WO2022052664A1 - 资源配置方法、装置、服务器及存储介质 - Google Patents

资源配置方法、装置、服务器及存储介质 Download PDF

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Publication number
WO2022052664A1
WO2022052664A1 PCT/CN2021/110079 CN2021110079W WO2022052664A1 WO 2022052664 A1 WO2022052664 A1 WO 2022052664A1 CN 2021110079 W CN2021110079 W CN 2021110079W WO 2022052664 A1 WO2022052664 A1 WO 2022052664A1
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unidirectional link
resources
network
bandwidth
unidirectional
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PCT/CN2021/110079
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English (en)
French (fr)
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朱逸男
李宏飚
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中兴通讯股份有限公司
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Publication of WO2022052664A1 publication Critical patent/WO2022052664A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a resource configuration method, device, server, and storage medium.
  • IP Internet Protocol
  • the business traffic carried by the Internet Protocol (IP) layer is directional, and the business traffic carried by the two unidirectional links is different and has no necessary connection, that is, the two unidirectional links have a direct impact on the bandwidth resources.
  • the requirements are different, and based on the symmetric mode, the maximum bandwidth resources required by the ports of the two unidirectional links are configured with the same maximum bandwidth resources for the two unidirectional links, which will cause a great waste of bandwidth resources and make the bandwidth The utilization of resources is low.
  • the embodiment of the present application provides a resource configuration method, including: determining network resources required by each unidirectional link for transmitting service traffic according to service traffic requirements; and configuring network resources for each unidirectional link respectively.
  • the embodiment of the present application further provides a resource configuration device, including: a determination module, configured to determine network resources required by each unidirectional link for transmitting service traffic according to service traffic requirements; a configuration module, configured for each unidirectional link Links are configured with network resources respectively.
  • An embodiment of the present application further provides a server, including: at least one processor; and a memory connected in communication with the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are processed by the at least one processor The processor executes, so that at least one processor can execute the above-mentioned resource configuration method.
  • Embodiments of the present application further provide a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the foregoing resource configuration method is implemented.
  • FIG. 1 is a flowchart of a resource configuration method according to a first embodiment of the present application
  • FIG. 2 is a flowchart of a resource configuration method according to a second embodiment of the present application.
  • FIG. 3 is a flowchart of a resource configuration method according to a third embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a resource configuration apparatus according to a fourth embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a server according to a fifth embodiment of the present application.
  • the bearer network usually includes an IP layer and an optical transport layer.
  • the IP layer obtains the bandwidth resource requirements of each IP link according to business conditions, and then informs the optical transport layer to provide channel resources for the link.
  • the IP link between the two network devices is composed of two unidirectional links, and the two unidirectional links are tightly coupled, and the bandwidth resources of the two unidirectional links are configured based on symmetry To configure in the mode, that is, to obtain the maximum bandwidth resources required by the ports of the two unidirectional links, and configure the same maximum bandwidth resources for the two unidirectional links.
  • the service traffic carried by the IP layer is directional.
  • the service traffic carried by the two unidirectional links is not the same and there is no necessary connection, that is, the two unidirectional links have different requirements for bandwidth resources. Configuring the same maximum bandwidth resource for the two unidirectional links based on the maximum bandwidth resources required by the ports of the two unidirectional links based on the symmetric mode will cause great waste of bandwidth resources and lower utilization of bandwidth resources.
  • the main purpose of the embodiments of the present application is to provide a resource configuration method, device, server and storage medium, which can improve the utilization rate of network resources.
  • the first embodiment of the present application relates to a resource configuration method, which is applied to a software defined network (Software Defined Network, SDN) controller.
  • SDN Software Defined Network
  • Step 101 Determine the network resources required by each unidirectional link for transmitting the service flow according to the service flow requirement.
  • Step 102 Configure network resources for each unidirectional link respectively.
  • the SDN controller treats the two unidirectional links formed between any two network devices independently, that is, treats all unidirectional links independently.
  • the network resources required by the unidirectional link here refer to the network resources used for carrying out the service traffic on the unidirectional link.
  • the network resources required for transmission can represent the transmission capability of the unidirectional link; wherein, the network device may be a router or the like.
  • the SDN controller configures network resources for each unidirectional link respectively.
  • the network resources include bandwidth resources of two transmission ports in the unidirectional link and optical transmission resources required by the unidirectional link.
  • the two transmission ports of the unidirectional link refer to the transmission port of the network device serving as the sender and the transmission port of the network device serving as the receiver in the unidirectional link
  • the optical transmission resources of the unidirectional link refer to the two The wavelength resources required by the optical transmission layer formed between the optical transmission sites under the network equipment.
  • the transmission capability of the unidirectional link is affected by the bandwidth resources of the two transmission ports and the optical transmission resources required by the unidirectional link.
  • the SDN controller will allocate bandwidth resources and optical transmission resources to the two transmission ports of the unidirectional link based on the flow requirement.
  • a unidirectional link L1 is formed between the sending port 12 (Transmit X, TX) of router R1 and the receiving port 21 (Receive X, RX) of router R2, and the RX12 port of router R1 and the TX21 port of router R2 are formed.
  • Another unidirectional link L2 is formed.
  • the SDN controller treats the unidirectional link L1 and the unidirectional link L2 independently, and the service traffic that the unidirectional link L1 needs to carry and the service traffic that the unidirectional link L2 needs to carry may be Therefore, the SDN controller determines the bandwidth resources required by TX12 and RX21 in the unidirectional link L1 for transmitting service traffic and the bandwidth resources required by the unidirectional link L1 according to the service traffic that the unidirectional link L1 needs to carry. Optical transmission resources, and determine the bandwidth resources required by RX12 and TX21 in the unidirectional link L2 for transmitting service traffic and the optical transmission required by the unidirectional link L2 according to the service traffic that the unidirectional link L2 needs to carry resource.
