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Method and network device for processing traffic engineering link information

A technology of link information and traffic engineering, which is applied to the processing method of traffic engineering link information and the field of network equipment, and can solve the problem of not showing LAG attribute information, etc.

Inactive Publication Date: 2012-11-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the creation process of the present invention, the inventor found that the prior art has at least the following problems: currently, when processing TE link information, the TE link information does not indicate LAG attribute information, which is not conducive to network equipment to obtain accurate link information. use road information for path calculation, path establishment, or provide maintenance services

Method used

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  • Method and network device for processing traffic engineering link information
  • Method and network device for processing traffic engineering link information
  • Method and network device for processing traffic engineering link information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 as shown, figure 1 It is a flow chart of the method in Embodiment 1 of the present invention.

[0023] S102: Obtain data link information in the LAG, and calculate LAG attribute information according to the data link information;

[0024] S104: Load the LAG attribute information into the TE link information;

[0025] S106: Publish the TE link information carrying the LAG attribute information; the TE link information carrying the LAG attribute information includes: the protection type of the TE link is LAG protection, the available bandwidth of the TE link, and the TE link The bandwidth of the largest LSP that can be carried.

[0026] Optionally, the TE link information bearing the LAG attribute information also includes the LAG protection bandwidth of the TE link.

[0027] When the information of each data link in the LAG changes, for example, the data link is added or decreased in the LAG, or the bandwidth of the data link changes; then the steps ...

Embodiment 2

[0030] Such as figure 2 as shown, figure 2 It is a schematic diagram of network device connection in Embodiment 2 of the present invention. exist figure 2 In this example, four data links are connected between network device A and network device B, and the four data links are aggregated into one LAG.

[0031] S202: Network device A obtains 4 data link information in the LAG, where the bandwidth of each data link is 100M; calculates the LAG attribute information according to the 4 data link information, specifically including: the available bandwidth of the LAG is 400M, and the LAG protection The bandwidth is 200M.

[0032] What needs to be explained here is: (1) The available bandwidth of the LAG is obtained by adding the bandwidth of the data link available in the LAG, that is, 100M*4=400M; (2) Since the LAG has load sharing (Load Sharing) capabilities, and the bandwidth of the four data links in this embodiment is the same (i.e. 100M), usually, the algorithm for data ...

Embodiment 3

[0041] Such as image 3 as shown, image 3 It is a schematic diagram of a data link failure between network devices according to Embodiment 3 of the present invention. exist image 3 In the example, 4 data links are connected between network device A and network device B, and the 4 data links are aggregated into a LAG. When data links 1-3 fail, only data link 4 is available.

[0042] S302: Network device A obtains four data link information in the LAG, in which data link 1-3 fails and the bandwidth of data link 4 is 100M; calculate and obtain LAG attribute information according to the four data link information, specifically including: The LAG available bandwidth is 100M, and the LAG protection bandwidth is 0.

[0043] What needs to be explained here is: in this embodiment, due to the failure of data links 1-3 in the LAG, only data link 4 is available, so the available bandwidth of the LAG is the bandwidth of data link 4 100M, and the LAG If protection cannot be provided a...

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Abstract

The invention relates to the field of network communication technologies, more particularly discloses a method for processing traffic engineering link information, comprising the following steps: acquiring data link information in a link aggregation group and calculating the acquired LAG attribute information according to the data link information; loading the LAG attribute information into the traffic engineering TE link information; and issuing the TE link information that loads the LAG attribute information, wherein the TE link information that loads the LAG attribute information comprisesan LAG protection type of the TE link, available bandwidth of the LE link and bandwidth capable of carrying a maximum label switched path of the TE link. The invention also discloses a network devicefor processing the traffic engineering information. By utilizing the technical scheme, the invention effectively reflects the LAG attribute information by the traffic engineering link information andis good for acquiring accurate data link information of the network device and convenient to carry out path calculation, path establishment or providing maintenance service.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a processing method and network equipment for traffic engineering (TE, Traffic Engineering Link) link information. Background technique [0002] With the development of Ethernet technology, Ethernet gradually evolves into a transport network and becomes a network capable of providing packet transport. Network devices in a transport network usually consist of a management plane, a control plane, and a user plane. The management plane provides network managers with the ability to manage devices; the control plane completes the control of the user plane through signaling interaction; the user plane is used to forward and transmit user data. Generalized Multi-Protocol Label Switching (GMPLS, Generalized Multi-Protocol Label Switching) technology unifies the control planes of devices at all levels, that is, switching devices at all levels will use the same signaling to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/46H04L45/50
Inventor 易其亮
Owner HUAWEI TECH CO LTD