Port mirroring on a 4507

Unanswered Question
Jun 18th, 2008
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I'm trying to mirror traffic from one port on the switch to another one.


What i'm doing so far is the following:


monitor session 1 source interface Gi3/1

monitor session 1 destination interface Gi3/29


But the problem is that Line Protocol is down on por 29.


I've been reading a little and looks like i need to add the commands "ingress vlan"


I tried this and port 29 still says line protocol down. Am i missing something?


Thanks

Zeek

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hennigan Wed, 06/18/2008 - 14:36
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It sounds like a physical layer problem. Have you verified the NIC and cables of the sniffer? If you plug the same sniffer and cable into a different port than Gi3/29, does that port come up?

merryllem Wed, 06/18/2008 - 14:48
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Does it looking something like this


GigabitEthernet3/29 is up, line protocol is down (monitoring)



Zeek Ferraros Wed, 06/18/2008 - 14:51
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My bad.

I was adding the wrong Vlan #.

After i added the right vlan it fired right up.

Thank you,

zeek

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