A message forwarding method and device

Abstract

The present disclosure provides a message forwarding method and device, wherein the method is applied to a PE device in a port expansion PE stack; the method may include: receiving a message from a local ingress port; searching the stored local A forwarding entry, forwarding the packet through the local egress port corresponding to the local ingress port in the local forwarding entry. The disclosure realizes more flexible equipment selection of the PE stacking system.

Description

technical field [0001] The present disclosure relates to communication technologies, and in particular to a message forwarding method and device. Background technique [0002] In order to meet the requirements of the data center, a stacking network is proposed in related technologies. For example, CBs (controlbridges, control bridges) are connected through stacking links to form a CB stacking system, and PEs (port extenders, port extensions) are connected to CBs and serve as CBs. The remote interface board provides the port expansion function, and the packets received by the PEs are sent to the CB, which looks up the table and forwards them. To save the uplink from PE to CB, multiple independent PEs can also be connected through stack links to form a PE stack system. After packets are received by the ingress PE of the PE stack system, they pass through the packet File forwarding sends the packet out of the stack system to the CB, or the PE stack system sends the packet rece...

AI Technical Summary

Problems solved by technology

[0003] When the current PE stacking system forwards packets, it is necessary to insert a tag into the packet so that each PE in the stacking system forwards packets according to the tag. However, this method will limit the implementation of PE stacking to support tag encapsulation. For example, only PEs of the same model from the same manufacturer can be stacked.

Images