[cisco-voip] 9971 Load sip9971.9-3-1-33 and voice vlan

[Erick B.]

Hmm. Interesting.

Have you tried this with a 7900 series phone for comparison?
What model power injector?

Try doing a packet capture on both sides of injector and see if the
VLAN headers are being stripped of injector is rewriting packet and
not just adding PoE.

I don't have any PoE injectors handy else would try on 9971s we use.
We use ours on Wifi w/power cubes if PoE not available.


On Thu, Sep 27, 2012 at 4:56 PM, Jason Aarons (AM)
<jason.aarons at dimensiondata.com> wrote:
> So, we discovered that if you power up a 9971 with external power (injector)
> and connect it to the switching, it doesn’t honor the Cisco voice VLAN, and
> jumps on the “access vlan” of the port instead.  Meaning, it does a DHCP and
> gets our standard user data network of 10.20.164.0/23 instead of the
> endpoint segment of 10.20.170.0/24
>
>
> The switch still identifies the phone as a Cisco IP Phone:
>
>
> Sep 27 14:54:36 MDT: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone
> detected on port Gi1/0/9, port's configured trust state is now operational.
>
>
> However, if you let it draw PoE, it boots normally and places the phone on
> the voice VLAN and the PC on the data VLAN.
>
>
>
> Is there something misconfigured in the switching?  Why would the phone not
> jump on the voice VLAN regardless of power source?
>
>
>
> Phone load is sip9971.9-3-1-33