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Routing switching triggering method and service provider-end provider edge equipment

A technology that serves operators at the edge of operators. It is used in data exchange networks, digital transmission systems, electrical components, etc. It can solve problems such as impossible routing, monitoring, and SPE can't know faults, so as to improve performance and reliability. Effect

Active Publication Date: 2014-05-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the process of routing switching in the existing technology, because the number of routes in the backbone network is huge, up to hundreds of thousands of routes, it is impossible for SPE to monitor all routes, but only a small number of pre-configured The designated route is monitored, so that when the link on the non-designated route fails, the SPE cannot know the failure, so that the UPE cannot be triggered to switch the route when the link fails

Method used

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  • Routing switching triggering method and service provider-end provider edge equipment
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  • Routing switching triggering method and service provider-end provider edge equipment

Examples

Experimental program
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Embodiment 1

[0047] In this embodiment 1, the method for triggering the UPE to switch the route adopts the above-mentioned method 1 (withdrawing the route between the SPE and the UPE). See figure 1 with image 3 Taking SPE1 as an example, the process of implementing route switching in Embodiment 1 of the present invention includes:

[0048] Step 301: SPE1 establishes a binding relationship between the neighbor relationship between SPE1 and the routing device of the backbone network (denoted as neighbor relationship 1) and the neighbor relationship between SPE1 and UPE (denoted as neighbor relationship 2).

[0049] Here, the establishment of a binding relationship between neighbor relationship 1 and neighbor relationship 2 is to be able to link to neighbor relationship 2 by monitoring neighbor relationship 1 in the subsequent process to trigger route switching. In addition, the specific implementation of establishing the binding relationship between neighbor relationship 1 and neighbor relations...

Embodiment 2

[0068] In the second embodiment, the method for triggering the UPE to switch the route adopts the second method (interrupting the neighbor relationship between the SPE and the UPE). See figure 1 with Figure 4 Taking SPE1 as an example, the process of implementing route switching in Embodiment 2 of the present invention includes:

[0069] All descriptions of step 401 to step 402 and step 301 to step 302 are the same.

[0070] Step 403: SPE1 interrupts the neighbor relationship 2 between SPE1 and UPE.

[0071] Here, one implementation of SPE1 interrupting neighbor relationship 2 is: SPE1 closes the transmission control protocol (Transmission Control Protocol, TCP) connection between the UPEs corresponding to neighbor relationship 2.

[0072] After the neighbor relationship 2 is interrupted, the UPE can determine that it needs to switch the route. After receiving the data from the user terminal, send it to SPE2 through the default route with SPE2, thus realizing the route switch on UPE....

Embodiment 3

[0078] In the third embodiment, the method for triggering the UPE to switch the route adopts the third method (making the priority of the route between the SPE and the UPE lower than the priority of the route between the other SPE and the UPE). See figure 1 with Figure 5 Taking SPE1 as an example, the process of implementing route switching in Embodiment 3 of the present invention includes:

[0079] All descriptions of steps 501 to 502 and steps 301 to 302 are the same.

[0080] Step 503: SPE1 lowers the priority of the route between SPE1 and the UPE corresponding to neighbor relationship 2, and is lower than the priority of the route between SPE2 and the UPE.

[0081] When UPE selects the SPE to receive user terminal data according to the default route advertised by each SPE, it can choose according to the length of the as-path field in the default route advertised by the SPE, for example, the default route advertised by SPE1 Compare the length of the as-path field (denoted as len...

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Abstract

Embodiments of the present invention provide a method and a service provider-end provider edge device for triggering a route failover. The method includes: establishing a binding relationship between a first neighbor relationship and a second neighbor relationship, where the first neighbor relationship is between a service provider-end provider edge device and a routing device of a backbone network and the second neighbor relationship is between the service provider-end provider edge device and a user-end provider edge device; detecting whether the first neighbor relationship is broken; and if so, triggering the user-end provider edge device corresponding to the second neighbor relationship to perform a route failover. The service provider-end provider edge device in the present invention includes: a binding module, a detection module, and a trigger module. With the present invention, the service provider-end provider edge device can be triggered to perform a route failover when a link fails.

Description

Technical field [0001] The embodiment of the present invention relates to communication technology, and in particular to a method for triggering a route switch and a service operator side operator edge device. Background technique [0002] In the communication network, due to factors such as construction cost and transformation period, not every device in the network uses equipment with high processing performance. Generally, for the edge devices of the communication network, because the edge devices need to support relatively few functions, the edge devices will use devices with relatively low processing performance, and accordingly, the routing capacity of the edge devices will be small. [0003] See figure 1 , The current networking structure includes: User-end PE (UPE), Service Provider-end PE (SPE) and backbone network, Among them, UPE is used to connect user terminals, SPE is used to connect routing equipment in the backbone network, and one UPE is usually connected to multi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L12/26H04L45/24H04L45/28
CPCH04L45/28H04L45/22H04L45/04H04L41/0668
Inventor 王海波
Owner HUAWEI TECH CO LTD