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535 in power save mode

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  • 1.  535 in power save mode

    Posted Aug 18, 2022 06:08 AM
    We have a few 535s connected with dual ethernet to 2930F/M switches. Some of the APs are in power-save mode and only drawing 11-12 Watts either through a single cable or 6-7 Watts through two cables each.

    The configs are close to defaults but I tried to set PoE to high priority and allocate by class for the ports, but it didn't really change anything.

    How to get these running at full 802.3at power? Turn off LLDP PoE allocation?


  • 2.  RE: 535 in power save mode

    MVP GURU
    Posted Aug 18, 2022 08:45 AM
    What is your exact switch model?

    Please see the 535 Datasheet entry below:



    ------------------------------
    Dustin Burns

    Lead Mobility Engineer @Worldcom Exchange, Inc.

    ACCX 1271| ACMX 509| ACSP | ACDA | MVP Guru 2022
    If my post was useful accept solution and/or give kudos
    ------------------------------



  • 3.  RE: 535 in power save mode

    Posted Aug 18, 2022 09:07 AM
    We have 2930F models JL255A and JL256A and 2930M model JL322A, so they should give out full 802.3at power. We haven't touched IPM settings and don't use the USB ports, but we are providing power to both ethernet ports.

    Perhaps we should configure IPM, or the LLDP allocation isn't negotiating correctly. I found a reddit post about the same problem that hinted that removing the device profile from the switch might help.


  • 4.  RE: 535 in power save mode

    Posted Sep 08, 2022 05:03 AM
    Any hints what might help?


  • 5.  RE: 535 in power save mode
    Best Answer

    EMPLOYEE
    Posted Sep 08, 2022 05:38 AM
    I suggest to enable IPM

    ------------------------------
    Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba.
    ------------------------------



  • 6.  RE: 535 in power save mode

    Posted 7 days ago

    I am having the same issue, AP-535s working ONLY in Staging Mode (where radios are disabled). I have tried enabling IPM but no luck. 

    IPM settings

    ipm
     enable
     ipm-power-reduction-step-prio ipm-step disable_pse1 priority 1
     ipm-power-reduction-step-prio ipm-step disable_pse2 priority 2
     ipm-power-reduction-step-prio ipm-step disable_usb priority 3
     ipm-power-reduction-step-prio ipm-step disable_alt_eth priority 4
    

    And below are the AP stats

    # sh ap power-mgmt-statistics
    
    Attr                Value
    ----                -----
    LLDP Granted Power  Eth 0: 0.0 Eth 1: 0.0
    LLDP Request Power  Eth 0: 25.5 Eth 1: 25.5
    Power Supply        POE-AF
    USB Status          USB Knob: Auto, USB Status: Disabled
    PSE Status          N.A.
    ETH Status          Eth 0:Enabled. Eth 1:Disabled.
    Radio 0 Chain       1*1
    Radio 0 Enable      Disabled
    Radio 0 Power       1dBm
    Radio 1 Chain       1*1
    Radio 1 Enable      Disabled
    Radio 1 Power       1dBm
    Radio 2 Chain       N.A.
    Radio 2 Enable      N.A.
    Radio 2 Power       N.A.
    CPU Throttle        100%
    Power Consumption   7.0W
    IPM Enable          Enabled
    ITM Status          Not Supported
    #
    

    I have no POE restrictions on the switch side but the AP shows POE-AF. 

    Any suggestions will be appreciated. 




  • 7.  RE: 535 in power save mode

    EMPLOYEE
    Posted 7 days ago

    Hi Ali,

    Did you enable LLDP on the switch? 




  • 8.  RE: 535 in power save mode

    EMPLOYEE
    Posted 7 days ago

    The clue to the lack of LLDP on the switch side is the lack of LLDP granted power.

    Attr                Value
    ----                -----
    LLDP Granted Power  Eth 0: 0.0 Eth 1: 0.0
    LLDP Request Power  Eth 0: 25.5 Eth 1: 25.5


    ------------------------------
    Carson Hulcher, ACEX#110
    ------------------------------



  • 9.  RE: 535 in power save mode

    Posted Sep 09, 2022 09:08 AM
    Hi, you can check 2 things:
    Is lldp enable on the switch?
    Is the lacp active configured on the switch where the AP connects the 2 cables?

    Hope this helps


  • 10.  RE: 535 in power save mode

    Posted Sep 09, 2022 10:28 AM
    Hi,

    LLDP is enabled with defaults, no custom config. LACP is done with trunk 1/14,2/14 trk2 lacp, show lacp shows LACP mode as active. I guess since mode is active it's the same as done by int 1/14,2/14 lacp active?


  • 11.  RE: 535 in power save mode

    Posted Sep 10, 2022 11:26 AM
    on the switch input this cli.
    power-over-ethernet pre-std-detect



  • 12.  RE: 535 in power save mode

    EMPLOYEE
    Posted Sep 10, 2022 08:14 PM
    AP535s always use standard PoE, so i don't thin this command will help.
    you can use this command to provide at power, where"3" is the port number where the AP is connected.
    "no lldp config 3 dot3TlvEnable poeplus_config"

    ------------------------------
    Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba.
    ------------------------------



  • 13.  RE: 535 in power save mode

    Posted Sep 14, 2022 08:09 AM
    After enabling IPM on the APs and disabling USB port from the web interface, I set poe-lldp-detect enabled on the switch interfaces. This seems to have done the trick. The LEDs are green now and no lldp config 3 dot3TlvEnable poeplus_config didn't seem to make difference on top of that so I took it off.

    The APs are drawing about 10 W of power, but I guess that's all they need since they are operating on one band only and USB is off.



  • 14.  RE: 535 in power save mode

    EMPLOYEE
    Posted Sep 14, 2022 08:33 PM
    wen yo enable IPM, you don't need no lldp config 3 dot3TlvEnable poeplus_config

    ------------------------------
    Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba.
    ------------------------------



  • 15.  RE: 535 in power save mode

    Posted 6 days ago

    AP-535 would happily run with no restrictions if it is powered by two 802.3at or single 802.3bt power. With only one at power, you really need to use IPM.

    Best, Gorazd



    ------------------------------
    Gorazd Kikelj
    MVP Guru 2024
    ------------------------------