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Voice VLANS

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jonks

Technical User
Jun 18, 2001
158
US
I would like to roll out some IP phones to our main site hoevever we do not have cisco switches on our LAN.. In our Branch office we runn cisco switches which automatically create the voice VLAN and trunk the data vlan to the PC port of the phone.

I am trying to create a similar connection using my Nortel switches and VLANS.

Does anyone know whether i can create 2 VLANS on my Nortel switches that will be recognised by the Phone so it can seperate to two VLANs.

Hope this makes sense

 
I do not believe there is anyway to configure a Cisco phone to work with a Nortel Switch like it does with a Cisco Switch. The would eliminate a competitive advantage. I say this because the Cisco switch and the Cisco phone use CDP to recognize each other. Once the switch sees that their is phone connected it checks for the voice vlan statement. It that statement exists, it puts all voice tagged packets on the voice vlan. Nortel does not support the proprietary CDP protocol (at least I don't think it does). The only choice you have is to put the port that the phone is plugged into on the voice vlan using a manual config or dynamic vlan assignment (assuming you have that capability). Another option is to add some old 3524xls to the closet and patch down the phones to the those instead of the Nortel switches. If all else fails, replace the Nortel switches with Cisco ones.



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I thought that might be the answer. Thanks for your help.
 
Pull up your guide for the nortel switch.. It does support this.... Voice vlan support is nothing new.. Vendors have been using the same principal for other things.. The only thing is that it will not be autoassigned via CDPv2.(nortel does not run CDP) but you can hardcode this info.
Pretty much all this is on Nortel or bay switches is support for swithcing both tagged and untagged frames on the same port.
 
How would i confiure that on the a port basis

I have created two vlans on a switch one voice one data. Have tagged the port so it can pass both vlans. Phone can connect via voice vlan but PC wont connect via data vlan. Have you any ideas what i am doing wrong
 
Jonks go to the notrel site and find support for I2002 or 2004 phones on the switch you want to configure... Cisco phones will support the same config
 
The data vlan is set by the PVID setting for the individual port. The PVID you set for ant port that a PC connects to must be set to agree with the data vlan number.
 
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