WO2016107368A1 - 一种ip网络中业务带宽确定方法及网络设备 - Google Patents

一种ip网络中业务带宽确定方法及网络设备 Download PDF

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WO2016107368A1
WO2016107368A1 PCT/CN2015/096301 CN2015096301W WO2016107368A1 WO 2016107368 A1 WO2016107368 A1 WO 2016107368A1 CN 2015096301 W CN2015096301 W CN 2015096301W WO 2016107368 A1 WO2016107368 A1 WO 2016107368A1
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bandwidth
port
service
cir
network device
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French (fr)
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吴军
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华为技术有限公司
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  • the present invention relates to the field of communications technologies, and in particular, to a method and a network device for determining a service bandwidth in an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the first one is to increase the bandwidth capacity of each node in the IP network to ensure that each service occupies sufficient bandwidth. This solution will reduce the overall bandwidth utilization of the network and the network construction cost is too high.
  • the second method is to distinguish different service flows in the bearer network, provide different bandwidth allocation mechanisms, different service levels, and different forwarding policies for different service flows, and improve end-to-end through refined management control of service flows. Network bandwidth utilization.
  • the IP network needs to provide end-to-end service bandwidth guarantee from the access ring and the aggregation ring to the core ring.
  • the main method is to use different tunnels for different services. Configure the end-to-end Committed Information Rate (CIR) bandwidth for the tunnel.
  • CIR Committed Information Rate
  • Configure CIR bandwidth for the 2G, 3G, 4G, and enterprise leased line services Configure the CIR bandwidth of the tunnel according to the access ring, aggregation ring, and core ring level.
  • the 2G service is in the access ring and aggregation ring.
  • the CIR bandwidth of the core ring is 3M.
  • the CIR bandwidth of the 3G service in the access ring, the aggregation ring, and the core ring is 30M.
  • the CIR bandwidth of the 4G service in the access ring, aggregation ring, and core ring is 80M.
  • Configure the CIR bandwidth of the access ring, aggregation ring, and core ring based on the bandwidth purchased by the customer.
  • the reserved bandwidth of each network port is configured according to the convergence ratio of 4G, and it is assumed that 50% of the physical bandwidth of the network port in the access ring is used as the reserved bandwidth, and 67% of the physical bandwidth of the network port in the aggregation ring is used as the reserved bandwidth. 100% of the physical bandwidth of the network port in the core ring is used as the reserved bandwidth.
  • the CIR bandwidth of the new service is represented by B1
  • the reserved bandwidth of the network port is represented by B.
  • the second solution is applicable to the scenario of carrying a single service. If the ports in the access ring, the aggregation ring, and the core ring carry services with different convergence attributes, the access ring, the aggregation ring, and the core ring are configured in a 1:1:1 configuration.
  • the CIR bandwidth of each service and the reserved bandwidth of each service according to the convergence ratio of the 4G service may result in low bandwidth utilization of each network port. Assume that 50% of the physical bandwidth of the network port in the access ring is used as the reserved bandwidth, and 67% of the network ports in the aggregation ring are used as the reserved bandwidth.
  • the bandwidth utilization of the access ring and the aggregation ring is lower. 100% of the network port is used as the reserved bandwidth.
  • the physical bandwidth of the network ports in the aggregation ring and the core ring is increased. This will result in waste of network port bandwidth resources in the aggregation ring and the core ring.
  • the embodiment of the invention provides a method for determining a service bandwidth in an IP network and a network device, which are used for Improve the port bandwidth resource utilization of the network devices in the subsystems of each level in the IP network, and meet the requirements of carrying services with different convergence attributes on the same port.
  • a method for determining a service bandwidth in an internet protocol IP network including:
  • the network device allocates a reserved bandwidth for the service according to the CIR bandwidth of the first port according to the determined service, including:
  • the network device calculates a difference between a total reserved bandwidth of the first port and a reserved bandwidth allocated by the first port, and determines that the obtained difference is greater than or equal to a CIR bandwidth of the service at the first port. And allocating a reserved bandwidth for the service according to the CIR bandwidth of the service at the first port.
  • the network device determines that the obtained difference is greater than or equal to the CIR bandwidth of the service at the first port, The method further includes: before the CIR bandwidth of the first port is reserved for the service, the method further includes:
  • the network device calculates a sum of a CIR bandwidth of the first port and a reserved bandwidth allocated by the first port, and determines that the obtained sum value is not greater than a bandwidth availability threshold of the first port. value.
  • the IP network includes an access ring, an aggregation ring, and a core ring.
  • the network device acquires the service class
  • the committed information rate CIR bandwidth corresponding to the type including:
  • the network device acquires a CIR bandwidth of the committed information rate corresponding to the service type, including:
  • the network device acquires a corresponding CIR bandwidth of the service type in the subsystem to which the second port belongs, and the subsystem to which the second port belongs is an access ring;
  • the network device acquires the CIR bandwidth of the committed information rate corresponding to the service type, including:
  • the network device acquires a corresponding CIR bandwidth of the service type in the subsystem to which the third port belongs, and the subsystem to which the third port belongs is an aggregation ring.
  • the bandwidth convergence ratio preset by the service type is configured by a network management system or a software-defined network SDN centralized controller.
