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Method and edge device for establishing multicast forwarding entry in an evi network

A technology of multicast forwarding table and network, applied in the field of network communication, can solve the problem that multicast cannot be realized.

Active Publication Date: 2018-10-09
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In an EVI network, EDs implement the EVI split horizon function by default to prevent loops between multiple EDs in the overlapping network. Tunnel port forwarding, so if the above-mentioned method of establishing multicast forwarding table items is used in the EVI network, multicast cannot be realized

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  • Method and edge device for establishing multicast forwarding entry in an evi network
  • Method and edge device for establishing multicast forwarding entry in an evi network
  • Method and edge device for establishing multicast forwarding entry in an evi network

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Embodiment Construction

[0022] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0023] Such as figure 1 As shown, the present invention provides a kind of method for setting up multicast forwarding table entry in an EVI network in one embodiment, and the method for this setting up multicast forwarding table item comprises the following steps:

[0024] Step 11, the ED receives the multicast group query message.

[0025] After the ED receives the multicast query message, if the port receiving the multicast group query message is the port connected to the site equipment, then perform step 12; if the port receiving the multicast group query message is EVI tunnel port, and the multicast group query message carries the forwarding identifier, then perform step 13, if the port receiving the multicast group query message is an EVI tunnel port, and the multicast group query message does not carry the forwarding identifier, then ...

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Abstract

The invention discloses a method for establishing a multicast forwarding entry in an EVI network: an ED receives a multicast group query message; The ED adds the port receiving the multicast group query message to the router port list corresponding to the multicast group; if the port receiving the multicast group query message is an EVI tunnel port, and the multicast group query Message carries forwarding mark, then described ED will receive the port of described multicast group query message and add the router port list corresponding to this multicast group; If the port that receives described multicast group query message is EVI tunnel mouth, And the multicast group query message does not carry a forwarding identifier, then the ED adds the port receiving the multicast group query message to the virtual router port list corresponding to the multicast group.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for establishing a multicast forwarding entry in an EVI network and an edge device (ED). Background technique [0002] Ethernet Virtual Interconnection (Ethernet Virtual Interconnection, EVI) can realize the connection of Layer 2 vlan traffic between two sites, and a current implementation technology is "MAC in IP" technology. [0003] The EVI network consists of a site network and a core network, and the EDs of each site are connected to the core network. A current implementation technology is to establish a Generic Routing Encapsulation (GRE) tunnel with the ED of the remote site through the core network, and complete the mapping of packets from the site network to the remote site through the GRE tunnel established in the core network and forwarding, multiple virtual Ethernet links (EVI Links) can be carried on the GRE tunnel. [0004] A method for esta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/761H04L45/16
CPCH04L12/6418H04L12/18H04L12/4641
Inventor 周绪龙孙策
Owner NEW H3C TECH CO LTD
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