error message on ivalid port number

[pcollard]

On a catalyst 5500, I have received this error message :

%SYS-4-P2_WARN: 4/Invalid traffic from multicast source address 55:57:8e:f8:e5:7b on port 4/59

My problem is that I have only 9 ports on module 4

Somebody can explain it ?

[Georg Pauwen]

Hello,

which CatOS version are you using ? This might be a software bug...

Regards,

GP

[pcollard]

5.1(1)

Regards

[pflunkert]

Find you the mac-adress in the mac-adress table?

[Prashanth Krishnappa · Accepted solution]

On the Catalyst 5500 with a WS-X5410, 9 port Gigabit Line Card module, some of the system logging messages and show commands may reference what

appears to be an invalid port. The ports that may be referenced include /58,/59, /60.

An example syslog message is as follows:

%SYS-4-P2_WARN: 1/Invalid traffic from multicast source address

81:00:01:00:00:00 on port 4/58

The WS-X5410, 9 port Gigabit Line Card, is similar in architecture to a Catalyst 4912G on a blade. The internal architecture of the WS-X5410 acts as a stand-alone switch with 3 gigabit interfaces that connect to the backplane of the switch. From the syslog perspective of the Catalyst 5500, the ports will show up as /58,/59, or /60 and not the actually front panel ports on the WS-X5410. Due to the load balancing nature of the 3 internal ports, the port references /58,/59, or /60 cannot be mapped to a front panel port. Troubleshooting any issue with these references requires treating the WS-X5410 as a stand-alone switch.

Here is a reference to this message on CCO

http://www.cisco.com/warp/public/473/176.html#subtopic1m