[c-nsp] Configure port to supply PoE only

Hunter Fuller hf0002 at uah.edu
Thu Jan 14 18:07:50 EST 2016

When I need to have a physical link up but not pass traffic, and I
have a layer 3 image, I do "no switchport" and "no ip address" on the

If there is no layer 3 capability you might try setting "switchport
trunk allowed vlan none" and setting native VLAN to a nonexistent
VLAN, then switching to mode trunk.

Hunter Fuller
Network Engineer
VBRH Annex B-1
+1 256 824 5331

Office of Information Technology
The University of Alabama in Huntsville
Systems and Infrastructure

On Thu, Jan 14, 2016 at 4:56 PM, Ricardo Stella <stella at rider.edu> wrote:
> Hi folks,
> Sorry if this might be a 'stupid' question.  I need to test a wireless mesh
> configuration and the only thing I have available to supply power to the
> access points (PoE+) is a 2960S switch.
> The switch is isolated to the network, but when it seems that when I add
> more than one access point to it, they are 'talking' to each other.  So is
> there a way to configure the ports so that the ports only supply power?
> The moment the second access point is connected and goes up, I start
> getting flapping errors.
> Thanks in advance for your help and apologies if it is indeed a dumb
> question. All I ask is that you minimize your laughs.  :)
> Ricardo.
> --
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