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VPLS (Virtual Private LAN Service) output route filtering method and device based on BGP (Border Gateway Protocol)

A filtering method and routing technology, applied in data exchange through path configuration, digital transmission system, data exchange network, etc., can solve the problem of inability to accurately filter routing information

Inactive Publication Date: 2012-07-25
RUIJIE NETWORKS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a BGP protocol-based VPLS outgoing route filtering method and device to solve the problem in the prior art that it is impossible to accurately filter routing information that is useless for routing equipment

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  • VPLS (Virtual Private LAN Service) output route filtering method and device based on BGP (Border Gateway Protocol)
  • VPLS (Virtual Private LAN Service) output route filtering method and device based on BGP (Border Gateway Protocol)
  • VPLS (Virtual Private LAN Service) output route filtering method and device based on BGP (Border Gateway Protocol)

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Embodiment Construction

[0021] Aiming at the problem in the prior art that the routing information that is useless to the routing device cannot be accurately filtered, the embodiment of the present invention provides a BGP-based VPLS outgoing route filtering method, the process of the method is as follows figure 2 As shown, the specific execution steps are as follows:

[0022] S10: start.

[0023] S11: The first routing device supporting the ORF capability determines whether the second routing device that is a BGP Peer with it supports the ORF capability, and if it is determined to be yes, execute S12; otherwise, execute S14.

[0024] Outbound Route Filter (ORF) is a technology that can reduce unnecessary transmission of routing information between BGP peers. BGP supports setting filtering conditions when routing information is sent and received, and only specific routing information that meets the filtering conditions is allowed to be sent / received. The basic idea of ​​ORF is: the receiving end n...

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Abstract

The invention discloses a VPLS (Virtual Private LAN Service) output route filtering method and a device based on a BGP (Border Gateway Protocol). The VPLS output route filtering method comprises the following steps that: after first route equipment which supports an output route filtering ORF (Open Reading Frame) capacity determines that second route equipment, which is a BGP Peer with the first route equipment, supports the ORF capacity, a route filtering strategy sent by the second route equipment is received, wherein the route filtering strategy comprises acceptable station point range Block-Size information of the second route equipment; and when the first route equipment determines that the station point information VE-ID stored by the first route equipment is in the Block-Size information included by the route filtering strategy, route information is sent to the second route equipment. With the adoption of the scheme, the useless information of a receiver can be accurately filtered, so as to save network resources and internal memories of the route equipment.

Description

technical field [0001] The invention relates to the technical field of network equipment, in particular to a BGP protocol-based VPLS outgoing route filtering method and device. Background technique [0002] The Border Gateway Protocol (BGP) is widely deployed in today's Internet (Internet), and is a routing protocol used to transmit a large amount of routing information between Autonomous Systems (AS). Before transmitting routing information, routing devices such as routers or switches need to establish a connection through the BGP protocol, and two devices that establish a BGP connection are neighbors (BGP Peer). The BGP Peer connection is established on top of the Transmission Control Protocol (TCP) connection, and is used to carry various BGP messages: routing update messages, connection keep-alive messages, etc. TCP connection communication will occupy a large amount of network resource. When a large amount of routing information is transmitted between BGP peers, a lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L45/50
Inventor 王孟
Owner RUIJIE NETWORKS CO LTD
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