Patent ID: 9602461
Date: 2017-03-21
CPC Classifications: H04L,H04W,Y02D

Claim:
1. A service forwarding method comprising: receiving an uplink packet of a base station that is sent by a user-end provider edge (UPE) device over a transport tunnel, wherein the transport tunnel is between the UPE device and an edge device, wherein the uplink packet carries an Internet Protocol (IP) address of the base station and an identifier of the transport tunnel, wherein the receiving the uplink packet comprises receiving an uplink protocol packet of the base station that is sent by the UPE device over the transport tunnel, wherein the uplink protocol packet carries an interface IP address of the base station and the identifier of the transport tunnel; establishing a mapping relationship between the IP address of the base station and the identifier of the transport tunnel according to the uplink packet, wherein the establishing of the mapping relationship comprises establishing a mapping relationship between the interface IP address of the base station and the identifier of the transport tunnel according to the uplink protocol packet; and sending a downlink service packet to the UPE device over the transport tunnel according to the mapping relationship, wherein a destination IP address of the downlink service packet is the IP address of the base station.