  • a network device in an internet protocol IP network including:
  • a determining module configured to determine a service type to which the service requesting the bandwidth resource of the first port belongs, obtain a bandwidth convergence ratio corresponding to the service type preset, and obtain a commitment information rate CIR bandwidth corresponding to the service type;
  • An allocating module configured to determine, according to the bandwidth convergence ratio and the CIR bandwidth, a CIR bandwidth of the service at the first port, where the CIR bandwidth of the first port is the service according to the determined service Allocate reserved bandwidth.
  • the allocation module is specifically configured to:
  • the allocation module is further configured to:
  • the service is calculated according to the service, before the CIR bandwidth of the first port is reserved for the service. a sum of a CIR bandwidth of the first port and a reserved bandwidth allocated by the first port, and determining that the obtained sum value is not greater than a bandwidth availability threshold of the first port.
  • the IP network includes an access ring, an aggregation ring, and a core ring.
  • the determining module is specifically configured to:
  • the determining module is specifically configured to:
  • the determining module is specifically configured to:
  • the bandwidth convergence ratio preset corresponding to the service type is configured by a network management system or a software-defined network SDN centralized controller.
  • the bandwidth convergence ratio preset by the corresponding service type is obtained, and the service type is obtained. And corresponding to the CIR bandwidth of the committed information, determining the CIR bandwidth of the service at the first port according to the obtained bandwidth convergence ratio and the CIR bandwidth, and allocating the CIR bandwidth of the service to the service according to the determined CIR bandwidth of the service.
  • the bandwidth can be allocated to the service according to the convergence attribute of the service, and the bandwidth resource of each layer subsystem can be planned according to the bandwidth resource required by the service, thereby reducing the network construction cost.
  • the end-to-end convergence planning can be implemented by the bandwidth convergence ratio corresponding to the preset service type, and the operation and maintenance cost of the bandwidth planning is reduced.
  • the default is not The same bandwidth convergence ratio can meet the requirements of carrying services with different convergence attributes on the same port.
  • FIG. 1 is a schematic diagram of an IP network architecture
  • FIG. 2 is a schematic flowchart of a detailed method for determining a service bandwidth of a network device according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an MPLS/MPLS-TP network according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another network device according to an embodiment of the present invention.
  • an embodiment of the present invention provides a method for determining a service bandwidth in an IP network, including:
  • Step 201 The network device determines a service type to which the service of the bandwidth resource of the first port belongs, and obtains a bandwidth convergence ratio corresponding to the service type preset and acquires a CIR bandwidth corresponding to the service type.
  • the IP network may be a Multi-Protocol Label Switching (MPLS)/Multi-Protocol Label Switching Transport Profile (MPLS-TP) network.
  • MPLS Multi-Protocol Label Switching
  • MPLS-TP Multi-Protocol Label Switching Transport Profile
  • the IP network includes the following subsystems: an access ring, an aggregation ring, and a core ring.
  • the network device obtains a preset CIR bandwidth corresponding to the determined service type, and determines a CIR bandwidth of the first port according to the CIR bandwidth and the bandwidth convergence ratio;
  • the network device obtains a corresponding CIR bandwidth of the corresponding service type in the subsystem to which the second port belongs, and the subsystem to which the second port belongs is an access ring, according to the CIR bandwidth and The bandwidth convergence ratio determines the CIR bandwidth of the first port;
  • the network device obtains the corresponding CIR bandwidth of the corresponding service type in the subsystem to which the third port belongs, and the subsystem to which the third port belongs is an aggregation ring, according to the CIR bandwidth and bandwidth.
  • the convergence ratio determines the CIR bandwidth of the first port.
  • the CIR bandwidth corresponding to the service type is preset in each network device of the access ring, the aggregation ring, and the core ring, and the preset CIR bandwidth is the CIR bandwidth of the access ring port, and the network device according to the The preset CIR bandwidth and the obtained bandwidth convergence ratio determine the CIR bandwidth of the first port.
  • the bandwidth convergence ratio preset by the corresponding service type is less than or equal to 1.
  • the correspondence between the preset service type and the bandwidth convergence ratio in the network device is that the bandwidth convergence ratio preset for the service type that needs to be converged is less than 1; and the bandwidth convergence ratio preset for the service type that does not need to be converged is equal to 1.
  • the bandwidth convergence ratio preset for the 3G service and the 4G service is less than 1; the bandwidth convergence ratio preset for the 2G service and the enterprise dedicated line service is equal to 1.
  • the correspondence between the preset service type, the port or the subsystem to which the port belongs and the bandwidth convergence ratio in the network device is a specific implementation.
  • the network device determines the service type of the service is not the content of the present invention.
  • the service data carries the service identifier, and the network device determines the service to which the service belongs according to the correspondence between the service identifier and the service type. Types of.
  • Step 202 The network device determines the CIR bandwidth of the service at the first port according to the obtained bandwidth convergence ratio and the CIR bandwidth, and allocates a reserved bandwidth for the service according to the determined CIR bandwidth of the service.
  • the network device multiplies the acquired CIR bandwidth by a bandwidth convergence ratio preset for the service type, and uses the obtained result as the CIR bandwidth of the service at the first port.
  • the network device calculates a difference between the total reserved bandwidth of the first port and the reserved bandwidth allocated by the first port, and if the determined difference is greater than or equal to the CIR bandwidth of the service at the first port, according to the service
  • the CIR bandwidth of the first port allocates a reserved bandwidth for the service; if the determined difference is smaller than the CIR bandwidth of the service at the first port, the reserved bandwidth is reserved for the service at the first port.
