I am setting up a Cat 3550 SMI for silent monitoring. It looks like I have to be able to span both rx and tx (agent phones) to the destination port (IPCC server).
The problem is I have 7 agent phones and the 3550 will only span rx & tx on ONE source port per span session, unlike the Cat3524pwr.
I have thought about spanning the port from the gateway (single T1 pri), but that means spanning ALL voice traffic, not just the Call Center. Note, all voice traffic is on a single vlan, this is a small system.
On a 3550 the SPAN port does not support bi-directional communication. You need to setup the second port on the CRS server. Then, make sure you have the voice gateway and the CRS server second NIC plugged into the same switch. Lastly, just SPAN the port the voice gateway is plugged into. That way, if all your agents are in the same VLAN you can monitor Agent to PSTN calls. Post more questions if you have any, I have to run out and can post more specific instructions later. Hope this gets you started. Link below walks you through setting up second NIC on an already built system.
Thanks, that makes sense. Yes, we have set up the second NIC on the server. The system went live yesterday and I will wait for things to settle down before implementing Silent Monitor.
Theory question: Once I SPAN the gateway to the Server, how does Silent Monitor recognize each call flow? By destination IP (the phone), or is the DN hidden in the UDP packets? I'm assuming it filters out all traffic except RTP packets.
Is it necessary to install a seoncd NIC on the CRS server. The document that describes how to set up silent monitoring and recording say that a second NIC is necessary when access switches that have agent phone attached are trunked back to a distribution switch. Basically my scenario is a small installation where I have a 3550 switch, 8 agent phones and an IPCC server running 3.1.2. I've read other posts (along with some content mentioned in this one) that I can just enable a SPAN source port on the Gateway and a SPAN destination port where my IPCC server is plugged into. Is that correct? If so, this is the config I am looking at.. Please verify if it is correct. Thanks a lot for any help.
Fastethernet 0/1 will be the gateway and 0/10 will be the server.
You would not have the same issue on a 3524, one NIC will work. As for your config, that will work. However, don't you want to monitor Agent > PSTN calls or just Agent to Agent calls. If you want to monitor PSTN > Agent calls you will also need to span the port the Voice Gateway is plugged into.
Thank you again for your reply. It seems like the SPAN feature is a little nicer on the 3524 and this network has both a 3524 and a 3550 connected together using the gigastack GBICs. I used the configuration I sent in my last post and included the gateway port as well. I tested it yesterday and it seems to be working well. Thanks a lot for your help.
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Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...