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native vlan question

Posted on 2011-03-03
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Last Modified: 2012-05-11
Here is the situation:  We have a new site that we are going to bring up data and voice on the same switch port using cisco 2960s poe switches,  the building has 3 floors and our group has talked about creating a geographical (different) vlan for the data on each floor and all floors using the same vlan for voice.  We are configuring the switch ports as trunks and will be using Avaya 9611g ip phones so my question is:  can I have a seperate native vlan for each floor since each floor will have a different vlan id for the data side ?  I think we plan on configuring vtp also.  If any one has a document that explains this it would be much appreciated along with you thoughts on this subject.

thanks
rick
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Question by:carters1956
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Don Johnston earned 125 total points
ID: 35026429
> can I have a seperate native vlan for each floor since each floor will have a different vlan id for the data side ?

Yes.

>I think we plan on configuring vtp also.

No problem here.

Here's your link:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.1_19_ea1/configuration/guide/swvoip.html
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Expert Comment

by:hon-da-riferous
ID: 35030591
I think you will realize that you can configure your ports as access and not have to trunk them as long as you utilize the voice vlan command. be sure to use the AVAYA 242 option and pay attention to your power consumption from the phone as they DO NOT utilize CDP for negotiation and typically use the full class allotment

!
interface FastEthernet0/1
 switchport access vlan 131
 switchport mode access
 switchport nonegotiate
 switchport voice vlan 831
0

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