| 摘要 |
A communication system comprising: a first device; a second device; and communication cabling comprising four twisted wire pairs arranged to enable communication between the first device and the second device; the first and the second devices being operable to perform auto-negotiation on a communication path comprising a first two of the four twisted wire pairs, and to perform auto-negotiation on a communication path comprising a second two of the four twisted wire pairs, the second two twisted wire pairs being distinct from the first two twisted wire pairs, the first and second devices being operable to enable communication on the communication path comprising the second two twisted wire pairs in the event of a failure of the auto-negotiation on said communication path comprising said first two twisted wire pairs.
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