  • the total reserved bandwidth of the first port is the physical bandwidth of the first port.
  • the network device determines that the obtained difference is greater than or equal to the CIR bandwidth of the first port, and calculates a sum of the CIR bandwidth of the service at the first port and the reserved bandwidth allocated by the first port, if The obtained sum value is not greater than the bandwidth availability threshold of the first port, and the reserved bandwidth is allocated for the service according to the CIR bandwidth of the service at the first port; otherwise, the first port is denied to reserve the service. bandwidth.
  • the network controller system or a software-defined network (Software Defined Network, SDN) centralized controller can configure service type and bandwidth convergence for each port in each of the access ring, the aggregation ring, and the core ring. Corresponding relationship of the ratio; or, the network device configures the correspondence between the service type and the bandwidth convergence ratio to one network device in each subsystem (access ring, aggregation ring, and core ring), and obtains the service type in each subsystem. A network device whose bandwidth converges to this configuration information configures the configuration information to other network devices in the subsystem.
  • SDN Software Defined Network
  • the aggregation ring network side port determines that the service type of the service requesting the bandwidth resource belongs to the 4G service, and determines the access ring and the convergence ring preset for the corresponding 4G service.
  • the CIR bandwidth ratio is 4:3.
  • the CIR bandwidth allocated to the service by the access ring network side port is 80 megabits (M)
  • the CIR bandwidth allocated to the service by the aggregation ring network side port is 60 M
  • the port determines that the service type of the service requesting the bandwidth resource belongs to the 4G service, and determines that the CIR bandwidth ratio of the aggregation ring and the core ring preset by the corresponding 4G service is 3:2, and the CIR of the aggregation ring network side port is allocated to the service.
  • Core bandwidth network is 60M
  • the CIR bandwidth allocated by the side port to the service is 40M.
  • the bandwidth convergence ratio preset by the corresponding service type is obtained.
  • the service allocates the reserved bandwidth, so that the bandwidth can be reserved for the service according to the convergence attribute of the service, and the bandwidth resource planning of each layer subsystem can be performed according to the bandwidth resource required by the service, which is beneficial to reducing the network equipment in the aggregation ring and the core ring.
  • Bandwidth planning greatly reduces the deployment cost of network device ports in the aggregation ring and core ring, and reduces network construction costs.
  • the end-to-end convergence planning can be implemented by using the bandwidth convergence ratio corresponding to the service type.
  • the service bandwidths with different convergence attributes are preset with different bandwidth convergence ratios, which can satisfy the services with different convergence attributes on the same port.
  • the demand reduces the operation and maintenance cost of bandwidth planning.
  • the embodiment of the present invention further provides a network device in an IP network, which is used to implement the service bandwidth determining method in the IP network shown in FIG. 2 of the present invention.
  • the network device mainly includes :
  • a determining module 401 configured to determine a service type to which the service requesting the bandwidth resource of the first port belongs, obtain a bandwidth convergence ratio corresponding to the service type preset, and obtain a commitment information rate CIR bandwidth corresponding to the service type;
  • the allocating module 402 is configured to determine, according to the bandwidth convergence ratio and the CIR bandwidth, a CIR bandwidth of the service at the first port, according to the determined CIR bandwidth of the service at the first port, The service allocates reserved bandwidth.
  • the IP network can be an MPLS/MPLS-TP network.
  • the IP network includes the following subsystems: an access ring, an aggregation ring, and a core ring.
  • the determining module is specifically configured to:
  • the determining module is specifically configured to:
  • the determining module is specifically configured to:
  • the distribution module is specifically applicable to:
  • the allocation module can also be used to:
  • the service is calculated according to the service, before the CIR bandwidth of the first port is reserved for the service. a sum of a CIR bandwidth of the first port and a reserved bandwidth allocated by the first port, and determining that the obtained sum value is not greater than a bandwidth availability threshold of the first port.
  • the allocating module multiplies the CIR bandwidth acquired by the determining module by the bandwidth convergence ratio preset for the service type, and uses the obtained result as the CIR bandwidth of the service in the subsystem to which the first port belongs.
  • the bandwidth convergence ratio is less than or equal to 1.
  • the correspondence between the preset service type and the bandwidth convergence ratio in the network device is that the bandwidth convergence ratio preset for the service type that needs to be converged is less than 1; and the bandwidth convergence ratio preset for the service type that does not need to be converged is equal to 1.
  • the correspondence between the preset service type, the port or the subsystem to which the port belongs and the bandwidth convergence ratio in the network device is a specific implementation.
  • the total reserved bandwidth of the first port may be a physical bandwidth of the first port.
  • the bandwidth convergence ratio preset corresponding to the service type is configured by the network management system or the SDN centralized controller.
  • the embodiment of the present invention further provides a network device in another IP network, which is used to implement the service bandwidth determining method in the IP network shown in FIG. 2 of the present invention.
  • the network device includes The processor 501, the memory 502, and the communication interface 503, the processor 501, the memory 502, and the communication interface 503 are connected to each other through a bus 504.
  • the bus 504 may be a peripheral component interconnect (PCI) bus or an extended industry standard. Extended industry standard architecture (EISA) bus.
