| 摘要 |
A telecommunications network comprising first and second access equipment on one side of the network and third and fourth access equipment on another side of the network, a respective communication link is provided between the first and the third access equipment and between the second and fourth access equipment, and further, a communication link is provided between the first and the second access equipment, and between the third and fourth access equipment, each access equipment providing an interface for communication with the network, and each access equipment is configured to be capable of causing a change in the path followed by at least some of the traffic conveyed over the communication links.
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