How to configure Cisco switch with port mirroring for 4 different VLAN's?

Hi guys

I need to set up port mirroring for around 4 of our VLAN's. At the moment we have VLAN1 (default), VLAN 2, VLAN3 and VLAN10.

I have a stacked Cisco 3750x switch. There are two of them. I want to do port mirroring for each of these VLAN's  on the second switch.

So when I run 'show ip int br' i can see that it displays the second switch with the interface name 'GigabitEthernet2'. I want ports 13-7 to have port mirroring for each of those VLAN's above.

What commands would you run to make that happen?

Thanks for helping
Yashy
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YashyAsked:
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atlas_shudderedSr. Network EngineerCommented:
Yashy -

Not sure I really understand what you are trying to accomplish.  Are you trying to mirror the VLAN traffic for VLANs 1,2,3 and 10 to port 2/0/2 on your 3750 stack?  Or are you trying to mirror the traffic from those VLANs to ports 2/0/7-13 on the switch?
1
lrmooreCommented:
Just create 4 separate monitor sessions for one VLAN to one mirror port. I think this is what you are asking..

mon sess 1 source vlan 1
mon sess 1 destination interface G2/0/7

mon sess 2 source vlan 2
mon sess 2 destination interface G2/0/8

mon sess 3 source vlan 3
mon sess 3 destination interface G2/0/9

mon sess 4 source vlan 10
mon sess 4 destination interface G2/0/10
1

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YashyAuthor Commented:
hi guys

Apologies, been sick as a dog. So basically we wanted to plug in a network monitoring device to sit on the network and listen to all of the VLAN's. A little bit like what wireshark would do. This device just listens to the network and the technician who installed it in the end said he said up VLAN mirroring for each VLAN in the end which is what Lrmoore mentioned.

However, I can't seem to be able to do a 'best solution' along with an 'assisted' solution anymore?

Cheers
Yash
0
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