I connect a cat 4006 with a cat 2950 by a fiber link
now the port LED on 4006 is green, but on the other end of the fiber link, the 2950's port LED stays amber
sh int gig 0/0 shows that both the link and the protocol on the 2950's GBIC port is up, and I can use sh cdp nei to successfully discover the 4006
could someone tell me what the problem is?
thanks a lot