MAC address confusion

Grzegorz Banasiak gbonthenet at
Sat Feb 28 17:22:33 UTC 2009

> Whic one of these, is locally assigned unicast MAC address, when talking about
> output format CSCO uses?
> 4000.0000.0000 (Local IXPs choice)
> 0200.0000.0000 (My money is here)

the second one. most significant byte is on the left, but within the
byte, most significant bits are on the right. so U/L bit is the second
one counting from the left.

> 02-07-01   (hex)                RACAL-DATACOM

good point, dunno.

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