., sets the value of the bandwidth-added acknowledgement adjustment overhead of the path layer container to 0. Then, the bandwidth increasing processing of the forward link is carried out, after the bandwidth increasing processing is successful, the bandwidth increasing confirmation adjustment overhead is regenerated in the overhead area of the corresponding path layer container, and the forward link is continuously sent to the source end; if the adjustment fails, reporting the failure to the network manager. It is appreciated that the reverse link overhead transfer order is, in order, the C1 end of the sink node 530, the B2 end of the intermediate node 520, the B1 end of the intermediate node 520, and the A1 end of the source node 510.

6) The source end of the path layer extracts bandwidth increase confirmation adjustment cost from the bandwidth adjustment cost area of the path layer container, firstly adjusts the bandwidth of the path layer container, and then adjusts the bandwidth of the client side interface; if the adjustment fails, reporting the failure to the network manager; and after the adjustment is successful, reporting a bandwidth increase adjustment success message to the network manager, and stopping sending bandwidth increase adjustment overhead to the destination end of the path layer.

7) And stopping sending the bandwidth increase confirmation adjustment overhead after the sink end of the path layer cannot detect the bandwidth increase adjustment overhead.

8) After the adjustment is completed, each node actively reports the path bandwidth and the link resource change condition to the network manager, and after the network manager receives the bandwidth increase adjustment success message reported by the source node, the network manager adjusts the lossless bandwidth adjustment overhead of the path layer containers of all the nodes from the first mode to the second mode.

Example 2:

Fig. 7 is a flow chart of bandwidth reduction adjustment provided by an example of the present application. As shown in fig. 7, the communication system in this example includes a source node 610, an intermediate node 620, and a sink node 630.

Unidirectional bandwidth lossless reduction adjustment flow:

1) After the user starts the lossless bandwidth reduction command, the network manager configures the path layer container lossless bandwidth adjustment overhead of the intermediate link to adjust from the second mode to the first mode.

2) The network manager sends a bandwidth reduction adjustment request message to the source node 610, and the path layer source end, namely the A0 end of the source node 610, adjusts the client side interface bandwidth to the target bandwidth, adjusts the path layer container to the target bandwidth after the client interface bandwidth is reduced, sets bandwidth reduction adjustment overhead in the path layer container according to the bandwidth reduction request message after the completion, and sends the bandwidth reduction adjustment overhead to the downstream.

3) The source end of the forward link, i.e., the A1 end of the source node 610 and the B2 end of the intermediate node 620, extracts the bandwidth reduction adjustment overhead from the bandwidth adjustment overhead area of the path layer container, and performs a termination process on the bandwidth reduction adjustment overhead of the path layer container, i.e., sets the value of the bandwidth reduction adjustment overhead of the path layer container to 0. When the bandwidth reduction adjustment overhead extracted from the source end of the forward link is 0, performing no bandwidth adjustment related processing; when the bandwidth adjustment overhead extracted from the source end of the forward link is not 0, reducing the forward link bandwidth to a target bandwidth according to the information carried by the bandwidth reduction adjustment overhead, and if the adjustment fails, reporting failure to a network manager; and after the source end of the forward link finishes the link bandwidth reduction work, regenerating the bandwidth reduction adjustment overhead of the path layer container, and continuing to send the path layer container to the downstream node. The sink end of the forward link, i.e., the B1 end of the intermediate node 620 and the C1 end of the sink node 630, continues to send the bandwidth reduction adjustment overhead downstream after receiving the overhead. It will be appreciated that the forward link overhead transfer order is, in order, the A1 end of the source node 610, the B1 end of the intermediate node 620, the B2 end of the intermediate node 620, and the C1 end of the sink node 630.

4) The sink end of the path layer, namely the C0 end of the sink node 630, extracts bandwidth reduction adjustment overhead from the bandwidth adjustment overhead area of the path layer container, adjusts the bandwidth of the client side interface, and returns the bandwidth reduction confirmation adjustment overhead of the path layer container to the source end direction of the path layer after success; if the adjustment fails, the network manager reports the failure.

5) After each end of the reverse link receives the bandwidth reduction acknowledgement adjustment overhead, it continues to be looped back upstream. It is appreciated that the reverse link overhead transfer order is, in order, the C1 end of the sink node 630, the B2 end of the intermediate node 620, the B1 end of the intermediate node 620, and the A1 end of the source node 610.