  • the SDN controller determines that the bandwidth resources required by TX12 and RX21 in the unidirectional link L1 for transmitting service traffic are both 100G according to the service traffic that the unidirectional link L1 needs to carry, and determines that the unidirectional link L1
  • the required optical transmission resource is 100G wavelength
  • then configure 100G wavelength for unidirectional link L1 and configure 100G bandwidth resources for two ports TX12 and RX21 in unidirectional link L1 respectively; and according to unidirectional link L2 needs to carry If it is determined that the bandwidth resources required by RX12 and TX21 in the unidirectional link L2 used to transmit the service traffic are both 10G, and the optical transmission resources required by the unidirectional link L2 are determined to be 10G wavelengths, the single Configure 10G wavelength to link L2 and configure 10G bandwidth resources for two ports RX12 and TX21 in unidirectional link L2 respectively.
  • Two unidirectional links between two network devices constitute an IP link between the network devices, and the network resources configured on the two unidirectional links are different, that is, the IP link is an asymmetric link.
  • the method of determining the optical transmission resources required by the unidirectional link includes: determining the transmission performance index required by the unidirectional link according to the service flow requirements; according to the transmission performance required by the unidirectional link Indicator to determine the optical transmission resources required for a unidirectional link.
  • the bandwidth resources of the two transmission ports in the unidirectional link and the required transmission performance index of the unidirectional link can be determined; wherein, the bandwidth resources of the two transmission ports and the unidirectional link
  • the required transmission performance indicators are collectively referred to as the optical layer service level (Service Level Agreement, SLA) attributes.
  • Transmission performance indicators include delay indicators, packet loss rate indicators, data throughput indicators, etc., and transmission performance indicators will affect the one-way chain. Therefore, according to the transmission performance index that the unidirectional link needs to achieve, the optical transmission resources required by the unidirectional link are determined. Through such a method, the optical transmission resources required by the unidirectional link matching the transmission performance index required by the unidirectional link can be determined, so that the determined optical transmission resources required by the unidirectional link are more reasonable.
  • the SDN controller determines the network resources required by each unidirectional link used to transmit the service traffic according to the service flow requirement, and configures network resources for each unidirectional link respectively. Since each unidirectional link is independent, network resources can be configured for each unidirectional link, and the configured network resources are matched with the network resources required for each unidirectional link to transmit service traffic. The waste of network resources can be reduced and the utilization rate of network resources can be improved.
  • the second embodiment of the present application relates to a resource configuration method.
  • the second embodiment is substantially the same as the first embodiment, with the main difference being that the bandwidth resources configured for the two transmission ports in the unidirectional link are also adjusted.
  • the specific flow chart is shown in Figure 2.
  • Step 201 Determine network resources required by each unidirectional link for transmitting service traffic according to service traffic requirements; wherein, the network resources include bandwidth resources of two transmission ports in the unidirectional link and required by the unidirectional link. optical transmission resources.
  • Step 202 Configure network resources for each unidirectional link respectively.
  • Steps 201-202 are similar to steps 101-102 in the first embodiment, and are not repeated here.
  • the method of determining the optical transmission resources required by the unidirectional link includes: determining the transmission performance index required by the unidirectional link according to the service flow requirements; according to the transmission performance required by the unidirectional link Indicator to determine the optical transmission resources required for a unidirectional link.
  • Step 203 Monitor the utilization rate of bandwidth resources of each unidirectional link.
  • the SDN controller uses the included SDN application program (Software Defined Network Application, SDN APP) to monitor the utilization rate of the bandwidth resources of each unidirectional link, and the SDN APP can monitor the bandwidth resources of each unidirectional link in real time.
  • SDN application program Software Defined Network Application, SDN APP
  • the utilization rate of the bandwidth resources of each unidirectional link may also be monitored according to a preset period, and the preset period is set according to actual needs, which is not specifically limited in this embodiment.
  • Step 204 Obtain a corresponding indication according to the comparison result between the utilization rate of the bandwidth resource and the preset threshold in the policy associated with the unidirectional link.
  • network operation and maintenance personnel store various policies in the SDN APP of the SDN controller in advance, and the operation and maintenance personnel can define the content of the policy according to actual needs.
  • the content of the policy includes preset thresholds and network resource adjustment. Target.
  • SDN APP establishes an association relationship between different unidirectional links and policies according to the different requirements of unidirectional links.
  • a unidirectional link can establish an association relationship with one policy, and can also establish an association relationship with multiple policies. association relationship, and store the established association relationship and policy locally in the SDN APP.
  • the SDN APP monitors the bandwidth resource utilization of each unidirectional link, it queries the local policy associated with the unidirectional link, and compares the monitored bandwidth resource utilization with the preset threshold in the policy to obtain the comparison result. , and get corresponding instructions according to the comparison results.
  • a corresponding indication is obtained according to a comparison result between the utilization rate of the bandwidth resource and the preset threshold in the policy associated with the unidirectional link, including: if the utilization rate of the bandwidth resource is greater than the preset high threshold in the policy , obtain the indication of the network resource adjustment target of increasing network resources in the triggering policy; if the utilization rate of bandwidth resources is less than the preset low threshold in the policy, obtain the indication of the network resource adjustment target of reducing network resources in the triggering policy.
  • the content of the policy associated with the unidirectional link in this embodiment includes a preset high threshold, a preset low threshold, a network resource adjustment target for increasing network resources corresponding to the preset high threshold, and a preset high threshold.
  • a low threshold corresponds to a network resource adjustment target that reduces network resources. If the utilization rate of bandwidth resources is greater than the preset high threshold in the policy associated with the unidirectional link, and the preset high threshold corresponds to the network resource adjustment target of increasing network resources, then the triggering policy for increasing network resources is obtained.
