[c-nsp] Strange Cisco Behavior on Switches Catalyst 3550

[Michael Smith]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Alexandra Alvarado
> Sent: Wednesday, November 24, 2004 5:15 AM
> To: Alexandra Alvarado; cisco-nsp at puck.nether.net
> Subject: [c-nsp] Strange Cisco Behavior on Switches Catalyst 3550
> 
> 
>     Hello,
> 
>     PROBLEM: Today I had the same problem 3 times.  I use Catalyst
> 3550 switches.  The problem was that suddenly clients loss the
> internet access service; and the switch that conects this clients
> lost "the routing capacity", what I mean is that
>     I can access via telnet to that switch only since another
> device with the same network, after reboot the switch
>     all was fine.  But I can't find any cause of this problem and I
> don't have any syslog message.
> 
>     I saw some inconsistency in the switch configuration:
> 
>     1) "spanning-tree bpduguard enable" this is in ports thas no
> has "spanning-tree portfast"
>     2) spanning-tree portfast
>          spanning-tree bpduguard enable
>          "spanning-tree guard root" this command has no consistency
> with bpudguard
> 
>     Could this configuration cause the problem mentioned above, and
> If no what could be the real cause of the problem?
> 
> 
>     Thanks
> 
> 
>     Alexandra Alvarado
>

Hello:

Are you sure you trapping all events to your log?  Have you:

"snmp-server enable traps" (which will show up with about 10 lines of
traps

Mike

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQabPCpzgx7Y34AxGEQKy2ACaAz3LLhNxo29IuJ1eTW6Bwcec0BUAmgK+
q3Z0mSaWx5kISfAxeeedFowr
=9m1B
-----END PGP SIGNATURE-----