Fast convergence method and device of the end-to-end service

A fast convergence and business technology, applied in the field of network communication, can solve problems such as slow convergence and slow end-to-end business convergence

Inactive Publication Date: 2007-09-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 1. The convergence of end-to-end services is relatively slow, especially for BGP routes that transmit VPN routing information, and their convergence is even slower

Method used

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  • Fast convergence method and device of the end-to-end service
  • Fast convergence method and device of the end-to-end service
  • Fast convergence method and device of the end-to-end service

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In this embodiment, the service routing adopts the mode of active and standby routing, that is, on the VPN start node, the preferred route and the non-preferred route with end nodes different from the preferred route are combined into the active and standby route.

[0036] Referring to Fig. 2 and Fig. 3, the embodiment of the present invention provides a method for quickly converging end-to-end services, which specifically includes the following steps:

[0037] Step 101: On the VPN start node, combine the preferred route and the non-preferred route with different end nodes from the preferred route to form the active and standby routes, and add them to the forwarding table entry of the VPN start node device, that is, corresponding to each Each VPN route prefix has a primary route and a backup route. The information of the active route and the standby route in the forwarding table both include an inner label and an outer label, wherein the outer label corresponds to an ou...

Embodiment 2

[0048] In this embodiment, the service routing also adopts the mode of active and standby routing, that is, on the initial node of the VPN, the preferred route and the non-preferred route with different end nodes from the preferred route are combined to form the active and standby route.

[0049] Referring to Figure 4 and Figure 5, the embodiment of the present invention also provides a method for quickly converging end-to-end services, which specifically includes the following steps:

[0050] Step 201: On the VPN start node, the preferred route and the non-preferred route with different end nodes from the preferred route are combined to form the active and standby routes, and added to the forwarding table entry of the VPN start node device, that is, corresponding to each Each VPN route prefix has a primary route and a backup route. The information of the active route and the backup route in the forwarding table includes the inner label, and each route information can be index...

Embodiment 3

[0056] Different from the above-mentioned embodiments, the service routing in this embodiment adopts the mode of load sharing, that is, the service routing is jointly load-sharing by multiple preferred routes, see Fig. 6 and Fig. 7 , the embodiment of the present invention also provides a The method for rapidly converging end-to-end services includes the following steps:

[0057] Step 301: Select multiple VPN routes for load sharing on the starting node of the VPN service, use each load sharing route as the main route, and set a backup route for each main route, and the backup route is provided by Other preferred routes with different end nodes from the corresponding primary route are responsible and added to the forwarding table entry of the VPN start node device, that is, there are multiple load-balancing primary routes corresponding to each VPN route prefix, each Each primary route has a corresponding backup route. For each active route, select other preferred routes as ba...

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Abstract

The present invention provides a rapid convergence of end-to-end business methods and devices belong to communications field. In order to solve the system of autonomy-node equipment or business convergence slower after link failure end-to-end, and may affect business problems, this invention provides the above methods, including: the use of selected routing and configuration corresponding standby routing, all set up all the corresponding routing outer tunnel for the effective state ;after the outer layer detects a fault of the tunnel to, the state of the outer tunnel changed to failure; when transmit the business text, if the correspondence outer tunnel routing is failure, then use the corresponding backup routing transponders. The present invention also provides these devices, including configuration module, module and the tunnel state business records convergence module.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and device for rapidly converging end-to-end services. Background technique [0002] Today, with the rapid development of the network, the demand for the integration of the telephone network, the cable TV network and the Internet (Internet) is becoming increasingly urgent. Operators attach great importance to the service convergence time when the network fails. When any node fails, the adjacent The time for node service switching is less than 50ms, and the time for end-to-end service convergence is less than 200ms to 1s, which have gradually become threshold-level indicators for bearer networks. [0003] In order to meet the requirements that the service switching time of adjacent nodes is less than 50ms, and the end-to-end service convergence time is less than 200ms to 1s, MPLS (Multi-Protocol Label Switch, Multi-Protocol Label Switching), TE FRR (Traffic Engineerin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/56
CPCH04L45/22H04L45/28H04L45/02
Inventor 李鉴
Owner HUAWEI TECH CO LTD
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