  • the indication of the network resource adjustment target if the utilization rate of the bandwidth resource is less than the preset low threshold in the policy, and the preset low threshold corresponds to the network resource adjustment target of reducing network resources, then the trigger policy for reducing network resources is obtained. Indication of network resource adjustment goals. If the utilization rate of the bandwidth resource is not less than the preset low threshold and not greater than the preset high threshold, an instruction is obtained to continue monitoring the utilization rate of the bandwidth resource of the unidirectional link. Through this method, if the utilization rate of bandwidth resources is greater than the preset high threshold in the policy associated with the unidirectional link, it means that the unidirectional link carries a lot of service traffic at this time, and the network resources may be insufficient.
  • the indication of the network resource adjustment target for increasing network resources in the trigger policy is obtained; if the utilization rate of bandwidth resources is less than the preset low threshold in the policy associated with the unidirectional link, it means that the service traffic carried by the unidirectional link at this time is If the number of network resources is less, the network resource adjustment target for increasing network resources in the trigger policy is indicated, that is, the relationship between the utilization rate of bandwidth resources and the preset high threshold and the utilization rate of bandwidth resources and the preset high threshold can be obtained.
  • the relationship between the set low thresholds triggers reasonable indications, so as to make reasonable network resource adjustments.
  • the utilization rate of the bandwidth resource is greater than the preset high threshold in the policy associated with the unidirectional link, and if the utilization rate of the bandwidth resource is less than the preset low threshold in the policy, alarm information is also generated.
  • Step 205 if the indication is the network resource adjustment target in the trigger policy, adjust the bandwidth resources allocated to the two transmission ports in the unidirectional link according to the network resource adjustment target.
  • the SDN APP sends a network resource adjustment request to the Hierarchy Controller (H-controller) in the SDN controller, where the network resource adjustment request includes a single To the first and last two transmission ports of the link and the network resource adjustment target, the H-controller sends a network resource adjustment request to the protocol controller (Internet Protocol controller, IP-controller), and the IP-controller adjusts the configuration to the one-way according to the network resource adjustment request.
  • the protocol controller Internet Protocol controller, IP-controller
  • IP-controller Internet Protocol controller
  • the network device where the unidirectional link is located adjusts the bandwidth resources of the two transmission ports according to the configuration.
  • the network device returns the adjustment results to the SDN APP through the IP-controller and H-controller in turn, and the SDN APP records the adjustment results and presents them visually.
  • the indication is the network resource adjustment target for increasing network resources in the trigger policy
  • the bandwidth resources allocated to the two transmission ports in the unidirectional link are increased according to the network resource adjustment target to better meet the service traffic requirements
  • the indication is In order to trigger the network resource adjustment target of reducing network resources in the policy
  • the bandwidth resources allocated to the two transmission ports in the unidirectional link are reduced according to the network resource adjustment target, further reducing the waste of bandwidth resources and improving the utilization rate of network resources.
  • the policy further includes the bandwidth resource adjustment range of the transmission port; adjusting the bandwidth resources configured for the two transmission ports in the unidirectional link according to the network resource adjustment target, including: adjusting the target and the bandwidth of the transmission port according to the network resource
  • the resource adjustment range adjusts the bandwidth resources allocated to the two transmission ports in the unidirectional link.
  • the SDN APP sends a network resource adjustment request to the H-controller in the SDN controller, where the network resource adjustment request includes the first and last two transmission ports of the unidirectional link, the network resource adjustment target, and the bandwidth resources of the transmission port. adjustment range.
  • the bandwidth resources allocated to the two transmission ports in the unidirectional link can be adjusted directly according to the network resource adjustment target and the bandwidth resource adjustment range of the transmission port, so that the bandwidth resources of the transmission port can be adjusted. faster.
  • the SDN controller can adjust the network resources allocated to the unidirectional link according to the change in the utilization rate of the bandwidth resources, so that the demand for service traffic is more matched with the bandwidth resources allocated to the two transmission ports in the unidirectional link, It can better meet business traffic requirements or further reduce the waste of bandwidth resources and improve the utilization rate of network resources.
  • the third embodiment of the present application relates to a resource configuration method.
  • the third embodiment is substantially the same as the second embodiment, and the main difference is that the optical transmission resources of the unidirectional link are also adjusted.
  • the specific flow chart is shown in Figure 3.
  • Step 301 Determine the network resources required by each unidirectional link for transmitting service traffic according to the service flow requirements; wherein, the network resources include the bandwidth resources of the two transmission ports in the unidirectional link and the required bandwidth of the unidirectional link. optical transmission resources.
  • Step 302 Configure network resources for each unidirectional link respectively.
  • Step 303 Monitor the utilization rate of bandwidth resources of each unidirectional link.
  • Step 304 Obtain a corresponding indication according to the comparison result between the utilization rate of the bandwidth resource and the preset threshold in the policy associated with the unidirectional link.
  • Steps 301-304 are similar to steps 201-204 in the second embodiment, and are not repeated here.
  • the method of determining the optical transmission resources required by the unidirectional link includes: determining the transmission performance index required by the unidirectional link according to the service flow requirements; according to the transmission performance required by the unidirectional link Indicator to determine the optical transmission resources required for a unidirectional link.
  • Step 305 if the indication is the network resource adjustment target in the trigger policy, adjust the optical transmission resources allocated to the unidirectional link and the bandwidth resources of the two transmission ports in the unidirectional link according to the network resource adjustment target.
  • the SDN APP sends a network resource adjustment request to the H-controller in the SDN controller, wherein the network resource adjustment request includes the first and last two transmission ports of the unidirectional link and the optical layer path.
  • the H-controller sends a network resource adjustment request to the optical-controller, and the optical controller (optical-controller) adjusts the optical transmission resources allocated to the unidirectional link according to the network resource adjustment request.
  • the optical layer device adjusts the optical transmission resources according to the configuration; and the H-controller sends a network resource adjustment request to the IP-controller, and the IP-controller adjusts the bandwidth resources configured for the two transmission ports in the unidirectional link according to the network resource adjustment request.
  • the network device where the link is located adjusts the bandwidth resources of the two transmission ports according to the configuration.
