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Enabling PoE on 48 port switch

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  • 1.  Enabling PoE on 48 port switch

    Posted Dec 15, 2022 03:46 PM
    10.0.0.3 on the left is a 2390F-48G-4SFP switch 
    10.0.0.4 on the right is a 2390F-24G

    When I login into the web GUI for the 48 port switch, it says PoE watts disabled, and and when I look at the actual phone it doesn't have the Yellow PoE label, meaning this is not a PoE switch.  So why does the GUI have the PoE watts?

    Comparing to the 24 port switch, it also says PoE watts, and it shows the watts.  And on the actual switch, there is a Yellow PoE label, meaning this is an actual PoE switch.

    So my question is, first of all, is there a way to convert the 48 port switch to PoE?  



  • 2.  RE: Enabling PoE on 48 port switch

    Posted Dec 15, 2022 03:52 PM
    This is for our VoIP phones so the phones get power from the ports.
    Because if there's no way, we have to use the AC adapter for the phones.
    Is there a way to convert the whole switch (all ports) to PoE?  May be like a PoE injector but for whole switch ports.


  • 3.  RE: Enabling PoE on 48 port switch

    Posted Dec 15, 2022 05:43 PM
    Hello, can you clarify what SKUs (like JL262A, as example) those two switches have?

    If one is effectively a PoE or PoE+ model it should be very easy to see Port's PoE status and configuration directly via CLI (I tend not to use the Web UI at all).





  • 4.  RE: Enabling PoE on 48 port switch

    Posted Dec 15, 2022 05:58 PM
    I would prefer CLI also, but I was just comparing the web UI to make sure.

    48 port switch = Aruba 2930F / JL260A, this is the one I'm trying to enable PoE on the ports, because on the web ui it shows Poe Watts just like the 24 port switch.  So is this a PoE switch then?

    24 port switch = Aruba 2930F / JL261A, this is the one with the yellow PoE label on the actual switch

    I tried interface 10 power-over-ethernet, but that didn't work. See below.


    Core-48(config)# interface 10 power-over-ethernet
    Invalid input: power-over-ethernet
    Core-48(config)#


    https://techhub.hpe.com/eginfolib/Aruba/16.10/5200-6761/index.html#s_Disabling_or_re_enabling_PoE_port_operation_2920.html


  • 5.  RE: Enabling PoE on 48 port switch

    Posted Dec 16, 2022 05:26 AM
    AFAIK the JL260A SKU identifies a non-PoE model: Aruba 2930F 48G 4SFP Switch.

    Simply do not trust the Web UI...trust the CLI. Also, PoE/PoE+ capable ports are marked in the real chassis if I'm not mistaken, a Web UI could potentially show you a wrong chassis.

    What ArubaOS-Switch versions are running on those two Aruba 2930F switches? just to make sure the Web UI has/has not a bug...in the switch representation and exposed ports' features.





  • 6.  RE: Enabling PoE on 48 port switch

    Posted Dec 16, 2022 08:36 AM
    These are my versions on the 48 and 24 port switches.  Looks like I'm one version behind on the 48 port switch, but that shouldn't be the issue with PoE right?

    Aruba 2930F-48G-4SFP Switch (JL260A), WC.16.02.0014, ROM WC.16.01.0003
    Aruba 2930F-24G-PoE+-4SFP Switch (JL261A), WC.16.03.0005, ROM WC.16.01.0003




  • 7.  RE: Enabling PoE on 48 port switch
    Best Answer

    Posted Dec 16, 2022 09:57 AM
    Hi, I strongly suggest you to consider an upgrade from, respectively, WC.16.02.0014 (released 02-11-2016) of WC.16.02 and WC.16.03.0005 (released 14-07-2017) of WC.16.03 to latest WC.16.11.0008 (released 12-11-2022) of the currently supported WC.16.11 software line.

    Such of an upgrade will not magically transform a non-PoE capable Switch into a PoE capable Switch, the JL260A is non-PoE capable and non-PoE will stay but, at least, it will fix bugs and security issues on both switches discovered between 2016/2017 and 2022 (during latest 5/6 Years). Beneficial for sure.

    Please carefully read the Release Notes to understand what an upgrade means and how to proceed (and what to expect).


  • 8.  RE: Enabling PoE on 48 port switch

    Posted Dec 16, 2022 10:16 AM
    Agreed, thanks.


  • 9.  RE: Enabling PoE on 48 port switch

    Posted Dec 19, 2022 08:42 AM
    I did a software on all my 2930F switches to the latest firmware WC.16.11.008, but the 48 port switch is still showing PoE watts on the gui.  Why?
    If this switch is not a PoE switch, why does is show PoE watts?

