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Message forwarding method and equipment from vlan to trill network

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

Active Publication Date: 2018-05-11
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

Method used

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  • Message forwarding method and equipment from vlan to trill network
  • Message forwarding method and equipment from vlan to trill network
  • Message forwarding method and equipment 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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PUM

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Abstract

This application provides a message forwarding method and equipment from a VLAN to a TRILL network. In the present invention, when the interface board of the gateway RB receives the message of the VLAN, it first performs three-layer forwarding on the message, and sends the message after the three-layer forwarding to the network board of the gateway RB for two-layer TRILL forwarding. The packets forwarded by the TRILL layer are sent to the corresponding interface board for TRILL encapsulation and forwarded to the TRILL network, finally realizing the packet forwarding from the VLAN to the TRILL network. In the present invention, a gateway RB realizes the three-layer access from VLAN to TRILL, and the whole process is only executed inside the gateway RB, without wasting any bandwidth resources, and the purpose of wire-speed forwarding of messages is achieved.

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 Patents(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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