Re: AVAYA IP telephones Over Cisco Switches

I work in a Cisco network Avaya call center environment. We use

no cdp enable
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk allowed vlans Data , Voice

some times I see the native VLAN set to the data VLAN but above is enough.
We have to throw in DHCP options for phones for first boot up; they pull
boot file with information about data, voice VLANS. Phone resets as a
switch trunking both voice for hand set and possibly Data for a PC jacked
into it.

On Sat, Jan 7, 2012 at 2:39 AM, Karim Jamali <karim.jamali_at_gmail.com> wrote:

> Dear Mahmood,
>
> You should use LLDP-MED as this is the standard. There is an IOS version
> that supports it..Once this is done, the switch should be able to inform
> the phone on the voice vlan to use..
>
> There is one workaround which is to boot the phone and by default it will
> take from the data(untagged scope) and through DHCP server you can enforce
> a VLAN causing the phone to request an address from the voice scope
> (tagged) however the phone will be booting twice.
>
> HTH
>
> Thanks
> On Jan 7, 2012 1:04 PM, "Mahmoud Nossair" <mahmoud.nossair_at_gmail.com>
> wrote:
>
>
> Blogs and organic groups at http://www.ccie.net
>
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Received on Sat Jan 07 2012 - 10:12:09 ART