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

[Neils Christoffersen]

No, just WinXP workstations.

I will research unicast flooding and try the suggestions by Brian regarding
arp and mac-address-table aging. 

Thanks to everyone for the suggestions so far.

-----Original Message-----
From: Juliano Luz - Sicredi [mailto:juliano_luz at sicredi.com.br] 
Sent: Thursday, January 17, 2008 12:15 PM
To: 'Neils Christoffersen'; cisco-nsp at puck.nether.net
Subject: RES: [c-nsp] 2960 not switching packets (hub-like behavior)

Are there any Microsoft NLB Server Connected to this switch?



Juliano Luz
Analista de Redes e Telecomunicações
Infra-Estrutura de Redes e Telecomunicações
Telemática - Confederação SICREDI - Porto Alegre
+55 (51) 3358-7113
http://www.sicredi.com.br

-----Mensagem original-----
De: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] Em nome de Neils Christoffersen
Enviada em: quinta-feira, 17 de janeiro de 2008 14:10
Para: cisco-nsp at puck.nether.net
Assunto: [c-nsp] 2960 not switching packets (hub-like behavior)

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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