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Message forwarding method and equipment of TRILL network

A multi-link transparent and message forwarding technology, applied in the field of message forwarding

Active Publication Date: 2015-08-05
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] for example, figure 1 In the shown network, the message sent by the PC is TRILL-encapsulated at the non-gateway node and reaches the gateway node. The gateway node performs TRILL decapsulation on the message and finds that the destination MAC address of the message is the MAC address of the gateway node. The gateway node forwards the packet at Layer 3, but it is limited to the forwarding logic of the hardware switch chip on the gateway node. Even if the hardware switch chip of the gateway node supports Layer 3 forwarding, the gateway node can only forward the packet after decapsulation. Layer 2 Forwarding

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  • Message forwarding method and equipment of TRILL network
  • Message forwarding method and equipment of TRILL network
  • Message forwarding method and equipment of TRILL network

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] A general modular switch consists of a main control board (main board), an interface board (I / O board), and a fabric board (fabric board). The main control board is a single board used to implement protocol stack calculation, forwarding table item delivery and control, and device management. The interface board is a single board for implementing data packet forwarding (including internal forwarding and external forwarding). The network board is a single board used to realize the inter-board and inter-chip forwarding of data packets and control packets within the device. Wherein, the chip on the network board only has the message forwarding function, and is used for transferring messages between different interface boards.

[0022] The str...

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Abstract

The application provides a message forwarding method and equipment of a network of transparent interconnect of lots of links (TRILL). According to the invention, An I / O board of a gateway route bridge (RB) receives a message packaged by the TRILL, carries out TRILL de-encapsulation on the message, determines to carry out three-layer forwarding on the message processed by the TRILL de-encapsulation, and then sends the message processed by the TRILL de-encapsulation to a fabric board of the RB for three-layer forwarding; and then the fabric board sends the message after the executed three-layer forwarding to the corresponding I / O board for forwarding, thereby realizing message forwarding of the TRILL network. Therefore, the function of three-layer access of the TRILL is realized by the same gateway RB and the whole process is executed only inside the gateway RB, so that no bandwidth resource is wasted and an objective of wire-speed forwarding of the message is achieved.

Description

technical field [0001] The present application relates to network communication technology, in particular to a message forwarding method and device for a Transparent Interconnect of lots of links (TRILL) network. Background technique [0002] At present, even if the hardware switching chip of the gateway node supports Layer 3 forwarding, the forwarding logic of the hardware switching chip does not allow Layer 3 forwarding and can only perform Layer 2 forwarding. [0003] for example, figure 1 In the shown network, the message sent by the PC is TRILL-encapsulated at the non-gateway node and reaches the gateway node. The gateway node performs TRILL decapsulation on the message and finds that the destination MAC address of the message is the MAC address of the gateway node. The gateway node forwards the packet at Layer 3, but it is limited to the forwarding logic of the hardware switch chip on the gateway node. Even if the hardware switch chip of the gateway node supports Laye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/715H04L12/741H04L45/74
Inventor 王明辉张洋况玲张鸿源胡海闻广亮
Owner NEW H3C TECH CO LTD
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