| 摘要 |
A communication system is configured to include a plurality of edge nodes each coupled to a user network, and a plurality of point-to-point links each coupling a pair of edge nodes. Any pair of edge nodes is coupled via a point-to-point link included in the plurality of point-to-point links. When transmitting a first packet from a first user network coupled to a first edge node, to a second user network coupled to a second edge node, the first edge node creates a second packet by adding an ingress node identifier identifying the first edge node to the first packet received from the first user network. The second packet is forwarded among the plurality of edge nodes via point-to-point links, based on the ingress node identifier in the second packet and forwarding control information held in the each of the plurality of edge nodes.
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