CAT 4000 - %SYS-4-P2_WARN: 1/Protocol Packet (is not present on cisco.com)

Unanswered Question
Jul 20th, 2007

hi,

on a switch CAT 4000 , I HAVE this error:

2007 Jul 20 11:37:59 %SYS-4-P2_WARN: 1/Protocol Packet DA=00:02:44:b1:8f:f2 SA=aa:00:04:00:fb:17 arrived on unexpected port 5/30 cnt 2115

The port 5/30 is disabled.

I don't find this error on cisco.com.

Can you help me?

thanks

Fcostalunga

I have this problem too.
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royalblues Fri, 07/20/2007 - 02:27

Though the above error is not seen in Cisco.com under the common %SYS-4-P2_WARN messages, it seems that a switch detected a loop and disabled the port.

How often are you seeing this Error? The SA is a DEC system. do use the same error if you move the source to another port?

Narayan

fcostalunga Fri, 07/20/2007 - 02:34

but , in this case , i don't understand the troubleshoothing that i can to do for to resolve my problem.

Can you have a link of this argument on cisco.com

Thanks for your help

FC

royalblues Fri, 07/20/2007 - 02:42

check the SA address in the CAM to see at what port it learns the address.

Is this being learnt at some other port rather than the one mentioned in the log...

fcostalunga Fri, 07/20/2007 - 03:01

i've search the 6 mac-address the i find in the log.

I find the 6 (six) port on this mac-address is connected.

the port is 6/40 , 6/43 , 2/40 , 2/39 , 2/42 , 5/6.

What can i do?

I can create an a VACL , or simply i disable this port?

thanks

FC

Amit Singh Fri, 07/20/2007 - 09:54

Fcostalunga,

I would like to check the complete logs for the errors that you are getting. Are you getting some "Astro timeout" errors as well. There have been a lots of bug associated with the kind of errors that you are getting and just want to be sure before getting onto this. Please sned me the complete logs.

HTH,Please rate if it does.

-amit singh

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