| 摘要 |
A method for forwarding a packet is provided, which includes configuring a cascade port of a switch chip to operate in an internal loopback mode, performing a termination processing for the packet, looping the packet after the termination processing back to the cascade port, initializing the loopback packet and forwarding the packet. A switch chip is also provided. With the technical solutions of the disclosure, packet forwarding in both uplink and downlink directions in MPLS VPN can be implemented by using a single PE and a single port. |
