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port mirror problem

I have recently configured port mirroring in my Cisco 4000 series switch.. Now it is not working .. I m getting the following error.

GigabitEthernet2/9 is up, line protocol is down (monitoring)

How can i rectify.. In the switch , Cable is connected properly.. The light is glowing fine. what could be the problem..

2 REPLIES

Re: port mirror problem

Your port looks fine and that is normal for a port in monitoring mode. Are you not receiving traffic from that port to your sniffer?

Mark

Re: port mirror problem

I'm not trying to question anything, but you need to make sure that you are connected to the destination port that you're monitoring from. Like Mark said, g2/9 looks fine.

Your source port is g2/9, but your device needs to be connected to the destination port as well.

--John

HTH, John *** Please rate all useful posts ***
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