Aruba model 320 ap's cannot draw enough POE from SSA

  • 0
  • 1
  • Question
  • Updated 2 years ago
  • Answered
Aruba AP model 320 goes into low power setting when connected to POE on SSA.  I set the inlinepower port capability to 8023at for 34w but I see no difference in the usage number. This is happening with several aps. on different ports.

SEC_Core_SSA(rw)->show port inlinepower ge.1.15 

Port     Type          Oper             Admin  Priority Class Power Power PD   
 Power  Power
         (truncated)   Status           Status                Limit Usage Type 
 Capab- Capab
                                                              (mW)  (mW)       
 ility  Select
-------- ------------- ---------------- ------ -------- ----- ----- ----- ------
 ------ ------
ge.1.15                delivering power auto   low      4     34000 6000  8023 
 8023at 8023at

SSA  Fw: 07.71.02.0005

Is there another setting I could use to force the port to more power?

thnks in advance
walt
Photo of Walt Witkowski

Walt Witkowski

  • 436 Points 250 badge 2x thumb

Posted 2 years ago

  • 0
  • 1
Photo of Roger Green

Roger Green

  • 200 Points 100 badge 2x thumb
how many power supplies in the SSA ?
Photo of JAMES WIEDEL

JAMES WIEDEL

  • 780 Points 500 badge 2x thumb
Walt,
There are 2 commands you need to do to give your access point the ability to use "at" power.
Looks like you did the first but probably didn't realize you needed the second:

set port inline ge.1.15 type "power hungry AP" powerlimit 34000 capability 8023at
set lldp port tx-tlv poe ge.1.15

Power is negotiated via lldp at a low level and by default is not enabled on S-series
as well as K-series by default.   I have been told that it is OK to enable it on all ports.

"power hungry AP" is just a descriptive string, like the ifAlias.     A few (not many) phones require the extra power as well as some (not all) PTZ cameras (Pan Tilt Zoom cameras).

Hope that helps!
    James
Photo of Mike D

Mike D, Alum

  • 3,852 Points 3k badge 2x thumb
Hi Walt,

 

Each of the following are necessary:

*Upgrade the S-series to 8.42.04.x – released August 2016

As of 8.41 f/w the mdi tlv's and most 802.11ac grade AP interop functional.  8.42 code has some tuning to clear all known interop problems.

*Set lldp port tx-tlv poe ge.1.15 Allows L1 criteria communication

*Set lldp port tx-tlv med-poe ge.1.15 Allows power value negotiation - the most recent fixes (*8.42.etc) have been in this area.

In line with the suggestions added up to this point - but additional code level and command required. 

That should work.

Regards,

Mike