6) And after extracting the bandwidth reduction confirmation adjustment cost from the bandwidth adjustment cost area, the source end of the path layer stops sending the bandwidth reduction adjustment cost and reports a bandwidth reduction adjustment success message to the network manager.

7) And stopping sending the bandwidth reduction confirmation adjustment overhead after the sink end of the path layer cannot detect the bandwidth reduction adjustment overhead.

8) After the adjustment is completed, each node actively reports the path bandwidth and the link resource change condition to the network manager, and after the network manager receives the bandwidth reduction adjustment success message reported by the source end of the path layer, the network manager adjusts the lossless bandwidth adjustment overhead of the path layer containers of all the nodes from the first mode to the second mode.

It can be understood that, in examples 1 and 2, the A0 end of the source node is the source node first end, the A1 end of the source node is the source node second end, the B1 end of the intermediate node is the intermediate node first end, the B2 end of the intermediate node is the intermediate node second end, the C1 end of the sink node is the sink node first end, and the C2 end of the sink node is the sink node second end.

Example 3:

Fig. 8 is a flow chart of a process for bandwidth adjustment overhead in a path layer container provided by an example of the present application.

In the process of bandwidth adjustment, the processing flow of bandwidth adjustment overhead in the path layer container is as follows:

Bandwidth adjustment overhead is set in the path layer container.

Bandwidth adjustment overhead is extracted from the path layer container.

And performing mode adjustment on the bandwidth adjustment overhead of the path layer container according to the mode adjustment information.

If the bandwidth adjustment overhead of the path layer container is the second mode, the bandwidth adjustment overhead is directly transmitted.

And if the bandwidth adjustment overhead of the path layer container is in the first mode, ending the bandwidth adjustment overhead of the path layer container.

And after the bandwidth adjustment overhead of the path layer container is subjected to termination processing, performing bandwidth resource verification according to the related bandwidth adjustment information carried by the extracted bandwidth adjustment overhead.

And if the bandwidth resource meets the bandwidth adjustment requirement, regenerating the bandwidth adjustment cost in the path layer container according to the extracted bandwidth adjustment cost.

If the bandwidth resource does not meet the bandwidth adjustment requirement, the bandwidth adjustment is represented as failed, and the corresponding node reports the bandwidth adjustment failure to the network manager.

The bandwidth adjustment method of the application defines lossless bandwidth adjustment cost in the cost area of the path layer container, and sets the mode of the bandwidth adjustment cost of the path layer container. And under the condition of the first mode, carrying out termination and regeneration processing on the bandwidth adjustment overhead of the path layer container, and under the condition of the second mode, carrying out transparent transmission processing on the bandwidth adjustment overhead of the path layer container. And when the bandwidth adjustment is successful, the bandwidth adjustment overhead of the path layer container is adjusted from the first mode to the second mode. The bandwidth adjustment overhead and the mode setting of the bandwidth adjustment overhead are defined in the path layer container overhead, so that the bandwidth adjustment overhead can be transmitted through a forwarding plane and is terminated/regenerated without loss, the end-to-end interaction of the bandwidth adjustment protocol is completed, the cooperative operation of management and control is reduced, and the problem that the transmission period of the bandwidth adjustment overhead carried by a link layer container is long is solved.

Fig. 9 is a schematic structural diagram of a communication system according to an embodiment of the present application. As shown in fig. 9, the communication system 2000 includes a memory 2100 and a processor 2200. The number of memory 2100, processors 2200 may be one or more, with one memory 2101 and one processor 2201 being illustrated in fig. 9; the memory 2101 and the processor 2201 in the network device may be connected by a bus or other means, for example in fig. 9.

The memory 2101 is used as a computer readable storage medium for storing a software program, a computer executable program, and modules, such as program instructions/modules corresponding to the methods provided in any of the embodiments of the present application. The processor 2201 implements the method provided in any of the above embodiments by running software programs, instructions, and modules stored in the memory 2101.

The memory 2101 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions. In addition, memory 2101 may include high-speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 2101 further includes memory located remotely from processor 2201, which may be connected to the device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

An embodiment of the present application also provides a communication device including a memory, a processor. The number of memories, processors may be one or more, taking one memory and one processor as an example; the memory and processor in the network device may be connected by a bus or other means, for example by a bus connection.