    This is the original reason why I was kind of mislead in thinking this was a PoE switch.




  • 10.  RE: Enabling PoE on 48 port switch

    Posted Dec 19, 2022 04:00 PM
    One more question besides the one above.

    On the Aruba 2930F-24G-PoE+-4SFP, I know the RJ45 ports are ethernet, what about the SFP?  Is SFP also PoE?


  • 11.  RE: Enabling PoE on 48 port switch

    Posted Dec 19, 2022 06:00 PM
    Are you asking what a SFP interface is?

    For sure I can say you what it isn't (other than suggesting you to look for it).

    It isn't an interface (slot) capable to provide (through any inserted SFP RJ45 Transceiver) power to a connected device.

    So, short answer: No, SFP is not "PoE".





  • 12.  RE: Enabling PoE on 48 port switch

    Posted Dec 19, 2022 06:26 PM
    The point is very simple: it's not a PoE Switch no matter what the buggy Web UI reports you (misleading or not the information carried by that graphical interface).

    I suggest you this: trust the CLI not the Web UI.

    The Web UI, for the good or the bad, is a not error free representation of what a (part of the) system grammar provided by the CLI is able to say about your system.

    Don't trust it or, eventually, just use it with granum-salis.

    Also CLI can be wrong sometimes but that event is seldom seen because such of a bug will impact on switch operation directly and it is worse than a bug on a (not mandatory for opetation) Web UI, not mandatory at least for this particular fully CLI managed Switch series.

    A personal example: I have a VSF of two Aruba 5400R zl2, each one with one Management Module installed on Slot 1 (thus MM1) of each chassis. The Web UI still insist that the VSF Standby member has a MM2 and lacks of a MM1 (and so the chassis graphic is false with respect to reality)...the CLI obviously reports the MMs positioning correctly. Worth to say I used the Web UI probably 3 times in 5 years then I definitely disabled the Web Server (hardening).

    If you think this is a more-than-annoying Web UI bug, feel free to open a ticket on ASP to see if they can fix it or suggest a workaround.





  • 13.  RE: Enabling PoE on 48 port switch

    Posted Dec 20, 2022 06:42 AM
    Edited by parnassus Dec 20, 2022 06:44 AM
    Have you tried to access the Next-gen GUI (the entry should be available on the top right corner or the Web UI you're using). Is the "issue" present also in the Next-gen GUI? just curious.

    Have a look here.




  • 14.  RE: Enabling PoE on 48 port switch

    Posted Dec 20, 2022 08:45 AM
    Thank you for your reply, yes, I am using the CLI for everything, but its nice to confirm with web ui also.  I tried the next-gen UI, but on there a Poe and non-Poe switch shows the same thing on ports page.  No PoE info.

    My point is this.  These switches were bought before I took over IT here, and apparently these are very expensive switches.  You would think for an expensive switch, it will show the right data.  I'm used to Netgear switches which are 1/2 the price of the Aruba switches, and I never had a problem with them.  

    Also, I did open a ticket with Aruba for something unrelated, but I have yet to receive a reply.


  • 15.  RE: Enabling PoE on 48 port switch

    Posted Dec 20, 2022 08:51 AM
    Is there anyone from Aruba here?  I opened a case last week, and I don't have any replies from the person handling this.   

    Case 5369748831


  • 16.  RE: Enabling PoE on 48 port switch

    Posted Dec 20, 2022 09:27 AM
    In that case, call support over the phone and ask for an engineer to talk to; or consider escalating your ticket.

    Check the TAC User Guide.

    One reason that the GUI shows PoE Watts and disabled could be that the switch software is the same for the PoE and non-PoE models. You probably don't want either to have different firmware, or different looks if you have multiple switches.

    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
    ------------------------------



  • 17.  RE: Enabling PoE on 48 port switch

    Posted Dec 20, 2022 09:48 AM
    Yes, all of the Aruba 2930F switches have the same firmware.  PoE+ and non.  Why?  I'm not sure.  Not sure why Aruba decided to do that way.


  • 18.  RE: Enabling PoE on 48 port switch

    Posted Dec 20, 2022 10:43 AM
    I believe things are a little bit more complex than implying that using two different firmware images could have avoided this particular cosmetic issue.

    As example, the Aruba 5400R zl2 switch series has two chassis: 6 and 12 slots. The series uses one Firmware image for both models...but the Web UI is engineered in a way to look at SKU (I suppose) and consequently to plot/render the correct Chassis image into required Web page(s).

    Here I'm just simplifying a pointvof view because I'm not a web developer/coder.

    Would be probably simply a matter of introducing a little bit of "intelligence" on the code used to generate some particular web pages in the UI in order to show exactly what is there, avoiding what there is not.

    My 2 cents.