| 摘要 |
The present invention discloses a method and a system for forwarding data between provider Ethernet networks, wherein a first provider Ethernet network is the first provider Ethernet network in a path through which a first data packet is transmitted, and a second provider Ethernet network is the last provider Ethernet network in the path. The method includes using network addresses of the first provider Ethernet network and the second provider Ethernet network as a source address and a destination address of an outer MAC header with which the first data packet is encapsulated when the first data packet is transmitted between the first provider Ethernet network and the second provider Ethernet network; and decapsulating the first data packet and forwarding the decapsulated data packet to the second client network after the first data packet is forwarded to the second provider Ethernet network.
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