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Method and device for forwarding message from virtual local access network (VLAN) to virtual extensible local access network (VXLAN)

A technology for extending local area network and virtual local area network, which is applied in the field of message forwarding, and can solve the problems that layer-3 forwarding cannot be realized.

Active Publication Date: 2016-12-07
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 network shown in the figure, after the packet sent by the PC is VXLAN-encapsulated at the non-gateway node and reaches the gateway node, the gateway node decapsulates the packet with VXLAN and finds that the destination MAC address of the packet is the MAC address of the gateway node. The gateway node performs Layer 3 forwarding on the decapsulated VXLAN packets, but it is limited to the forwarding logic of the hardware switching chip on the gateway node. Even if the hardware switching chip of the gateway node supports Layer 3 forwarding, it cannot implement Layer 3 forwarding. Layer 2 forwarding of packets whose destination MAC address is not the MAC address of the gateway node after VXLAN decapsulation

Method used

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  • Method and device for forwarding message from virtual local access network (VLAN) to virtual extensible local access network (VXLAN)
  • Method and device for forwarding message from virtual local access network (VLAN) to virtual extensible local access network (VXLAN)
  • Method and device for forwarding message from virtual local access network (VLAN) to virtual extensible local access network (VXLAN)

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Embodiment Construction

[0021] 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.

[0022] 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.

[0023] The str...

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PUM

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Abstract

The invention provides a method and a device for forwarding a message from a virtual local access network (VLAN) to a virtual extensible local access network (VXLAN). A stencil of a gateway VXLAN switch does not use a mesh with a message forwarding function only but uses a chip, such as an exchange chip the same as an interface board, with a forwarding function and an entry function. Thus, the gateway VXLAN switch realizes a three-layer gateway function of the VXLAN to realize forwarding of the message from the VLAN to the VXLAN, the whole process is only executed inside the gateway VXLAN switch, not any bandwidth resources are wasted, and message wire-speed forwarding is realized.

Description

technical field [0001] The present application relates to network communication technology, in particular to a message forwarding method and device from a virtual local area network (VLAN: Virtual LocalAccess Network) to a virtual extensible local area network (VXLAN: Virtual eXtensible LocalAccess 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 network shown in the figure, after the packet sent by the PC is VXLAN-encapsulated at the non-gateway node and reaches the gateway node, the gateway node decapsulates the packet with VXLAN and finds that the destination MAC address of the packet is the MAC address of the gateway node. The gateway node performs Layer 3 forwarding on the decapsulated VXLAN packets, but it is limited to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/46H04L29/12H04L45/74H04L49/111
CPCH04L61/2596H04L49/25H04L12/4641H04L12/4625H04L49/3009H04L49/30H04L2012/4629H04L12/4633H04L45/745H04L61/59H04L2101/622H04L12/4645H04L61/2592
Inventor 张洋况玲王明辉张鸿源胡海闻广亮
Owner NEW H3C TECH CO LTD
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