[Asterisk-Users] polycom and cdp

Richard richard at o-matrix.org
Wed Dec 22 20:41:42 MST 2004


> Richard wrote:
> > Hi,
> >
> > Has anyone tried to use cdp to push the voice vlan tag to polycom
phones?
> > The document says that it is supported, but I can't make it work.
> >
> > Thanks,
> > Richard
> 
> Richard,
> 
> 	I can't either.  I've tried using HP Procurve switches and even my
> Catalyst 2950T-24.  Neither work.  I have been setting vlan's manually.
> 
> Note:  My 7960 works with the Catalyst, and I haven't tested it with the
> Procurve.
> 
Hi Kristian,

I have a catalyst 3500xl and can't get it work.

On the switch, I use

int f0/xx
 switch access vlan 100
 switch voice vlan 200

Supposedly it uses tagged vlan 200 for voice and untagged traffic for data.
I sniff the traffic and saw CDP packets. But 7960 can't get the right vlan
configured. Any suggestion?

Thanks,
Richard





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