Message forwarding method and device

A device and message technology, applied in the communication field, can solve problems such as limiting the scale of CB-PE networking, being unable to connect PE devices, and weakening the advantages of the CB-PE solution, so as to achieve the effect of increasing capacity

Active Publication Date: 2013-06-19
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] If there are 16 CB devices stacked, it will no longer be possible to connect PE devices
This greatly limits the network scale of CB-PE,

Method used

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  • Message forwarding method and device

Examples

Experimental program
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Example Embodiment

[0024] In view of the problems existing in the prior art, in the embodiment of the present invention, the chip in the PE device is assigned a local identification (hereinafter referred to as Local Unit ID) and a global identification (hereinafter referred to as Global Unit ID), and the CB device records the Local Unit ID The mapping relationship with Global Unit ID. After the CB device receives the Ethernet packet encapsulated with the forwarding header sent by the PE device, it maps the source Mod in the forwarding header (such as the HG header) from the Local Unit ID to the corresponding Global Unit ID When the CB device sends an Ethernet packet encapsulating the forwarding header to the PE device, it maps the destination Mod in the forwarding header from the Global Unit ID to the corresponding Local Unit ID, thereby avoiding the virtual system’s network scale from being affected by the virtual system. The limit on the number of chips supported by the devices with the lowest p...

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Abstract

The invention discloses a message forwarding method and device. The method and the device are applied to a virtual system comprising core backbones (CBs) and port extenders (PEs), device identification of each PE and local unit identification and global unit identification of chips in each PE are configured on each CB, the local unit identifications in corresponding PEs uniquely identify the chips in the PEs, and the global unit identifications uniquely identify the chips in the virtual system. The method includes that after the CBs receive redirected messages of the PEs from downlink ports of the CBs, source chip identifications in the messages are mapped to corresponding global unit identifications from the local unit identifications, forwarding table entry study is performed according to the global unit identifications, and when the messages are forwarded to the PEs from the downlink ports of the CBs, destination chip identifications in the messages are mapped to the local unit identifications from the global unit identifications. By means of the message forwarding method and device, the capacity of the virtual system can be increased.

Description

technical field [0001] The present invention relates to the communication field, in particular to a message forwarding method and equipment. Background technique [0002] In the data center, mixed access of Gigabit devices and 10 Gigabit devices is one of the current networking methods. It is a development trend of current data center technology to realize a single management domain by means of a virtualized access network, reduce network layers, and flatten management. [0003] In order to meet the requirements of the data center, a two-level stacked CB (Core Backbone, core backbone device)-PE (Port Extender, port extension device) networking solution is proposed. The networking architecture is as follows: figure 1 shown. Each PE device is connected to the CB device, and PE devices are not connected through stack links. In practical applications, special cascading ports connected to PE devices are configured on the CB device, and the devices connected to these ports are ...

Claims

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Application Information

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IPC IPC(8): H04L12/883H04L12/46H04L29/12H04L49/9015H04L45/74
CPCH04L45/66H04L49/70H04L49/351H04L45/745H04L45/021H04L45/72
Inventor 王明辉祁正林
Owner NEW H3C TECH CO LTD
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