  • the network device returns the adjustment results to the SDN APP through the IP-controller and H-controller in sequence, and the SDN APP records and visualizes the adjustment results; and/or the optical-layer device sequentially passes the adjustment results through the optical-
  • the controller and H-controller are returned to the SDN APP, and the SDN APP records the adjustment results and presents them visually.
  • the optical transmission resources configured for the unidirectional link and the bandwidth resources of the two transmission ports in the unidirectional link are increased according to the network resource adjustment target, and more Good to meet the service traffic requirements; if the indication is the network resource adjustment target of reducing network resources in the trigger policy, the optical transmission resources allocated to the unidirectional link and the two transmission ports in the unidirectional link are reduced according to the network resource adjustment target. It can further reduce the waste of bandwidth resources and optical transmission resources, and improve the utilization rate of network resources.
  • the strategy further includes the adjustment range of the bandwidth resources of the transmission port; adjusting the optical transmission resources configured for the unidirectional link and the bandwidth resources of the two transmission ports in the unidirectional link according to the network resource adjustment target, including: The network resource adjustment target and the bandwidth resource adjustment range of the transmission port adjust the bandwidth resources allocated to the two transmission ports in the unidirectional link. Since the policy includes the bandwidth resource adjustment range of the transmission port, the bandwidth resources allocated to the two transmission ports in the unidirectional link can be directly adjusted according to the bandwidth resource adjustment range of the transmission port, so that the bandwidth resource adjustment speed of the transmission port is faster.
  • the SDN controller can adjust the network resources allocated to the unidirectional link according to the change in the utilization rate of the bandwidth resources, so that the service traffic demand is related to the bandwidth resources allocated to the two transmission ports in the unidirectional link and the allocation to the unidirectional link.
  • the optical transmission resources of unidirectional links are more matched, which can better meet the needs of service traffic, or further reduce the waste of bandwidth resources and optical transmission resources, and improve the utilization rate of network resources.
  • the fourth embodiment of the present application relates to a resource configuration device, as shown in FIG. 4 , including:
  • the determining module 401 is configured to determine the network resources required by each unidirectional link for transmitting the service traffic according to the service traffic requirement.
  • the configuration module 402 configures network resources for each unidirectional link respectively.
  • the network resources include bandwidth resources of two transmission ports in the unidirectional link and optical transmission resources required by the unidirectional link.
  • the method of determining the optical transmission resources required by the unidirectional link includes: determining the transmission performance index required by the unidirectional link according to the service flow requirements; according to the transmission performance required by the unidirectional link Indicator to determine the optical transmission resources required for a unidirectional link.
  • the resource configuration apparatus further includes a monitoring module, an indication module, and an adjustment module, where the monitoring module is used to monitor the utilization rate of bandwidth resources of each unidirectional link; The comparison result of the preset thresholds in the policy associated with the link, to obtain a corresponding instruction; the adjustment module is used to adjust the configuration to two of the unidirectional links if the instruction is the network resource adjustment target in the trigger policy, according to the network resource adjustment target The bandwidth resource of the transport port.
  • adjusting the bandwidth resources allocated to the two transmission ports in the unidirectional link according to the network resource adjustment target includes: adjusting the optical transmission resources allocated to the unidirectional link and the optical transmission resources in the unidirectional link according to the network resource adjustment target. Bandwidth resources for the two transport ports.
  • a corresponding indication is obtained according to a comparison result between the utilization rate of the bandwidth resource and a preset threshold in the policy associated with the unidirectional link, including: if the utilization rate of the bandwidth resource is greater than the preset threshold in the policy If the high threshold is set, an indication of the network resource adjustment target of increasing network resources in the trigger policy is obtained; if the utilization rate of bandwidth resources is less than the preset low threshold in the policy, an indication of the network resource adjustment target of reducing network resources in the trigger policy is obtained.
  • the policy further includes the bandwidth resource adjustment range of the transmission port; adjusting the bandwidth resources configured for the two transmission ports in the unidirectional link according to the network resource adjustment target, including: adjusting the target and the bandwidth of the transmission port according to the network resource
  • the resource adjustment range adjusts the bandwidth resources allocated to the two transmission ports in the unidirectional link.
  • this embodiment is a device embodiment corresponding to the first embodiment, and this embodiment can be implemented in cooperation with the first embodiment.
  • the technical details mentioned in the first embodiment are still valid in this embodiment, and are not repeated here in order to reduce repetition.
  • the technical details mentioned in this embodiment can also be applied in the first embodiment.
  • a logical unit may be a physical unit, a part of a physical unit, or multiple physical units.
  • a composite implementation of the unit in order to highlight the innovative part of the present application, this embodiment does not introduce units that are not closely related to solving the technical problem raised by the present application, but this does not mean that there are no other units in this embodiment.
  • the fifth embodiment of the present application relates to a server, as shown in FIG. 5 , comprising at least one processor 502 ; and a memory 501 communicatively connected to the at least one processor 502 ; wherein, the memory 501 stores data that can be used by the at least one processor 502 executes the instructions, the instructions are executed by the at least one processor 502, so that the at least one processor 502 can execute the embodiments of the above-mentioned resource configuration method.
  • the memory and the processor are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors and various circuits of the memory.
  • the bus may also connect together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface between the bus and the transceiver.
  • a transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium.
  • the data processed by the processor is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor.
  • the processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, memory may be used to store data used by the processor in performing operations.
  • the sixth embodiment of the present application relates to a computer-readable storage medium storing a computer program.
