Message forwarding method and device

A message forwarding and message technology, applied in the communication field, can solve the problems of uneven backup protocol sharing, uneven sharing, and inability to share with different L3 gateways

Active Publication Date: 2015-02-25
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In the solution to the uneven sharing problem of the existing gateway backup protocol, different data streams sent by the same client cannot be shared between different L3 gateways, resulting in uneven sharing

Method used

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  • Message forwarding method and device

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Embodiment Construction

[0087] The embodiment of the present invention provides a technical solution for message forwarding, which is applied to a large layer 2 network formed by multiple node devices based on a large layer 2 network protocol. The multiple node devices include a gateway node as a gateway node and a Each gateway node in the same VLAN is configured with a Layer 3 (L3) interface of the VLAN, and the Layer 3 interfaces of each gateway node in the same VLAN have different IP addresses and MAC addresses, that is, the real IP address address and real MAC address. In the embodiment of the present invention, the same virtual IP address and virtual MAC address are also configured for the three-layer interface of each gateway node of the same VLAN, that is, different gateway nodes under the same VLAN have the same virtual IP address and virtual MAC address .

[0088] In the embodiment of the present invention, the gateway node can notify the virtual MAC address configured by the node device an...

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Abstract

The invention discloses a message forwarding method and device. The method includes the steps that gateway nodes annunciate virtual MAC addresses configured by node devices and a WLAN which the addresses belong to through a broadcast tree which can reach all the node devices in a large layer-2 network; after non-gateway node devices receive the virtual MAC addresses configured by the gateway nodes and the WLAN which the addresses belong to through the broadcast tree, corresponding first MAC address forwarding table items are generated, wherein the virtual MAC addresses and the WLAN are annunciated by all the gateway nodes; when data messages with destination MAC addresses being the virtual MAC addresses of the gateway nodes are received by non-gateway nodes, the data messages are forwarded directly instead of conducting large layer-2 network protocol packaging in matching table items of the first MAC address forwarding table items according to the destination MAC addresses; when the gateway nodes receive the data messages and it is determined that the destination MAC addresses of the data messages are the virtual MAC addresses of the data messages, a routing table is searched for to forward the data messages according to the destination MAC addresses of the data messages. By means of the message forwarding method and device, L3 unicast traffic forwarding based on the large layer-2 network is achieved.

Description

technical field [0001] The invention relates to multicast technology in the field of communication, in particular to a message forwarding method and equipment. Background technique [0002] STP (Spanning Tree Protocol, Spanning Tree Protocol) is used in the traditional three-tier data center architecture to optimize the path from the client to the server and support connection redundancy. Due to the convergence performance of STP, etc., the network size of STP generally does not exceed 100 switches. At the same time, because STP needs to block redundant devices and links, it also reduces the bandwidth utilization of network resources. Traditional STP-based backup equipment and link solutions can no longer meet the scale and bandwidth requirements of the data center, and the STP protocol's fault convergence time of several seconds to minutes cannot meet the reliability requirements of the data center. Therefore, it is necessary to have new technologies that can make full us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/773H04L45/74
Inventor 宋玉兵
Owner NEW H3C TECH CO LTD
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