I have a setup with 2 DC . There's couple of voice gateway and cucm in each DC. <br><br>There's a couple of distribution switches as well. <br><br>Between 2 DC and distribution switches are all L3. <br><br>Today, my requirement is only to span a few ports connected to the access switches of distribution switch "A". If I do a rspan from those IP phones back to distribution switch "A" and I will connect the voice recorder to distribution switch "A", will it work? <br>
<br>Is it neccessary for me to span the traffic from cucm and voice gateway as well? If so, ERSPAN is required. <br>