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A method and device for forwarding packets in an edge two-layer network

A two-layer network and edge technology, applied in the field of communication, can solve problems such as wasting bandwidth and increasing delay

Active Publication Date: 2016-08-03
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It can be seen from the above that the three-layer forwarding across VLANs in the edge network must pass through the gateway, and the forwarding path is not the optimal path, which wastes bandwidth and increases delay.

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  • A method and device for forwarding packets in an edge two-layer network
  • A method and device for forwarding packets in an edge two-layer network
  • A method and device for forwarding packets in an edge two-layer network

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0039] In the embodiment of the present invention, a method for forwarding messages in an edge layer 2 network is proposed. The edge layer 2 network includes a server access device connected to a server or a host device, an intermediate device for layer 2 forwarding, and access to a layer 3 network. gateway device. Any of the server access devices establishes an L2VPN forwarding information base information table and a global host information base information table, and in the VLAN configured with SHF, generates three Layer host routing forwarding table entry, and generates default routing forwarding table default routing table item; Wherein, the information contained in the three-layer host routing forwarding table item has purpose IP ...

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Abstract

This application discloses a method and device for forwarding messages in an edge two-layer network. The technical solution is: the server access device generates a three-layer host routing forwarding entry locally, and when receiving a message forwarded across VLANs in the edge network When the packet is forwarded, it does not need to be forwarded through the gateway device, and the forwarding path is the same as the layer-2 forwarding path according to the layer-3 host forwarding table. The present invention can realize the shortest path forwarding of messages across VLANs in the edge two-layer network.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for forwarding messages in an edge two-layer network. Background technique [0002] For the Layer 2 network inside the data center site, the forwarding technologies that can be used include the shortest path bridge (ShortestPathBridge, SPB), the transparent interconnection of multiple links (TransparentInterconnectionoflotsoflink, TRILL), and the virtual private label switching (VirtualPrivateLabelSwitch, VPLS) network, etc. These technologies are Layer 2 tunneling technology. These Layer 2 tunnel technologies can well support Layer 2 forwarding, Equal Cost MultiPath (ECMP), shortest path, transparent switching, and simple management. The entire data center network is used as the edge of the Internet, generally with L2VPN as the backbone core, one side is connected to a large number of terminal hosts or servers, and the other side is co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/715H04L12/721H04L12/741H04L12/46H04L45/74
CPCH04L12/4633H04L12/465H04L12/4666H04L12/4675H04L45/12H04L45/66H04L45/74
Inventor 周万
Owner NEW H3C TECH CO LTD
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