The memory is used as a computer readable storage medium for storing software programs, computer executable programs and modules, such as program instructions/modules corresponding to the methods provided by any of the embodiments of the present application. The processor implements the methods provided by any of the above embodiments by running software programs, instructions and modules stored in the memory.

The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some examples, the memory further includes memory remotely located with respect to the processor, the remote memory being connectable to the device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

An embodiment of the present application also provides a computer-readable storage medium storing computer-executable instructions for performing the bandwidth adjustment method or the bandwidth adjustment method as provided in any of the embodiments of the present application.

An embodiment of the present application also provides a computer program product, including a computer program or computer instructions, where the computer program or computer instructions are stored in a computer readable storage medium, and a processor of the computer device reads the computer program or computer instructions from the computer readable storage medium, and the processor executes the computer program or computer instructions, so that the computer device performs the bandwidth adjustment method or the bandwidth adjustment method as provided in any embodiment of the present application.

The system architecture and the application scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of the new application scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

Those of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.

In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components may reside within a process or thread of execution and a component may be localized on one computer or distributed between 2 or more computers. Furthermore, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with one another in a local system, distributed system, or across a network such as the internet with other systems by way of the signal).

Some embodiments of the application are described above with reference to the accompanying drawings, which do not limit the scope of the claims. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the present application shall fall within the scope of the appended claims.

Claims

1. A method for bandwidth adjustment applied to a communication system, the method comprising:

defining bandwidth adjustment overhead in an overhead area of the path layer container;

performing mode setting on bandwidth adjustment overhead of an overhead area of the path layer container;

and performing bandwidth adjustment according to the bandwidth adjustment overhead and the mode.

2. The method according to claim 1, characterized in that:

the modes include a first mode and a second mode.

3. The method according to claim 2, characterized in that:

And when the mode is the first mode, carrying out termination processing and regeneration processing on the bandwidth adjustment overhead of the path layer container, and when the mode is the second mode, carrying out transparent transmission processing on the bandwidth adjustment overhead of the path layer container.

4. The method of claim 3, wherein the terminating process comprises:

and zeroing the content in the bandwidth adjustment overhead area.

5. A method according to claim 3, wherein the regeneration process comprises:

Bandwidth adjustment overhead content is generated and inserted into the bandwidth adjustment overhead region.

6. The method of claim 1, wherein the communication system comprises at least two network elements, the method further comprising:

The management control system configures the network element into a first mode;

The management control system sends a bandwidth adjustment message to the network element;

The network element sets bandwidth adjustment overhead according to the bandwidth adjustment message;

And the network element executes bandwidth adjustment according to the bandwidth adjustment overhead.

7. The method of claim 1, wherein the communication system comprises at least two network elements, the method further comprising:

the network element sets bandwidth adjustment cost and bandwidth enabling cost according to the bandwidth adjustment information, wherein the bandwidth enabling cost is 4 (N-1), and N is the number of network element nodes;

The network element configures the mode of the network element as a first mode according to the bandwidth enabling overhead;

8. The method of claim 6, wherein after the network element performs bandwidth adjustment according to the bandwidth adjustment overhead, the method further comprises: the management control system configures the network element in a second mode.

9. The method of claim 7, wherein after the network element performs bandwidth adjustment according to the bandwidth adjustment overhead, the method further comprises: and the network element configures the mode of the network element to be a second mode according to the forbidden overhead.

10. The method according to claim 6 or 7, wherein the bandwidth adjustment message comprises at least any one of: an adjustment command; a target bandwidth; time slot configuration information; number of network element nodes N.

11. A communication system, comprising:

at least one processor;

At least one memory for storing at least one program;

The bandwidth adjustment method according to any of claims 1-10, when at least one of said programs is executed by at least one of said processors.

12. A computer readable storage medium storing computer executable instructions for performing the bandwidth adjustment method according to any one of claims 1-10.

13. A computer program product comprising a computer program or computer instructions, characterized in that the computer program or the computer instructions are stored in a computer readable storage medium, from which the computer program or the computer instructions are read by a processor of a computer device, the processor executing the computer program or the computer instructions causing the computer device to perform the bandwidth adjustment method according to any one of claims 1-10.