[cisco-voip] 802.3at and the 9971 / VXC 2112

[Nick Matthews]

I believe the 802.3at power is negotiated via CDP.  Not sure if this
is possible through LLDP or not.

-nick

On Tue, Jan 17, 2012 at 2:49 PM, Mike King <me at mpking.com> wrote:
> We have a 9971 phone with the VXC 2112 backpack, and we've connected it to
> one of our Juniper switches that provide 802.3at power.
>
> However the backpack (or the camera) does not appear to work with it. (Works
> fine with the power cube)
>
> Is there anything we have to do to enable PoE Plus (802.3at)?  I know the
> switch is providing it. (Its registering it as a class 4 device, but the
> phone is only drawing 7.4W, out of a Max of 30W)
>
> Mike
>
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