  • the above method embodiments are implemented when the computer program is executed by the processor.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请实施例涉及通信领域，公开了一种资源配置方法、装置、服务器及存储介质。该方法包括：根据业务流量需求，确定用于传输业务流量的各单向链路所需的网络资源；为各单向链路分别配置所述网络资源。

Description

资源配置方法、装置、服务器及存储介质
交叉引用
本申请基于申请号为“202010961347.8”、申请日为2020年09月14日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请实施例涉及通信领域，特别涉及一种资源配置方法、装置、服务器及存储介质。
背景技术
网际互连协议(Internet Protocol，IP)层所承载的业务流量具有方向性，两条单向链路所承载的业务流量不一样且不存在必然联系，即两条单向链路对带宽资源的需求是不一样的，而基于对称模式以两条单向链路的端口所需的最大带宽资源为两条单向链路配置相同的最大带宽资源，会造成带宽资源的极大浪费，使得带宽资源的利用率较低。
发明内容
本申请实施例提供了一种资源配置方法，包括：根据业务流量需求，确定用于传输业务流量的各单向链路所需的网络资源；为各单向链路分别配置网络资源。
本申请实施例还提供了一种资源配置装置，包括：确定模块，用于根据业务流量需求，确定用于传输业务流量的各单向链路所需的网络资源；配置模块，为各单向链路分别配置网络资源。
本申请实施例还提供了一种服务器，包括：至少一个处理器；以及，与至少一个处理器通信连接的存储器；其中，存储器存储有可被至少一个处理器执行的指令，指令被至少一个处理器执行，以使至少一个处理器能够执行上述资源配置方法。
本申请实施例还提供了一种计算机可读存储介质，存储有计算机程序，计算机程序被处理器执行时实现上述资源配置方法。
附图说明
图1是根据本申请第一实施例中的资源配置方法的流程图；
图2是根据本申请第二实施例中的资源配置方法的流程图；
图3是根据本申请第三实施例中的资源配置方法的流程图；
图4是根据本申请第四实施例中的资源配置装置的结构示意图；
图5是根据本申请第五实施例中的服务器的结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施例进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施例中，为了 使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施例的种种变化和修改，也可以实现本申请所要求保护的技术方案。以下各个实施例的划分是为了描述方便，不应对本申请的具体实现方式构成任何限定，各个实施例在不矛盾的前提下可以相互结合相互引用。
目前，承载网络通常包含IP层和光传输层，通常IP层会根据业务情况得出每一条IP链路的带宽资源的需求，然后再通知光传输层为链路提供波道资源。其中，两个网络设备之间的IP链路是由两条单向链路组成的，且两条单向链路是紧密耦合的，在配置两条单向链路的带宽资源时是基于对称模式进行配置的，即获取两条单向链路的端口所需的最大带宽资源，为两条单向链路配置相同的最大带宽资源。
然而，IP层所承载的业务流量具有方向性，两条单向链路所承载的业务流量不一样且不存在必然联系，即两条单向链路对带宽资源的需求是不一样的，而基于对称模式以两条单向链路的端口所需的最大带宽资源为两条单向链路配置相同的最大带宽资源，会造成带宽资源的极大浪费，使得带宽资源的利用率较低。
本申请实施例的主要目的在于提出一种资源配置方法、装置、服务器及存储介质，可以提高网络资源的利用率。
本申请的第一实施例涉及一种资源配置方法，应用于软件定义网络(Software Defined Network，SDN)控制器。具体流程如图1所示。
步骤101，根据业务流量需求，确定用于传输业务流量的各单向链路所需的网络资源。
步骤102，为各单向链路分别配置网络资源。
具体地说，SDN控制器将任意两个网络设备之间形成的两条单向链路独立看待，即将所有的单向链路独立看待，由于各单向链路需要承载的业务流量不同，所以根据业务流量需求确定用于传输业务流量的各单向链路所需的网络资源，这里所述的单向链路所需的网络资源，是指用于在该单向链路上进行业务流量传输时需要用到的网络资源，可以表征该单向链路的传输能力；其中，网络设备可以为路由器等。在确定了各单向链路所需的网络资源之后，SDN控制器为各单向链路分别配置网络资源。
在一个例子中，网络资源包括单向链路中两个传输端口的带宽资源和单向链路所需的光传输资源。
具体地说，单向链路的两个传输端口是指单向链路中作为发送端的网络设备的传输端口以及作为接收端的网络设备的传输端口，单向链路的光传输资源是指两个网络设备下的光传输站点之间形成的光传输层所需的波长资源。其中，单向链路的传输能力受到两个传输端口的带宽资源和单向链路所需的光传输资源的影响。通常的，当单向链路上的业务流量需求给定后，SDN控制器会基于该流量需求为该单向链路的两个传输端口分配带宽资源以及光传输资源。
