METHOD, DEVICE AND SYSTEM FOR FORWARDING PACKET

摘要

Disclosed are a method, device and system for forwarding a packet, which are applicable to the scenario in which a customer edge (CE) is connected to an Ethernet virtual private network (EVPN) by means of dual homing through a first provider edge (PE) and a second PE, wherein an Ethernet link is established between the first PE and the second PE. The method comprises: the first PE establishes a port isolation group; the first PE receives, through a port at the side of the first PE in the Ethernet link, a packet forwarded by the second PE; and the first PE forwards the packet to a CE connected to ports other than the port isolation group in the first PE. By means of the present invention, the technical problem in the prior art of traffic passing back at the customer side during packet forwarding in the EVPN can be effectively solved without changing the current hardware chip design.