  • PCI peripheral component interconnect
  • EISA Extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 5, but it does not mean that there is only one bus or one type of bus.
  • the memory 502 is configured to store a program.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 502 may include a random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage.
  • the communication interface 503 is used to communicate with other devices and can also be used to receive service requests.
  • the processor 501 executes the program stored in the memory 502, and is used to implement the method for determining the service bandwidth in the IP network provided by the embodiment of the present invention, including:
  • the IP network can be an MPLS/MPLS-TP network.
  • the IP network includes the following subsystems: an access ring, an aggregation ring, and a core ring.
  • the processor 501 acquires the corresponding service. Type the preset CIR bandwidth, and determine the CIR bandwidth of the first port according to the CIR bandwidth and the bandwidth convergence ratio;
  • the processor 501 acquires a CIR bandwidth corresponding to the service type in the subsystem to which the second port belongs, and the subsystem to which the second port belongs is an access ring, according to the acquired The CIR bandwidth and the bandwidth convergence ratio determine a CIR bandwidth of the first port;
  • the processor 501 acquires the CIR bandwidth of the service type in the subsystem to which the third port belongs, and the subsystem to which the third port belongs is an aggregation ring, according to the acquired The CIR bandwidth and the bandwidth convergence ratio determine the CIR bandwidth of the first port.
  • the processor 501 calculates a difference between the total reserved bandwidth of the first port and the reserved bandwidth allocated by the first port, and determines that the obtained difference is greater than or equal to a CIR bandwidth of the service at the first port, Allocating a reserved bandwidth for the service according to the CIR bandwidth of the service at the first port.
  • the processor 501 determines that the obtained difference is greater than or equal to the CIR bandwidth of the service, the CIR bandwidth of the first port is reserved for the service according to the service, and the calculation is performed. And determining, by the sum of the CIR bandwidth of the first port and the reserved bandwidth allocated by the first port, that the obtained sum value is not greater than a bandwidth availability threshold of the first port.
  • the processor 501 multiplies the acquired CIR bandwidth of the service by a bandwidth convergence ratio preset for the service type, and uses the obtained result as the CIR bandwidth of the service at the first port.
  • the bandwidth convergence ratio is less than or equal to 1.
  • the memory 502 can also be used to save a correspondence between a preset service type and a bandwidth convergence ratio.
