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Message forwarding method from virtual local area network (VLAN) to transparent interconnect of lots of links (TRILL) network and message forwarding device from VLAN to TRILL network

A message forwarding and message technology, applied in the field of network communication

Active Publication Date: 2015-10-07
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Message forwarding method from virtual local area network (VLAN) to transparent interconnect of lots of links (TRILL) network and message forwarding device from VLAN to TRILL network
  • Message forwarding method from virtual local area network (VLAN) to transparent interconnect of lots of links (TRILL) network and message forwarding device from VLAN to TRILL network
  • Message forwarding method from virtual local area network (VLAN) to transparent interconnect of lots of links (TRILL) network and message forwarding device from VLAN to TRILL network

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Embodiment Construction

[0019] 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.

[0020] 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.

[0021] The str...

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Abstract

The application provides a message forwarding method from a VLAN to a TRILL network and a message forwarding device from the VLAN to the TRILL network. The method of the present invention is characterized in that when an interface board of a gateway routing bridge (RB) receives a message of the VLAN, the interface board firstly executes the three-layer forwarding on the message, the message after the three-layer forwarding is sent to a screen of the gateway RB for the two-layer TRILL forwarding, and the screen sends the message of the two-layer TRILL forwarding to the corresponding interface board to carry out the TRILL package and forward to the TRILL network, thereby finally realizing the message forwarding from the VLAN to the TRILL network. According to the present invention, one gateway realizes the three-layer access from the VLAN to the TRILL, and the whole process is only executed inside the gateway RB, thereby not wasting any bandwidth resource, and achieving the purpose of message line speed forwarding.

Description

technical field [0001] The present application relates to network communication technology, in particular to a method and device for realizing message forwarding from a virtual local area network (VLAN: Virtual Local Area Network) to a multi-link transparent connection (TRILL: Transparent Interconnect of lots of links) 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 logi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/723H04L12/741H04L45/50H04L45/74
CPCH04L45/50H04L45/74H04L45/745H04L12/4658H04L12/4633
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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