Packet Forwarding Method and System

摘要

A packet forwarding method and system. A first network device encapsulates a to-be-forwarded packet as a first packet, and sends the first packet to a second network device, where the first packet carries a destination Media Access Control (MAC) address encapsulation instruction, the destination MAC address encapsulation instruction is used to instruct the second network device to encapsulate a destination MAC address for the first packet, the to-be-forwarded packet carries a destination internet protocol (IP) address, and the destination MAC address is a MAC address of a destination host corresponding to the destination IP address; the second network device generates a second packet containing the destination MAC address according to the destination MAC address encapsulation instruction carried by the received first packet, and forwards the second packet to the destination host corresponding to the destination MAC address.

主权项

1. A packet forwarding method comprising:
encapsulating, by a first network device, a to-be-forwarded packet as a first packet; sending the first packet to a second network device, wherein the first packet carries a destination Media Access Control (MAC) address encapsulation instruction, wherein the destination MAC address encapsulation instruction is used to instruct the second network device to encapsulate a destination MAC address for the first packet, wherein the to-be-forwarded packet carries a destination Internet Protocol (IP) address, and wherein the destination MAC address is a MAC address of a destination host corresponding to the destination IP address; generating, by the second network device, a second packet containing the destination MAC address according to the destination MAC address encapsulation instruction carried by the received first packet; and forwarding, by the second network device, the second packet to the destination host corresponding to the destination MAC address.