  • the bandwidth convergence ratio preset for the service type that needs to be converged is less than 1; and the bandwidth convergence ratio preset for the service type that does not need to be converged is equal to 1.
  • the correspondence between the preset service type, the port or the subsystem to which the port belongs and the bandwidth convergence ratio in the network device is a specific implementation.
  • the total reserved bandwidth of the first port may be a physical bandwidth of the first port.
  • the bandwidth convergence ratio preset by the service type is determined by the network management system or the SDN. Centralized controller configuration.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明公开了一种IP网络中业务带宽确定方法及网络设备，用以提高IP网络中每个层级的子系统中的网络设备的端口带宽资源利用率，满足在同一端口承载具有不同收敛属性的业务的需求。该方法为：网络设备确定请求第一端口的带宽资源的业务所属的业务类型，并获取对应所述业务类型预设的带宽收敛比以及获取所述业务类型对应的承诺信息速率CIR带宽；所述网络设备按照所述带宽收敛比以及所述CIR带宽，确定所述业务在所述第一端口的CIR带宽，根据确定的所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。

Description

一种IP网络中业务带宽确定方法及网络设备
本申请要求于2014年12月31日提交中国专利局、申请号为201410856396.X、发明名称为“一种IP网络中业务带宽确定方法及网络设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，尤其涉及一种互联网协议(Internet Protocol，简称IP)网络中业务带宽确定方法及网络设备。
背景技术
如图1所示的IP网络架构中，除了承载第二代移动通信(2nd Generation，简称2G)、第三代移动通信(3rd Generation，简称3G)、第四代移动通信(4rd Generation，缩写：4G)网络、无线局域网(Wireless Local Area Networks，简称WLAN)和宽带上行等业务外，还承载有企业专线等业务，各业务之间竞争IP网络的带宽资源，以保证业务能够运行。
为了保证业务的传输质量，有以下两种传统的解决方案：
第一种：通过扩大IP网络中各节点的带宽能力,保证各业务占用足够的带宽，该方案会造成网络整体带宽利用率降低，网络建设成本过高。
第二种，在承载网络中区分不同的业务流，为不同的业务流提供不同的带宽分配机制、不同的业务等级以及不同的转发策略，通过对业务流的精细化管理控制，提高端对端网络带宽利用率。
该第二种解决方案中，需要IP网络从接入环、汇聚环到核心环提供端到端的业务带宽保证，主要方法为不同的业务采用不同的隧道(Tunnel)承 载，为隧道配置端到端的承诺信息速率(Committed Information Rate，简称CIR)带宽。
对2G、3G、4G和企业专线业务配置CIR带宽时，按照接入环、汇聚环和核心环的层次以1:1:1配置隧道的CIR带宽，例如2G业务在接入环、汇聚环和核心环的CIR带宽均为3M，3G业务在接入环、汇聚环和核心环的CIR带宽均为30M，4G业务在接入环、汇聚环和核心环的CIR带宽均为80M，企业专线业务根据客户购买的带宽配置接入环、汇聚环和核心环的CIR带宽。
并且，按照4G的收敛比配置各网络端口的预留带宽，假设接入环中网络端口物理带宽的50％用作预留带宽，汇聚环中网络端口物理带宽的67％用作预留带宽，核心环中网络端口物理带宽的100％用作预留带宽。
假设新的业务的CIR带宽用B1表示，网络端口的预留带宽用B表示，该网络端口已经配置的业务的CIR带宽之和用B2表示，则当满足关系：B1<＝B-B2时，则表示该网络端口可用的物理带宽可以满足该新的业务的需求，否则，则该网络端口中可用的物理带宽不能满足该新的业务的需求。
第二种解决方案适用于承载单一业务的场景，若接入环、汇聚环和核心环中的端口承载具有不同收敛属性的业务，接入环、汇聚环和核心环按照1:1:1配置各业务的CIR带宽，且按照4G业务的收敛比规划各业务的预留带宽，可能会导致各网络端口带宽利用率低。假设接入环中网络端口物理带宽的50％用作预留带宽，汇聚环中网络端口的67％用作预留带宽，则接入环和汇聚环的带宽利用率较低；假设接入环中网络端口的100％用作预留带宽，规划时需要提高汇聚环和核心环中网络端口的物理带宽，将会造成汇聚环和核心环中网络端口带宽资源的浪费。
发明内容
本发明实施例提供一种IP网络中业务带宽确定方法及网络设备，用以 提高IP网络中每个层级的子系统中的网络设备的端口带宽资源利用率，满足在同一端口承载具有不同收敛属性的业务的需求。
本发明实施例提供的具体技术方案如下：
第一方面，提供了一种互联网协议IP网络中业务带宽确定方法，包括：
网络设备确定请求第一端口的带宽资源的业务所属的业务类型，并获取对应所述业务类型预设的带宽收敛比以及获取所述业务类型对应的承诺信息速率CIR带宽；
所述网络设备按照所述带宽收敛比以及所述CIR带宽，确定所述业务在所述第一端口的CIR带宽，根据确定的所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
结合第一方面，在第一种可能的实现方式中，所述网络设备根据确定的所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽，包括：
所述网络设备计算所述第一端口的总预留带宽与所述第一端口已分配的预留带宽的差，确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
