From: Ryan Morris (ryan@egate.net)
Date: Sat Jul 14 2007 - 14:03:54 ART
My experience is no. Even though what it's doing is creating an 802.1q
trunk with 2 vlans on it, you don't need to expressly set it up for
trunking. The voice vlan command + CDP on switch and phone take care of
it for you.
Old 3500XL switches that don't support the voice vlan feature can be made
to work by expressly configuring trunking.
Interestingly, Avaya phones support 802.1q but not CDP, but can still be
made to work. The voice vlan command can be used with these non-CDP
compliant
phones, because the voice vlan they should operate in is assigned via
DHCP. Then they configure their port as a trunk and put the voice traffic
in the voice vlan.
Regards,
Ryan
On Sat, 14 Jul 2007, Djerk Geurts wrote:
> When configuring a voice vlan, does the interface need trunking enabled to
> support the voice vlan feature?
>
> If so then one should check whether the interface can negotiate it or not,
> if not manually enabling trunking is required. Point being I'm not sure it
> would be required as I assumed the access vlan would be the native vlan (so
> to speak).
>
> Any input welcome...
>
> --
> Djerk
> www.djerk.nl
>
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