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Method for upgrade processing for recursive router, device and router therefor

A processing method and routing technology, applied in the field of communication, can solve the problems such as the inability of the routing and forwarding table to converge completely, route flapping, etc., and achieve the effects of ensuring stability and convergence, reducing workload, and saving link bandwidth.

Active Publication Date: 2010-03-17
RUIJIE NETWORKS CO LTD
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  • Abstract
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Problems solved by technology

Afterwards, it returns to the state when the route C / 24 was just added, and a cycle of cycles occurs, resulting in routes A / 8, B / 8 and C / 24 being continuously deleted from the route forwarding table and then added to the route In the forwarding table, route flapping is caused, so that the routing and forwarding table cannot be completely converged

Method used

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  • Method for upgrade processing for recursive router, device and router therefor
  • Method for upgrade processing for recursive router, device and router therefor
  • Method for upgrade processing for recursive router, device and router therefor

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] Figure 5 It is a flowchart of an embodiment of the recursive routing update processing method of the present invention. Such as Figure 5 As shown, the recursive routing update processing method of this embodiment includes:

[0037] In step 101, when the recursive route needs to be updated, it is detected whether there will be a loop recursion phenomenon after the recursive route is updated. When the phenomenon of cyclic recursion does not occur after th...

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Abstract

The invention discloses a method for upgrade processing for a recursive router, a device and a router therefor, wherein the method for the upgrade processing for the recursive router comprises the steps: when the recursive router needs to be upgraded, the recursive router is detected that whether the circulating recursion phenomenon exists or not after upgrading; when the circulating recursion phenomenon does not exist in the recursive router after upgrading, the recursive router is upgraded; if not, when the circulating recursion phenomenon exists in the recursive router after upgrading, therecursive router is not upgraded. The embodiment of the invention can avoid the circulating recursion phenomenon in the recursive router when in upgrading, as well as the router oscillation and the unable convergence of the forwarding table of the router caused by the circulating recursion phenomenon.

Description

technical field [0001] The invention relates to communication technology, in particular to a recursive routing update processing method and device, and a router. Background technique [0002] For a routing forwarding table entry on the router, when its next hop cannot be directly connected, it must select a route again to obtain the final direct forwarding next hop. This route is called a recursive lookup route, or recursive for short. routing. For example: This router is set with Internet Protocol (Internet Protocol, hereinafter referred to as: IP) address 192.168.1.1 / 24, and configures the following static routes: IP routes 20.0.0.0255.255.255.010.0.0.2 and 10.0.0.0255.255.255.0192.168. 1.2, for the route 20.0.0.0 / 8, since the next hop 10.0.0.2 of 20.0.0.0 / 8 is not directly reachable, the next hop 192.168.1.2 must be reselected to be reachable, so 20.0. 0.0 / 8 is a recursive route. The recursive route is usually generated by Border Gateway Protocol (Border Gateway Protoc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L45/02
Inventor 胡闽
Owner RUIJIE NETWORKS CO LTD
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