Question about VoIP VLan CS1000 and VGCM card

[180990]

Hardware ERS5520 I1140E phones, CS1000 signaling server
Created voice vlan 102 using ADAC, configured LLDP for the ports we expect to connect IP phones and enabled adac on those ports.

5520-48T-PWR (config)# interface fastEthernet 30-44

My questions are:

Do I connect CS1000 and VGMC media card to one of the voice vlan ports (30-44) where ADAC LLDP MED is used to detect and provision phones? Or Should I create a separate voice vlan for those two devices (CS1000, VGMC card) configure QoS to accommodate voice traffic on it?

Thanks i advance

 

[DaddyOfThree]

It more a question of how large your going to grow your network and your VoIP footprint.

The Succession Call Server (CS1000) and Signaling Servers will not speak LLDP or ADAC, there's no need for them to speak those protocols since they are going to be statically configured for a fixed VLAN and port settings. Hopefully you already know that there are two connections for each, a TLAN (100Mbps) and ELAN (10Mbps). The TLAN is where the actual voice (RTP) traffic will traverse while the ELAN is like a private control network for each of the components to communicate together.

If you have a core switch I would advise you place the connections on that switch and then just configure each port for "trusted" QoS.

Good Luck!

 

[180990]

Thanks DaddyofThree for this great tip.

As far as QoS goes, the steps to configure it are:

- Configure a layer 2 element
- Add classifier element
- Add policy, in this part from point of your experience which method is better to use?

Is it the Remarking Voice Traffic using classifier element configured earlier or use method where your Trust Voice Markings from TLAN by creating a new interface group with class of trusted and add a Policy to with an in-profile action of null for the voice TLAN and out-of-profile action of Standard

 

[DaddyOfThree]

You could certainly re-mark the packets. I personally chose to just trust the TLAN and ELAN interfaces and then trust the uplinks/downlinks into/outof the switches. This way any QoS re-mark occurs on the edge of the network and you simply trust the QoS markings between your switches.

Cheers!