例如：路由器R1的发送端口12(Transmit X，TX)和路由器R2的接收端口21(Receive X，RX)之间形成一条单向链路L1，路由器R1的RX12口和路由器R2的TX21口之间形成另一条单向链路L2，SDN控制器将单向链路L1和单向链路L2独立看待，且单向链路L1需要承载的业务流量和单向链路L2需要承载的业务流量可能不相同，所以SDN控制器根据单向链路L1需要承载的业务流量，确定用于传输业务流量的单向链路L1中的TX12和RX21所需的带宽资源以及单向链路L1所需的光传输资源，以及根据单向链路L2需要承载的业务 流量，确定用于传输业务流量的单向链路L2中的RX12和TX21所需的带宽资源以及单向链路L2所需的光传输资源。若SDN控制器根据单向链路L1需要承载的业务流量，确定用于传输业务流量的单向链路L1中的TX12和RX21所需的带宽资源均为100G，以及确定单向链路L1所需的光传输资源为100G波长，则为单向链路L1配置100G波长和为单向链路L1中的两个端口TX12和RX21分别配置100G的带宽资源；而根据单向链路L2需要承载的业务流量，确定用于传输业务流量的单向链路L2中的RX12和TX21所需的带宽资源均为10G，以及确定单向链路L2所需的光传输资源为10G波长，则为单向链路L2配置10G波长和为单向链路L2中的两个端口RX12和TX21分别配置10G的带宽资源。两个网络设备之间的两条单向链路构成网络设备之间的IP链路，两条单向链路配置的网络资源是不一样的，即IP链路是非对称链路。通过这样的方法，不仅为各单向链路分别配置的单向链路中两个传输端口的带宽资源是与各单向链路中两个端口所需的带宽资源相匹配的，而且为各单向链路配置的光传输资源是与各单向链路所需的光传输资源相匹配的，从而可以降低带宽资源和光传输资源的浪费。
在一个例子中，单向链路所需的光传输资源的确定方式，包括：根据业务流量需求，确定单向链路所需达到的传输性能指标；根据单向链路所需达到的传输性能指标，确定单向链路所需的光传输资源。
具体地说，根据业务流量需求，可以确定单向链路中两个传输端口的带宽资源和单向链路所需达到的传输性能指标；其中，两个传输端口的带宽资源和单向链路所需达到的传输性能指标统称为光层服务等级(Service Level Agreement，SLA)属性，传输性能指标包括时延指标、丢包率指标、数据吞吐率指标等，且传输性能指标会影响单向链路所需的光传输资源的确定，所以根据单向链路所需达到的传输性能指标，确定单向链路所需的光传输资源。通过这样的方法，可以确定出与单向链路所需达到的传输性能指标匹配的单向链路所需的光传输资源，使得确定的单向链路所需的光传输资源更加合理。
本实施例中，SDN控制器根据业务流量需求，确定用于传输业务流量的各单向链路所需的网络资源；为各单向链路分别配置网络资源。由于各单向链路之间是独立的，所以可以为各单向链路分别配置网络资源，且配置的网络资源是与各单向链路传输业务流量所需的网络资源相匹配的，从而可以降低网络资源的浪费，提高网络资源的利用率。
本申请的第二实施例涉及一种资源配置方法，第二实施例与第一实施例大致相同，主要区别之处在于：还会调整配置给单向链路中两个传输端口的带宽资源。具体流程图如图2所示。
步骤201，根据业务流量需求，确定用于传输业务流量的各单向链路所需的网络资源；其中，网络资源包括单向链路中两个传输端口的带宽资源和单向链路所需的光传输资源。
步骤202，为各单向链路分别配置网络资源。
步骤201-202与第一实施例中的步骤101-102类似，在此不再赘述。
在一个例子中，单向链路所需的光传输资源的确定方式，包括：根据业务流量需求，确定单向链路所需达到的传输性能指标；根据单向链路所需达到的传输性能指标，确定单向链路所需的光传输资源。
步骤203，监控各单向链路的带宽资源的利用率。
具体地说，SDN控制器利用其包含的SDN应用程序(Software Defined Network  Application，SDN APP)监控各单向链路的带宽资源的利用率，SDN APP可以实时监控各单向链路的带宽资源的利用率，也可以按照预设周期监控各单向链路的带宽资源的利用率，预设周期根据实际需要进行设定，本实施例不做具体限定。
步骤204，根据带宽资源的利用率和与单向链路关联的策略中的预设阈值的比较结果，得到相应的指示。
具体地说，网络运维人员预先在SDN控制器的SDN APP中存储多种策略，且运维人员可以根据实际需要定义策略的内容，本实施例中策略的内容包括预设阈值和网络资源调整目标。SDN APP根据单向链路的不同需求，将不同的单向链路与策略之间建立关联关系，一条单向链路可以与一个策略之间建立关联关系，也可以与多条策略之间建立关联关系，并将建立的关联关系和策略存储于SDN APP本地。当SDN APP监控到各单向链路的带宽资源的利用率之后，查询本地与单向链路关联的策略，并将监控的带宽资源的利用率与策略中的预设阈值进行比较得到比较结果，并根据比较结果得到相应的指示。
在一个例子中，根据带宽资源的利用率和与单向链路关联的策略中的预设阈值的比较结果，得到相应的指示，包括：若带宽资源的利用率大于策略中的预设高阈值，得到触发策略中的增加网络资源的网络资源调整目标的指示；若带宽资源的利用率小于策略中的预设低阈值，得到触发策略中的减少网络资源的网络资源调整目标的指示。
具体地说，本实施例中与单向链路关联的策略中的内容包括预设高阈值、预设低阈值、与预设高阈值对应的是增加网络资源的网络资源调整目标、与预设低阈值对应的是减少网络资源的网络资源调整目标。若带宽资源的利用率大于与单向链路关联的策略中的预设高阈值，而与预设高阈值对应的是增加网络资源的网络资源调整目标，则得到触发策略中的增加网络资源的网络资源调整目标的指示，若带宽资源的利用率小于策略中的预设低阈值，而与预设低阈值对应的是减少网络资源的网络资源调整目标，则得到触发策略中的减少网络资源的网络资源调整目标的指示。若带宽资源的利用率不小于预设低阈值且不大于预设高阈值，则得到继续监控单向链路的带宽资源的利用率的指示。通过这样的方法，若带宽资源的利用率大于与单向链路关联的策略中的预设高阈值，说明此时单向链路承载的业务流量较多，网络资源可能存在不够用的情况，则得到触发策略中的增加网络资源的网络资源调整目标的指示；若带宽资源的利用率小于与单向链路关联的策略中的预设低阈值，说明此时单向链路承载的业务流量较少，网络资源存在多余的情况，则得到触发策略中的增加网络资源的网络资源调整目标的指示，即可以根据带宽资源的利用率与预设高阈值的关系以及带宽资源的利用率与预设低阈值之间的关系触发合理的指示，从而进行合理的网络资源调整。
在一个例子中，若带宽资源的利用率大于与单向链路关联的策略中的预设高阈值，以及若带宽资源的利用率小于策略中的预设低阈值，还会产生告警信息。
步骤205，若指示为触发策略中的网络资源调整目标，根据网络资源调整目标调整配置给单向链路中两个传输端口的带宽资源。