结合第一方面的第一种可能的实现方式，在第二种可能的实现方式中，所述网络设备确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽后，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽之前，所述方法还包括：
所述网络设备计算所述业务在所述第一端口的CIR带宽与所述第一端口已分配的预留带宽的和，确定得到的和值不大于所述第一端口的带宽可用率门限值。
结合第一方面至第二种可能的实现方式，在第三种可能的实现方式中，所述IP网络包括接入环，汇聚环和核心环；
若所述第一端口所属子系统为接入环，所述网络设备获取所述业务类 型对应的承诺信息速率CIR带宽，包括：
所述网络设备获取对应所述业务类型预设的CIR带宽；
若所述第一端口所属子系统为汇聚环，所述网络设备获取所述业务类型对应的承诺信息速率CIR带宽，包括：
所述网络设备获取所述业务类型在第二端口所属子系统中对应的CIR带宽，所述第二端口所属子系统为接入环；
若所述第一端口所属子系统为核心环，所述网络设备获取所述业务类型对应的承诺信息速率CIR带宽，包括：
所述网络设备获取所述业务类型在第三端口所属子系统中对应的CIR带宽，所述第三端口所属子系统为汇聚环。
结合第一方面的第三种可能的实现方式，在第四种可能的实现方式中，所述对应所述业务类型预设的带宽收敛比由网管系统或软件定义网络SDN集中控制器配置。
第二方面，提供了一种互联网协议IP网络中的网络设备，包括：
确定模块，用于确定请求第一端口的带宽资源的业务所属的业务类型，并获取对应所述业务类型预设的带宽收敛比以及获取所述业务类型对应的承诺信息速率CIR带宽；
分配模块，用于按照所述带宽收敛比以及所述CIR带宽，确定所述业务在所述第一端口的CIR带宽，根据确定的所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
结合第二方面，在第一种可能的实现方式中，所述分配模块具体用于：
计算所述第一端口的总预留带宽与所述第一端口已分配的预留带宽的差，确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
结合第二方面的第一种可能的实现方式，在第二种可能的实现方式中，所述分配模块还用于：
确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽后，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽之前，计算所述业务在所述第一端口的CIR带宽与所述第一端口已分配的预留带宽的和，确定得到的和值不大于所述第一端口的带宽可用率门限值。
结合第二方面至第二种可能的实现方式，在第三种可能的实现方式中，所述IP网络包括接入环，汇聚环和核心环；
若所述第一端口所属子系统为接入环，所述确定模块具体用于：
获取对应所述业务类型预设的CIR带宽；
若所述第一端口所属子系统为汇聚环，所述确定模块具体用于：
获取所述业务类型在第二端口所属子系统中对应的CIR带宽，所述第二端口所属子系统为接入环；
若所述第一端口所属子系统为核心环，所述确定模块具体用于：
获取所述业务类型在第三端口所属子系统中对应的CIR带宽，所述第三端口所属子系统为汇聚环。
结合第二方面的第三种可能的实现方式，在第四种可能的实现方式中，所述对应所述业务类型预设的带宽收敛比由网管系统或软件定义网络SDN集中控制器配置。
基于上述技术方案，本发明实施例中，IP网络中的网络设备确定请求第一端口的带宽资源的业务所属的业务类型后，通过获取对应该业务类型预设的带宽收敛比以及获取该业务类型对应的承诺信息速率CIR带宽，按照获取的该带宽收敛比以及该CIR带宽确定该业务在第一端口的CIR带宽，根据确定的该业务在所述第一端口的CIR带宽为该业务分配预留带宽，从而能够按照业务的收敛属性为业务分配预留带宽，能够按照业务需求的带宽资源进行每个层次子系统的带宽资源规划，降低网络建设成本。并且，通过预设业务类型对应的带宽收敛比即可实现对端到端的收敛规划，降低了带宽规划的运维成本。另外，对于具有不同收敛属性的业务类型预设不 同的带宽收敛比，能够满足在同一端口承载具有不同收敛属性的业务的需求。
附图说明
图1为IP网络架构示意图；
图2为本发明实施例中网络设备确定业务带宽的详细方法流程示意图；
图3为本发明实施例中MPLS/MPLS-TP网络架构示意图；
图4为本发明实施例中网络设备结构示意图；
图5为本发明实施例中另一网络设备结构示意图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
如图2所示，本发明实施例提供一种IP网络中业务带宽确定方法，包括：
步骤201：网络设备确定请求第一端口的带宽资源的业务所属的业务类型，并获取对应该业务类型预设的带宽收敛比以及获取该业务类型对应的CIR带宽。
IP网络可以为多协议标签交换(Multi-Protocol Label Switching，简称MPLS)/多协议标签交换-传输架构(Multi-Protocol Label Switching Transport Profile，简称MPLS-TP)网络。
其中，IP网络包括以下子系统：接入环、汇聚环和核心环。
在一个具体实施中，若网络设备的第一端口所属子系统为接入环，网 络设备获取对应确定的业务类型预设的CIR带宽，根据该CIR带宽和带宽收敛比确定第一端口的CIR带宽；
若网络设备的第一端口所属子系统为汇聚环，网络设备获取对应业务类型在第二端口所属子系统中对应的CIR带宽，该第二端口所属子系统为接入环，根据该CIR带宽和带宽收敛比确定第一端口的CIR带宽；
若网络设备的第一端口所属子系统为核心环，网络设备获取对应业务类型在第三端口所属子系统中对应的CIR带宽，该第三端口所属子系统为汇聚环，根据该CIR带宽和带宽收敛比确定第一端口的CIR带宽。
在另一个具体实施中，接入环、汇聚环和核心环的每个网络设备中预设业务类型对应的CIR带宽，预设的该CIR带宽为接入环端口的CIR带宽，网络设备根据该预设的CIR带宽和获取的带宽收敛比确定第一端口的CIR带宽。
本发明实施例中，对应业务类型预设的带宽收敛比小于或等于1。
具体地，网络设备中预设业务类型与带宽收敛比的对应关系，对于需要收敛的业务类型预设的带宽收敛比小于1；对于不需要收敛的业务类型预设的带宽收敛比等于1。
例如，对于3G业务和4G业务预设的带宽收敛比小于1；对于2G业务和企业专线业务预设的带宽收敛比等于1。
一个具体实施中，网络设备中预设业务类型、端口或端口所属子系统与带宽收敛比的对应关系。
本发明实施例中网络设备确定业务的业务类型并不是本发明所关注的内容，具体实施中，业务数据中携带有业务标识，网络设备根据业务标识与业务类型的对应关系，确定业务所属的业务类型。
步骤202：网络设备按照获取的带宽收敛比以及CIR带宽，确定该业务在第一端口的CIR带宽，根据确定的该业务在该第一端口的CIR带宽为该业务分配预留带宽。
