Message forwarding method and device in two-layered edge 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: 2014-01-29
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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  • Message forwarding method and device in two-layered edge network
  • Message forwarding method and device in two-layered edge network
  • Message forwarding method and device in two-layered edge 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 item default routing table item; Wherein, the information that described three-layer host routing forwarding table item contains has...

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Abstract

The present disclosure describes methods and network devices for forwarding a message in a layer 2 edge network that includes an access server device connected to a sender device and a gateway device. Forwarding information, which includes information of destination IP address, destination media access control (MAC) address, destination virtual local area network identifier VLAN ID and destination device ID, is established. A message is received by the access server device from the sender device. The message includes first destination MAC address, first destination IP address, first destination VLAN ID, and first destination device ID. It is determined whether the first destination MAC address of a received message is a MAC address of the gateway device. If the first destination MAC address is determined not to be the MAC address of the gateway device, the received message is forwarded according to the first destination MAC address, first destination VLAN ID and first destination device ID. Otherwise, if the first destination MAC address is determined to be the MAC address of the gateway device, second destination MAC address, second destination VLAN ID and second destination device ID associated with the first destination IP address are determined. The message is then modified and forwarded according to the second destination MAC address, second destination VLAN ID, and second destination device ID.

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 Shortest Path Bridge (Shortest Path Bridge, SPB), multi-link transparent interconnection (Transparent Interconnection of lots of link, TRILL), and virtual private label switching (Virtual Private Label Switching). , VPLS) network, etc., these technologies are Layer 2 tunneling technologies. These Layer 2 tunnel technologies can well support Layer 2 forwarding, Equal Cost Multi Path (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 c...

Claims

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Application Information

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Patent Type & Authority Applications(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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