具体地说，若指示为触发策略中的网络资源调整目标，SDN APP向SDN控制器中的层次控制器(Hierarchy Controller，H-controller)发送网络资源调整请求，其中，网络资源调整请求中包括单向链路的首尾两个传输端口和网络资源调整目标，H-controller向协议控制器(Internet Protocol controller，IP-controller)发送网络资源调整请求，IP-controller根据网络资源调整请求调整配置给单向链路中两个传输端口的带宽资源，单向链路所在的网络设备根据 配置调整两个传输端口的带宽资源。在一个例子中，网络设备将调整结果依次通过IP-controller、H-controller返回给SDN APP，SDN APP将调整结果进行记录，并进行可视化呈现。其中，若指示为触发策略中的增加网络资源的网络资源调整目标，则根据网络资源调整目标增加配置给单向链路中两个传输端口的带宽资源，更好的满足业务流量需求；若指示为触发策略中的减少网络资源的网络资源调整目标，则根据网络资源调整目标减少配置给单向链路中两个传输端口的带宽资源，进一步降低带宽资源的浪费，提高网络资源的利用率。
在一个例子中，策略中还包括传输端口的带宽资源调整幅度；根据网络资源调整目标调整配置给单向链路中两个传输端口的带宽资源，包括：根据网络资源调整目标和传输端口的带宽资源调整幅度调整配置给单向链路中两个传输端口的带宽资源。具体地说，SDN APP向SDN控制器中的H-controller发送网络资源调整请求，其中，网络资源调整请求中包括单向链路的首尾两个传输端口、网络资源调整目标和传输端口的带宽资源调整幅度。由于策略中包括传输端口的带宽资源调整幅度，可以直接根据网络资源调整目标和传输端口的带宽资源调整幅度调整配置给单向链路中两个传输端口的带宽资源，使得传输端口的带宽资源调整速度较快。
本实施例中，SDN控制器可以根据带宽资源的利用率的变化调整配置给单向链路的网络资源，使业务流量需求与配置给单向链路中两个传输端口的带宽资源更加匹配，更好的满足业务流量需求或进一步降低带宽资源的浪费，提高网络资源的利用率。
本申请的第三实施例涉及一种资源配置方法，第三实施例与第二实施例大致相同，主要区别之处在于：还会调整单向链路的光传输资源。具体流程图如图3所示。
步骤301，根据业务流量需求，确定用于传输业务流量的各单向链路所需的网络资源；其中，网络资源包括单向链路中两个传输端口的带宽资源和单向链路所需的光传输资源。
步骤302，为各单向链路分别配置网络资源。
步骤303，监控各单向链路的带宽资源的利用率。
步骤304，根据带宽资源的利用率和与单向链路关联的策略中的预设阈值的比较结果，得到相应的指示。
步骤301-304与第二实施例中的步骤201-204类似，在此不再赘述。
在一个例子中，单向链路所需的光传输资源的确定方式，包括：根据业务流量需求，确定单向链路所需达到的传输性能指标；根据单向链路所需达到的传输性能指标，确定单向链路所需的光传输资源。
步骤305，若指示为触发策略中的网络资源调整目标，根据网络资源调整目标调整配置给单向链路的光传输资源和单向链路中两个传输端口的带宽资源。
具体地说，SDN APP向SDN控制器中的H-controller发送网络资源调整请求，其中，网络资源调整请求中包括单向链路的首尾两个传输端口、光层路径。H-controller向optical-controller发送网络资源调整请求，光学控制器(optical-controller)根据网络资源调整请求调整配置给单向链路的光传输资源，与单向链路对应的光层路径上的光层设备根据配置调整光传输资源；且H-controller向IP-controller发送网络资源调整请求，IP-controller根据网络资源调整请求调整配置给单向链路中两个传输端口的带宽资源，单向链路所在的网络设备根据配置调整两个传输端口的带宽资源。在一个例子中，网络设备将调整结果依次通过IP-controller、H-controller返回给SDN APP，SDN APP将调整结果进行记录，并进行可视化 呈现；和/或光层设备将调整结果依次通过optical-controller、H-controller返回给SDN APP，SDN APP将调整结果进行记录，并进行可视化呈现。其中，若指示为触发策略中的增加网络资源的网络资源调整目标，则根据网络资源调整目标增加配置给单向链路的光传输资源和单向链路中两个传输端口的带宽资源，更好的满足业务流量需求；若指示为触发策略中的减少网络资源的网络资源调整目标，则根据网络资源调整目标减少配置给单向链路的光传输资源和单向链路中两个传输端口的带宽资源，进一步降低带宽资源和光传输资源的浪费，提高网络资源的利用率。
在一个例子中，策略中还包括传输端口的带宽资源调整幅度；根据网络资源调整目标调整配置给单向链路的光传输资源和单向链路中两个传输端口的带宽资源，包括：根据网络资源调整目标和传输端口的带宽资源调整幅度调整配置给单向链路中两个传输端口的带宽资源。由于策略中包括传输端口的带宽资源调整幅度，可以直接根据传输端口的带宽资源调整幅度调整配置给单向链路中两个传输端口的带宽资源，使得传输端口的带宽资源调整速度较快。
本实施例中，SDN控制器可以根据带宽资源的利用率的变化调整配置给单向链路的网络资源，使业务流量需求与配置给单向链路中两个传输端口的带宽资源和配置给单向链路的光传输资源均更加匹配，更好的满足业务流量需求，或进一步降低带宽资源和光传输资源的浪费，提高网络资源的利用率。
本申请的第四实施例涉及一种资源配置装置，如图4所示，包括：
确定模块401，用于根据业务流量需求，确定用于传输业务流量的各单向链路所需的网络资源。
配置模块402，为各单向链路分别配置网络资源。
在一个例子中，网络资源包括单向链路中两个传输端口的带宽资源和单向链路所需的光传输资源。
在一个例子中，单向链路所需的光传输资源的确定方式，包括：根据业务流量需求，确定单向链路所需达到的传输性能指标；根据单向链路所需达到的传输性能指标，确定单向链路所需的光传输资源。
在一个例子中，资源配置装置还包括监控模块、指示模块、调整模块，监控模块用于监控各单向链路的带宽资源的利用率；指示模块用于根据带宽资源的利用率和与单向链路关联的策略中的预设阈值的比较结果，得到相应的指示；调整模块用于若指示为触发策略中的网络资源调整目标，根据网络资源调整目标调整配置给单向链路中两个传输端口的带宽资源。
