The Problem may be the Cable or Crimping. The Switch may Expect two Pairs.
The LED will glow even one pair is correct. Check the Connectivity by
changing the Cable.

Regards
siddiqu.T




-- 
T. Mohamed Abubakkar Siddiqu CCNA





---- "Don Dettmore" <[EMAIL PROTECTED]> wrote:
> Here is an interesting problem.
> 
> I have a client with a Cisco 2924XL switch.  Most stations are
> directly connected to the switch, however off of one of the switch
> ports is an old Bay 10mb/s hub.  
> 
> The problem is that stations connected to the hub cannot communicate
> with stations connected to the switch.  Switch stations CAN
> communicate with switch stations, and hub stations CAN communicate
> with hub stations.
> 
> The switch port connected to the hub appears to recognize the hub -
> it is up/up and has detected 10mb half duplex.  I tried manually
> entering these settings with no effect.
> 
> It appears to be an arp problem - if I debug arp and then try to ping
> a station connected to the hub, arps are sent out, but no replys are
> received.  This happens whether the switch itself tries to ping a hub
> host, or a if a switch station does so.  Interestingly enough tho,
> if
> a hub station pings another hub station, the arp shows up on the
> switch debug console - it is definitely seeing the traffic!
> 
> Any suggestions would be greatly appreciated.  
> 
> Thanks! 
> 
> Don Dettmore
> CCNP, MCSE, CNE
> 
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