Message forwarding method and device

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 ...

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, making the number of PE devices connected to CB devices relatively small, and the advantages of the CB-PE solution will be greatly weakened.

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