[c-nsp] RSPAN and IP phones

[Steven Pfister]

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.

Please try our new DPS mobile app!   Available in the Google Playstore
(android) or Apple iTunes store.  Android:
https://play.google.com/store/apps/details?id=com.relianceco.cma.daytonps&hl=en
 Apple:
https://itunes.apple.com/us/app/dayton-public-schools/id1143389548?mt=8