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Method and device for establishing a service tunnel

A tunnel establishment and tunneling technology, applied in the network field, can solve problems such as different tunnels and inability to realize different business adoption, and achieve the effect of improving bandwidth utilization

Active Publication Date: 2019-04-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The present invention provides a method and device for establishing a service tunnel. The method and device provided by the present invention solve the problem that in the prior art, only one tunnel can be selected to carry all services in one domain, and it is impossible to use different tunnels for different services. bearer problem

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  • Method and device for establishing a service tunnel
  • Method and device for establishing a service tunnel
  • Method and device for establishing a service tunnel

Examples

Experimental program
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Embodiment 1

[0081] Such as figure 2 As shown, the embodiment of the present invention provides a method for establishing a service tunnel, and the method specifically includes steps:

[0082]Step 201, when a virtual private network (VPN) service needs to be opened between the first edge device in the first area and the second edge device in the second area across at least one intermediate area, receive the label routing information corresponding to the VPN service The destination edge device obtains the tunnel requirement identifier corresponding to the VPN service from the label route;

[0083] In the embodiment of the present invention, when the edge device (which may be a UPE) that initiates the VPN service is aimed at the characteristics of different services, it assigns different label routes to different VPN services, so that the edge device that receives the label route can be based on the Label routing selects a tunnel that meets the requirements of each VPN service to carry eac...

Embodiment 2

[0101] Wherein, opening VPN1 between UPE-2 and UPE-1 triggers the establishment of BGP LSP and the processing method of selecting each segment tunnel includes (such as Figure 4 shown):

[0102] Step 401, UPE-2 configures the service affinity attribute X1 for the instance where VPN1 is located, and UPE-2 publishes a BGP label route carrying the service affinity attribute X1 to NPE-3;

[0103] Step 402, after receiving the BGP label route released by UPE-2, NPE-3 matches the tunnel management attribute on the TE tunnel on the device according to the affinity attribute carried by the label route, and further finds the corresponding TE LSP: tunnel 3 -1;

[0104] Step 403, NPE-3 modifies the next hop in the BGP label route to NPE-3, without changing the original service affinity attribute, and forwards it to NPE-1;

[0105] Step 404, after receiving the BGP label route released by NPE-3, NPE-1 matches the tunnel management attribute on the TE tunnel on the device according to th...

Embodiment 3

[0137] Opening the PW1 service between UPE-2 and UPE-1 triggers the process of establishing a BGP LSP and selecting each segment of the tunnel (such as Figure 5 shown):

[0138] Step 501, UPE-2 configures the service affinity attribute X6 for the instance where PW1 is located, and UPE-2 publishes a BGP label route carrying the service affinity attribute X6 to NPE-3;

[0139] Step 502, after receiving the BGP label route released by UPE-2, NPE-3 matches the tunnel management attribute on the TE tunnel on the device according to the affinity attribute carried by the label route, and further finds the corresponding TE LSP: tunnel 3 -3;

[0140] Step 503, NPE-3 modifies the next hop in the BGP label route to NPE-3, without changing the original service affinity attribute, and forwards it to NPE-1;

[0141] Step 504, after receiving the BGP label route released by NPE-3, NPE-1 matches the tunnel management attribute on the TE tunnel on the device according to the affinity attrib...

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Abstract

Disclosed are a service tunnel establishment method and device. The method disclosed in the present invention comprises: when a virtual private network (VPN) service needs to be provided between a first edge device in a first area and a second edge device in a second area across at least one intermediate area, a target edge device that has received a label route corresponding to the VPN service acquires a tunnel request identifier corresponding to the VPN service from the label route; and the target edge device performs matching between the acquired tunnel request identifier and established tunnels in an area to which the target edge device belongs, and if a matching result between the tunnel request identifier and any of the established tunnels meets a preset condition, selects the tunnel to carry the VPN service. By using the scheme provided in the embodiments of the present invention, different services can be carried by using different tunnels or the same tunnel in different domains, thereby ensuring that the services can be carried on correct tunnels after the services enter the corresponding domains.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a method and equipment for establishing a service tunnel. Background technique [0002] With the emergence of various powerful mobile terminal devices, data services have gradually become the main service type of mobile networks. At the same time, air interface technology has also continued to develop, and bandwidth has become wider and wider. This has led to the growth of many large data volume applications: music , video, games, and social networking. These applications drive a huge increase in data traffic. In 2G / 3G, Synchronous Digital Hierarchy (SDH) is usually used to carry mobile services, but the architecture of SDH cannot support the demands of increasing scale and traffic bandwidth. Only by adopting IP and Ethernet technologies for mobile bearer can the demands of traffic growth be met while reducing the network construction cost of operators. The whole netw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/803H04L12/46
CPCH04L12/4633H04L12/4641
Inventor 阴元斌庄顺万
Owner HUAWEI TECH CO LTD