Spanning Tree error? 1

[jspuelles]

Hi all,
I have a problem with several Catalyst 2924 and Catalyst 5500: at the same time in different sites appears blocked the port which is connected to router. The error reported by switch is this: "00:00:55: %SPANTREE-2-RECV_1Q_NON_TRUNK: Received 802.1Q BPDU on non trunk FastEthernet0/1 on vlan 1.
00:00:55: %SPANTREE-2-BLOCK_PORT_TYPE: Blocking FastEthernet0/1 on vlan 1.Inconsistent port type."

I restored the communication disabling spanning tree in every Catalyst(and physics links) but I don´t know which is the reason of this problem, and I need to enable ST again.

Thanks

JS-P

 

[vallan]

What level of code are you on?. When I had problems with blocked or unblocked port I had to upgrade my code level to get rid of this as it was reported as a code level bug.

Cheers

 

[BuckWeet]

Well that message is saying that the catalyst 5500 port connected to the 2924 is setup as a trunk port, and the 2924 port is not setup as a trunk port..

You need to turn trunking on, on both switches, or turn it off on both switches..


BuckWeet

 

[jspuelles]

-------
Thank you Allan, but how I know my level of code?
-------
Thank you BuckWeet, 5500 and 2924 is not connected directly, there are two routers among them, but your solution it´s good. It´s true that if I turn trunking on on switches the problem dissappear. ((But.... I don´t understand why this system had been working correctly without problems during months, and suddenly breaks...))

Regards,

JS-P

 

[vallan]

Your question has been answered but for you to know your code level, at the prompt do

show version

and you can read the level of code from the result.

All the best.

 

[jgercken]

do a sh cdp neighbors. If there is a trunk mismatch or managment vlan mismatch it will be indicated.
-Jeff ----------------------------------------
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