具体地，网络设备将获取的CIR带宽乘以针对该业务类型预设的带宽收敛比，将得到的结果作为该业务在第一端口的CIR带宽。
优选地，网络设备计算第一端口的总预留带宽与该第一端口已分配的预留带宽的差，若确定得到的差值大于或等于该业务在第一端口的CIR带宽，按照该业务在第一端口的CIR带宽为该业务分配预留带宽；若确定得到的差值小于该业务在第一端口的CIR带宽，拒绝在该第一端口为该业务分配预留带宽。
其中，第一端口的总预留带宽为第一端口的物理带宽。
可选地，网络设备确定得到的差值大于或等于该业务在第一端口CIR带宽后，计算该业务在第一端口的CIR带宽与该第一端口已分配的预留带宽的和，若确定得到的和值不大于该第一端口的带宽可用率门限值，则按照该业务在第一端口的CIR带宽为该业务分配预留带宽；否则，拒绝在第一端口为该业务分配预留带宽。
具体实施中，可以通过网管系统或软件定义网络(Soft Defined Network，简称SDN)集中控制器为接入环、汇聚环和核心环中的每个网络设备中的每个端口配置业务类型与带宽收敛比的对应关系；或者，网络设备将业务类型与带宽收敛比的对应关系分别配置给每个子系统(接入环、汇聚环和核心环)中的一个网络设备，每个子系统中获取业务类型与带宽收敛比这一配置信息的网络设备将该配置信息配置给该子系统中的其他网络设备。
例如，如图3所示的MPLS/MPLS-TP网络架构中，汇聚环网络侧端口确定请求带宽资源的业务所属的业务类型为4G业务，并确定对应4G业务预设的接入环和汇聚环的CIR带宽比为4:3，若接入环网络侧端口分配给该业务的CIR带宽为80兆(M)，则汇聚环网络侧端口分配给该业务的CIR带宽为60M；核心环网络侧端口确定请求带宽资源的该业务所属的业务类型为4G业务，并确定对应4G业务预设的汇聚环和核心环的CIR带宽比为3:2，若汇聚环网络侧端口分配给该业务的CIR带宽为60M，则核心环网络 侧端口分配给该业务的CIR带宽为40M。
该实施例中，IP网络(特别是MPLS/MPLS-TP网络)中的网络设备确定请求第一端口的带宽资源的业务所属的业务类型后，通过获取对应该业务类型预设的带宽收敛比以及获取该业务类型对应的承诺信息速率CIR带宽，按照获取的该带宽收敛比以及该CIR带宽确定该业务在第一端口的CIR带宽，根据确定的该业务在所述第一端口的CIR带宽为该业务分配预留带宽，从而能够按照业务的收敛属性为业务分配预留带宽，能够按照业务需求的带宽资源进行每个层次子系统的带宽资源规划，有利于减少汇聚环和核心环中网络设备的带宽规划，大大降低了汇聚环和核心环中网络设备端口的部署成本，降低网络建设成本。
并且，通过预设业务类型对应的带宽收敛比即可实现对端到端的收敛规划，对于具有不同收敛属性的业务类型预设不同的带宽收敛比，能够满足在同一端口承载具有不同收敛属性的业务的需求，降低了带宽规划的运维成本。
基于同一发明构思，本发明实施例还提供了一种IP网络中的网络设备，用于实现本发明图2所示的IP网络中业务带宽确定方法，如图4所示，该网络设备主要包括：
确定模块401，用于确定请求第一端口的带宽资源的业务所属的业务类型，并获取对应所述业务类型预设的带宽收敛比以及获取所述业务类型对应的承诺信息速率CIR带宽；
分配模块402，用于按照所述带宽收敛比以及所述CIR带宽，确定所述业务在所述第一端口的CIR带宽，根据确定的所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
IP网络可以为MPLS/MPLS-TP网络。
其中，IP网络包括以下子系统：接入环、汇聚环和核心环。
若所述第一端口所属子系统为接入环，所述确定模块具体用于：
获取对应所述业务类型预设的CIR带宽；
若所述第一端口所属子系统为汇聚环，所述确定模块具体用于：
获取所述业务类型在第二端口所属子系统中对应的CIR带宽，所述第二端口所属子系统为接入环；
若所述第一端口所属子系统为核心环，所述确定模块具体用于：
获取所述业务类型在第三端口所属子系统中对应的CIR带宽，所述第三端口所属子系统为汇聚环。
所述分配模块具体可用于：
计算所述第一端口的总预留带宽与所述第一端口已分配的预留带宽的差，确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
所述分配模块还可用于：
确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽后，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽之前，计算所述业务在所述第一端口的CIR带宽与所述第一端口已分配的预留带宽的和，确定得到的和值不大于所述第一端口的带宽可用率门限值。
具体地，所述分配模块将确定模块获取的CIR带宽乘以针对该业务类型预设的带宽收敛比，将得到的结果作为该业务在第一端口所属子系统中的CIR带宽。
所述带宽收敛比小于或等于1。
具体地，网络设备中预设业务类型与带宽收敛比的对应关系，对于需要收敛的业务类型预设的带宽收敛比小于1；对于不需要收敛的业务类型预设的带宽收敛比等于1。
一个具体实施中，网络设备中预设业务类型、端口或端口所属子系统与带宽收敛比的对应关系。
所述第一端口的总预留带宽可以为所述第一端口的物理带宽。
具体实施中，对应所述业务类型预设的带宽收敛比由网管系统或SDN集中控制器配置。
基于同一发明构思，本发明实施例还提供了另一种IP网络中的网络设备，用于实现本发明图2所示的IP网络中业务带宽确定方法，如图5所示，该网络设备包括处理器501、存储器502和通信接口503，处理器501、存储器502、通信接口503通过总线504相互连接；总线504可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准结构(extended industry standard architecture，简称EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图5中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
存储器502，用于存放程序。具体地，程序可以包括程序代码，所述程序代码包括计算机操作指令。存储器502可能包含随机存取存储器(random access memory，简称RAM)，也可能还包括非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。
通信接口503用于与其他设备进行通信，还可用于接收业务请求。
处理器501执行存储器502所存放的程序，用于实现本发明实施例提供的IP网络中业务带宽确定方法，包括：
确定请求第一端口的带宽资源的业务所属的业务类型，并获取对应所述业务类型预设的带宽收敛比以及获取所述业务类型对应的承诺信息速率CIR带宽；
