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Method for processing border gateway protocol routing and router

A technology of border gateway protocol and processing method, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., and can solve the problem of difficult multiple neighbors.

Active Publication Date: 2012-03-28
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this approach is that since each AS may be managed by different organizations, it is difficult to ensure that there are multiple neighbors between each two ASs, and the above problems cannot be completely avoided.

Method used

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  • Method for processing border gateway protocol routing and router
  • Method for processing border gateway protocol routing and router
  • Method for processing border gateway protocol routing and router

Examples

Experimental program
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Embodiment Construction

[0048] The basic idea of ​​the embodiment of the present invention is: when the BGP configuration changes and the neighbor relationship needs to be rebuilt, the corresponding BGP route is not deleted, but the invalidation mark is set for the corresponding BGP reason, and the route is updated after the neighbor relationship is rebuilt.

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] refer to figure 2 , the BGP route processing method of the embodiment of the present invention comprises the following steps:

[0051] Step 201: when the first router determines that the neighbor relationship needs to be reestablished with the second router, the BGP route from the second router is set with an invalid (Stale) mark;

[0052] There is a neighbor relationship established between the first router a...

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Abstract

The invention discloses a method for processing border gateway protocol routing and a router. The method comprises: when a first router determines that the neighborhood between the first router and a second router needs to be rebuilt, the first router sets up invalid markers for BGP routing from the second router; the first router rebuilds the neighborhood with the second router, after the rebuilding neighborhood is finished, a first timer is started; the first router learns the BGP routing from the second router, updates the routing according to the learned BGP routing, deletes the BGP routing with the invalid marks after the first timer is overtime, and informs other neighbors of the deleted BGP routing. The invention can keep the flow rate not to be interrupted when the change of the BGP configuration leads to the rebuilding neighbors.

Description

technical field [0001] The invention relates to the routing technology in the communication network, in particular to a border gateway protocol routing processing method and a router. Background technique [0002] Border Gateway Protocol (Border Gateway Protocol, BGP) is a dynamic routing protocol used between autonomous systems (Autonomous System, AS), where AS is a group of routers that have the same routing strategy and operate under the same technical management department router. As a de facto Internet external routing protocol standard, BGP-4 is widely used among Internet service providers (Internet Service Providers, ISPs). [0003] figure 1 It is a schematic diagram of a network including three autonomous systems. Such as figure 1 As shown, router A (RTA) belongs to autonomous system 100 (AS100), router B (RTB) belongs to autonomous system 200 (AS200), router C (RTC) belongs to autonomous system 300 (AS300), and RTA establishes BGP with RTB and RTC respectively. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L45/02
Inventor 赵昌峰王伟周轶凡
Owner NEW H3C TECH CO LTD
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