在一个例子中，根据网络资源调整目标调整配置给单向链路中两个传输端口的带宽资源，包括：根据网络资源调整目标调整配置给单向链路的光传输资源和单向链路中两个传输端口的带宽资源。
在一个例子中，根据带宽资源的利用率和与所述单向链路关联的策略中的预设阈值的比较结果，得到相应的指示，包括：若带宽资源的利用率大于策略中的预设高阈值，得到触发策略中的增加网络资源的网络资源调整目标的指示；若带宽资源的利用率小于策略中的预设低阈值，得到触发策略中的减少网络资源的网络资源调整目标的指示。
在一个例子中，策略中还包括传输端口的带宽资源调整幅度；根据网络资源调整目标调整配置给单向链路中两个传输端口的带宽资源，包括：根据网络资源调整目标和传输端口的带宽资源调整幅度调整配置给单向链路中两个传输端口的带宽资源。
不难发现，本实施例为与第一实施例相对应的装置实施例，本实施例可与第一实施例互相配合实施。第一实施例中提到的技术细节在本实施例中依然有效，为了减少重复，这里不再赘述。相应地，本实施例中提到的技术细节也可应用在第一实施例中。
值得一提的是，本实施例中所涉及到的各模块均为逻辑模块，在实际应用中，一个逻辑单元可以是一个物理单元，也可以是一个物理单元的一部分，还可以以多个物理单元的组合实现。此外，为了突出本申请的创新部分，本实施例中并没有将与解决本申请所提出的技术问题关系不太密切的单元引入，但这并不表明本实施例中不存在其它的单元。
本申请第五实施例涉及一种服务器，如图5所示，包括至少一个处理器502；以及，与至少一个处理器502通信连接的存储器501；其中，存储器501存储有可被至少一个处理器502执行的指令，指令被至少一个处理器502执行，以使至少一个处理器502能够执行上述资源配置方法的实施例。
其中，存储器和处理器采用总线方式连接，总线可以包括任意数量的互联的总线和桥，总线将一个或多个处理器和存储器的各种电路连接在一起。总线还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路连接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口在总线和收发机之间提供接口。收发机可以是一个元件，也可以是多个元件，比如多个接收器和发送器，提供用于在传输介质上与各种其他装置通信的单元。经处理器处理的数据通过天线在无线介质上进行传输，进一步，天线还接收数据并将数据传送给处理器。
处理器负责管理总线和通常的处理，还可以提供各种功能，包括定时，外围接口，电压调节、电源管理以及其他控制功能。而存储器可以被用于存储处理器在执行操作时所使用的数据。
本申请第六实施例涉及一种计算机可读存储介质，存储有计算机程序。计算机程序被处理器执行时实现上述方法实施例。
即，本领域技术人员可以理解，实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域的普通技术人员可以理解，上述各实施例是实现本申请的具体实施例，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。

Claims (10)

  1. 一种资源配置方法，包括：
    根据业务流量需求，确定用于传输所述业务流量的各单向链路所需的网络资源；
    为各所述单向链路分别配置所述网络资源。
  2. 根据权利要求1所述的资源配置方法，其中，所述网络资源包括所述单向链路中两个传输端口的带宽资源和所述单向链路所需的光传输资源。
  3. 根据权利要求2所述的资源配置方法，其中，所述单向链路所需的光传输资源的确定方式，包括：
    根据所述业务流量需求，确定所述单向链路所需达到的传输性能指标；
    根据所述单向链路所需达到的传输性能指标，确定所述单向链路所需的光传输资源。
  4. 根据权利要求2或3所述的资源配置方法，其中，在所述为各所述单向链路分别配置所述网络资源之后，还包括：
    监控各所述单向链路的带宽资源的利用率；
    根据所述带宽资源的利用率和与所述单向链路关联的策略中的预设阈值的比较结果，得到相应的指示；
    若所述指示为触发所述策略中的网络资源调整目标，根据所述网络资源调整目标调整配置给所述单向链路中两个传输端口的带宽资源。
  5. 根据权利要求4所述的资源配置方法，其中，所述根据所述网络资源调整目标调整配置给所述单向链路中两个传输端口的带宽资源，包括：
    根据所述网络资源调整目标调整配置给所述单向链路的所述光传输资源和所述单向链路中两个传输端口的带宽资源。
  6. 根据权利要求4或5所述的资源配置方法，其中，所述根据所述带宽资源的利用率和与所述单向链路关联的策略中的预设阈值的比较结果，得到相应的指示，包括：
    若所述带宽资源的利用率大于所述策略中的预设高阈值，得到触发所述策略中的增加网络资源的网络资源调整目标的指示；
    若所述带宽资源的利用率小于所述策略中的预设低阈值，得到触发所述策略中的减少网络资源的网络资源调整目标的指示。
  7. 根据权利要求4所述的资源配置方法，其中，所述策略中还包括传输端口的带宽资源调整幅度；所述根据所述网络资源调整目标调整配置给所述单向链路中两个传输端口的带宽资源，包括：
    根据所述网络资源调整目标和所述传输端口的带宽资源调整幅度调整配置给所述单向链路中两个传输端口的带宽资源。
  8. 一种资源配置装置，包括：
    确定模块，用于根据业务流量需求，确定用于传输所述业务流量的各单向链路所需的网络资源；
    配置模块，为各所述单向链路分别配置所述网络资源。
  9. 一种服务器，包括：
    至少一个处理器；以及，
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行如权利要求1至7中任一所述的资源配置方法。
  10. 一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至7中任一项所述的资源配置方法。
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