按照所述带宽收敛比以及所述CIR带宽，确定所述业务在所述第一端口的CIR带宽，根据确定的所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
IP网络可以为MPLS/MPLS-TP网络。
其中，IP网络包括以下子系统：接入环、汇聚环和核心环。
若所述第一端口所属子系统为接入环，处理器501获取对应所述业务 类型预设的CIR带宽，根据该CIR带宽以及带宽收敛比确定第一端口的CIR带宽；
若所述第一端口所属子系统为汇聚环，处理器501获取所述业务类型在第二端口所属子系统中对应的CIR带宽，所述第二端口所属子系统为接入环，根据获取的该CIR带宽以及带宽收敛比确定第一端口的CIR带宽；
若所述第一端口所属子系统为核心环，处理器501获取所述业务类型在第三端口所属子系统中对应的CIR带宽，所述第三端口所属子系统为汇聚环，根据获取的该CIR带宽以及带宽收敛比确定第一端口的CIR带宽。
处理器501计算所述第一端口的总预留带宽与所述第一端口已分配的预留带宽的差，确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
处理器501确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽后，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽之前，计算所述业务在所述第一端口的CIR带宽与所述第一端口已分配的预留带宽的和，确定得到的和值不大于所述第一端口的带宽可用率门限值。
处理器501将获取的该业务的CIR带宽乘以针对该业务类型预设的带宽收敛比，将得到的结果作为该业务在第一端口的CIR带宽。
所述带宽收敛比小于或等于1。
存储器502还可以用于保存预设的业务类型与带宽收敛比的对应关系。其中，对于需要收敛的业务类型预设的带宽收敛比小于1；对于不需要收敛的业务类型预设的带宽收敛比等于1。
一个具体实施中，网络设备中预设业务类型、端口或端口所属子系统与带宽收敛比的对应关系。
所述第一端口的总预留带宽可以为所述第一端口的物理带宽。
具体实施中，对应所述业务类型预设的带宽收敛比由网管系统或SDN 集中控制器配置。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (10)

  1. 一种互联网协议IP网络中业务带宽确定方法，其特征在于，包括：
    网络设备确定请求第一端口的带宽资源的业务所属的业务类型，并获取对应所述业务类型预设的带宽收敛比以及获取所述业务类型对应的承诺信息速率CIR带宽；
    所述网络设备按照所述带宽收敛比以及所述CIR带宽，确定所述业务在所述第一端口的CIR带宽，根据确定的所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
  2. 如权利要求1所述的方法，其特征在于，所述网络设备根据确定的所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽，包括：
    所述网络设备计算所述第一端口的总预留带宽与所述第一端口已分配的预留带宽的差，确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
  3. 如权利要求2所述的方法，其特征在于，所述网络设备确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽后，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽之前，所述方法还包括：
    所述网络设备计算所述业务在所述第一端口的CIR带宽与所述第一端口已分配的预留带宽的和，确定得到的和值不大于所述第一端口的带宽可用率门限值。
  4. 如权利要求1-3任一项所述的方法，其特征在于，所述IP网络包括接入环，汇聚环和核心环；
    若所述第一端口所属子系统为接入环，所述网络设备获取所述业务类型对应的承诺信息速率CIR带宽，包括：
    所述网络设备获取对应所述业务类型预设的CIR带宽；
    若所述第一端口所属子系统为汇聚环，所述网络设备获取所述业务类型对应的承诺信息速率CIR带宽，包括：
    所述网络设备获取所述业务类型在第二端口所属子系统中对应的CIR带宽，所述第二端口所属子系统为接入环；
    若所述第一端口所属子系统为核心环，所述网络设备获取所述业务类型对应的承诺信息速率CIR带宽，包括：
    所述网络设备获取所述业务类型在第三端口所属子系统中对应的CIR带宽，所述第三端口所属子系统为汇聚环。
  5. 如权利要求4所述的方法，其特征在于，所述对应所述业务类型预设的带宽收敛比由网管系统或软件定义网络SDN集中控制器配置。
  6. 一种互联网协议IP网络中的网络设备，其特征在于，包括：
    确定模块，用于确定请求第一端口的带宽资源的业务所属的业务类型，并获取对应所述业务类型预设的带宽收敛比以及获取所述业务类型对应的承诺信息速率CIR带宽；
    分配模块，用于按照所述带宽收敛比以及所述CIR带宽，确定所述业务在所述第一端口的CIR带宽，根据确定的所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
  7. 如权利要求6所述的网络设备，其特征在于，所述分配模块具体用于：
    计算所述第一端口的总预留带宽与所述第一端口已分配的预留带宽的差，确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽。
  8. 如权利要求7所述的网络设备，其特征在于，所述分配模块还用于：
    确定得到的差值大于或等于所述业务在所述第一端口的CIR带宽后，按照所述业务在所述第一端口的CIR带宽为所述业务分配预留带宽之前，计算所述业务在所述第一端口的CIR带宽与所述第一端口已分配的预留带 宽的和，确定得到的和值不大于所述第一端口的带宽可用率门限值。
  9. 如权利要求6-8任一项所述的网络设备，其特征在于，所述IP网络包括接入环，汇聚环和核心环；
    若所述第一端口所属子系统为接入环，所述确定模块具体用于：
    获取对应所述业务类型预设的CIR带宽；
    若所述第一端口所属子系统为汇聚环，所述确定模块具体用于：
    获取所述业务类型在第二端口所属子系统中对应的CIR带宽，所述第二端口所属子系统为接入环；
    若所述第一端口所属子系统为核心环，所述确定模块具体用于：
    获取所述业务类型在第三端口所属子系统中对应的CIR带宽，所述第三端口所属子系统为汇聚环。
  10. 如权利要求9所述的网络设备，其特征在于，所述对应所述业务类型预设的带宽收敛比由网管系统或软件定义网络SDN集中控制器配置。
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