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Election method and device for specified router

A technology for routers and determining units, which is applied in data exchange through path configuration, digital transmission systems, data exchange networks, etc., and can solve problems such as wasting CPU resources and reducing the efficiency of designated router elections

Inactive Publication Date: 2017-04-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a designated router election method and device, which solves the problem that in the existing network, when a new neighbor router joins, a neighbor router election qualification attribute changes, or a known neighbor router leaves, the designated router re-election will be triggered. Thereby reducing the election efficiency of designated routers and wasting CPU resources

Method used

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  • Election method and device for specified router
  • Election method and device for specified router
  • Election method and device for specified router

Examples

Experimental program
Comparison scheme
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no. 1 example

[0073] like figure 2 As shown, the election method of the Designated Router includes:

[0074] Step 11: Obtain change information of the router's neighbor routers.

[0075] In a specific embodiment of the present invention, the change information of the neighbor routers of the router may specifically include: change information of the number of neighbor routers of the router and change information of election qualification attributes of the neighbor routers.

[0076] Step 12: According to the change information of the neighbor routers of the router, judge whether it is necessary to re-elect the designated router on the router, and obtain a judgment result.

[0077] Step S13: If the judgment result is yes, re-elect the designated router on the router, otherwise, do not re-elect the designated router.

[0078] The method for electing a designated router in the embodiment of the present invention first obtains the change information of the neighbor routers of the router; Re-e...

no. 2 example

[0080] In this embodiment, the change information of the router's neighbor routers is the change information of the number of the router's neighbor routers, for example, the change information of the router's neighbor routers is the increase information of the number of the neighbor routers.

[0081] like image 3 As shown, the election method of the Designated Router includes:

[0082] Step 111: Obtain information about increasing the number of neighboring routers of the router.

[0083] Specifically, each protocol may have different definitions for the situation when a new neighbor router joins the network, mainly including the following two situations: it may be that the state of the neighbor reaches two-way communication (two-way communication indicates that the router has discovered the existence of the other party), and it may be that as long as it is found Neighboring routers, regardless of whether the peer has discovered itself, that is, the neighbor state reaches the...

no. 3 example

[0096] In this embodiment, the change information of the router's neighbor routers is the number change information of the router's neighbor routers, for example, the change information of the router's neighbor routers is the number reduction information of the neighbor routers.

[0097] like Figure 5 As shown, the election method of the Designated Router includes:

[0098] Step 112: Obtain information on reducing the number of neighbor routers of the router.

[0099]Specifically, each protocol may have a different definition of the known neighbor leaving the network, mainly including the following two situations: it may be that the router node of the known neighbor has indeed left the network, or the routing status of the neighbor has dropped from the bidirectional communication state To the one-way communication state (the router discovers the existence of the neighbor but the neighbor has not discovered the existence of the router).

[0100] Step 123: According to the nu...

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Abstract

The invention provides an election method and device for a specified user, and the method and device are used for solving problems of the reduction of the election efficiency of the specific router and the waste of CPU resources because the specified router is triggered for new election when a new neighbor router is added to a conventional network, the attribute of election qualification of the neighbor router changes or a known neighbor router leaves. The method comprises the steps: obtaining the change information of the neighbor router of the router; judging whether there is the need to carry out new election of the specific router on the router or not according to the change information of the neighbor router of the router, and obtaining a judgment result; electing the specified router on the router if there is the need to carry out new election of the specific router on the router, or else, enabling the specified router not to be elected. According to the invention, the method carries out the new election when there is the need to carry out new election of the specific router, or else does not carry out the new election of the specified router, thereby improving the election efficiency of the specified router, and saving the precious CPU resources.

Description

technical field [0001] The invention relates to the technical field of routers, in particular to a method and device for electing a designated router. Background technique [0002] Many protocols in the communication network adopt a Designated Router (Designated Router, DR for short) mechanism. In a multi-access network, in order to reduce the exchange of a large number of redundant protocol messages, all routers only exchange messages with the elected designated routers, thus avoiding a large amount of redundancy caused by the exchange of messages between all routers. In this way, it can save precious bandwidth resources and reduce the pressure on the processing capacity of routers. [0003] However, the protocol using the DR mechanism will trigger the re-election of the corresponding designated router when a new neighbor router joins, the election qualification attribute of the neighbor router changes, or the known neighbor router leaves, but in many cases it will not cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/751H04L12/24H04L45/02
CPCH04L12/42
Inventor 何建军
Owner ZTE CORP