[c-nsp] 2960 not switching packets (hub-like behavior)

Jeff Fitzwater jfitz at Princeton.EDU
Thu Jan 17 12:01:01 EST 2008


It could be just UNKNOWN UNICAST packets.  Thats normal until the  
switch learns them on a specific interface.


Jeff Fitzwater
OIT Network Systems
Princeton University
On Jan 17, 2008, at 11:10 AM, Neils Christoffersen wrote:

> I have a WS-C2960-48TT-L running c2960-lanbasek9-mz.122-25.SEE4
>
> Sniffing traffic on a connected workstation, I can see unicast traffic
> destined for other systems connected to the switch. I know this  
> isn't normal
> behavior but I have been unable to diagnose the problem. Reloading  
> did not
> resolve it.
>
> This is a very simple configuration (single switch behind a  
> firewall, no
> vlans) and the network is not highly utilized.
>
> Suggestions?
>
>
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