Message forwarding method and device

Abstract

The embodiment of the invention provides a message forwarding method and device. The message forwarding method comprises the steps of receiving a to-be-forwarded message which is received by a receiving port of an Ethernet switch and comprises the port number of the receiving port; determining the port number of an output port which corresponds to the port number of the receiving port based on a preset corresponding relationship between the port number of each receiving port and the port number of each output port; and sending the to-be-forwarded message to the output port based on the port number of the output port. By adding functional modules to an existing Ethernet switch in the embodiment, the existing Ethernet switch can realize functions of an all-optical switch; all the Ethernet switches in the existing communication network are not required to be replaced by the all-optical switches, so that the cost of the communication network is greatly saved.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a packet forwarding method and device. Background technique [0002] In the field of communication technology, an Ethernet switch is a switch that transmits data based on Ethernet, and each port of the Ethernet switch is directly connected to a host, and generally works in a full-duplex mode. [0003] The Ethernet switch forwards the packet according to the destination MAC address of the received packet. When the destination MAC address of the packet is not in the MAC address table of the switch, the switch broadcasts the packet in the local area network to which it belongs. The host with the destination MAC address will respond to the broadcast. After the switch receives the response, it records the MAC address of the responding host and the port on which the switch receives the response in the MAC address table, that is, the switch establishe...

AI Technical Summary

Problems solved by technology

[0004] With the development of communication technology, an all-optical switch appears. Compared with an Ethernet switch, the all-optical switch greatly improves the packet forwarding efficiency. The reason is that the all-optical switch does not establish a MAC address table by dynamically learning The corresponding relationship between the preset ingress port and the egress port, the packet received by an ingress port is directly forwarded to the egress port corresponding to the ingress port, and the egress port sends the packet out. The cost is higher than that of Ethernet switches. If all Ethernet switches in the existing communication network are replaced with all-optical switches, the cost of the communication network will be greatly increased

Images