Route advertising method and device among direct-connecting EBGP neighbors

A neighbor and routing technology, applied in the network field, can solve problems such as inaccurate filtering and difficult routing policy configuration, and achieve the effect of reducing the number of routes

Active Publication Date: 2010-01-20
NEW H3C TECH CO LTD
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Problems solved by technology

When the characteristics of the route to be filtered are not obvious, it is dif

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  • Route advertising method and device among direct-connecting EBGP neighbors
  • Route advertising method and device among direct-connecting EBGP neighbors
  • Route advertising method and device among direct-connecting EBGP neighbors

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Embodiment Construction

[0048] 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 of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049] The present invention provides a route notification method between directly connected EBGP neighbors, which is applied to the local device and the opposite device that have established a directly connected EBGP neighbor relationship, such as figure 2 As shown, the method includes:

[0050] Step s201 , the local device selects the direct EBGP neighbor as the primary neighbor among the directly connected EBGP neighbors existing between the ...

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Abstract

The invention discloses a route advertising method and a device among direct-connecting EBGP neighbors. The method is applied to a local terminal device and an opposite terminal device with the relationship of the direct-connecting EBGP neighbors, and comprises the following steps: selecting one of the direct-connecting EBGP neighbors between the local terminal device and the opposite terminal device as a main neighbor; when the local terminal device needs to advertise routes to the customer device, only sending the route advertisement to the opposite terminal device through the main neighbor in the direct-connecting EBGP neighbors, and refreshing the routes by the opposite terminal device through the route advertisement. The invention reduces the quantity of routes to be maintained and the quantity of routes to be transmitted among a plurality of pairs of devices with the relationship of the direct-connecting EBGP neighbors, and can filter redundant routes without configuring a route filtering strategy.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a route notification method and equipment between directly connected EBGP neighbors. Background technique [0002] BGP (Border Gateway Protocol, Border Gateway Protocol) is a dynamic routing protocol used between AS (Autonomous System, Autonomous System). AS refers to a group of routers with the same routing policy. When BGP runs between different ASs, it is called EBGP (External BGP, inter-domain BGP). [0003] by figure 1 Take the networking scenario shown as an example, figure 1 Among them, Router A, Router B, and Router C belong to AS 10, AS 20, and AS 30 respectively, so follow the normal networking habits: [0004] (1) For security reasons, direct EBGP is used between adjacent ASs, and the receiving end requires the next hop of the route advertised by the peer end to be the neighbor address of the end; B advertises a route as an example, and the next hop of the adverti...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56H04L45/02
Inventor 周轶凡章海锋
Owner NEW H3C TECH CO LTD
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