I've got a setup at one of our sites where I've got several IP phones and a SPAN session copying traffic to them to a port on the same switch which is a call recorder. This works fine. We're recently added a second switch to this location which also serves IP phones. I'm trying to change from SPAN to RSPAN. For some reason, I either get no calls recorded, or the calls are nothing but silence. I've got vlan 880 configured as a remote-span vlan, and I'm just doing: monitor session 1 source interface Gi1/0/1 - 24 monitor session 1 destination remote vlan 880 monitor session 2 source remote vlan 880 monitor session 2 destination interface Gi1/0/48 on the first switch, and monitor session 1 source interface Gi1/0/1 - 6 monitor session 1 destination remote vlan 880 vlan 880 is configured as a remote span vlan on both switches and the vlan is allowed on the trunks going to the switches.
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