• Author : Neeraj Joseph

 
 

PHY test pattern CLI

The PHY test pattern CLI can be used to check the quality of the physical layer for an Ethernet interface. This is done by generating a specific test pattern to a peer, and having the peer check the test pattern that is received, and vice versa. Because the test pattern is a well-known sequence of bits, the peer can check that the pattern received matches this well-known sequence; any difference is a bit error introduced by the peculiarities of the physical layer. Quality of the link could be determined based on the acceptable bit errors, as published by the hardware...
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