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Port LED's blinking in unison for all interafces within same Vlan

  • 1.  Port LED's blinking in unison for all interafces within same Vlan

    Posted 05-04-2021 12:16 PM
    New 1930 switch running v1.0.4, replacing Catalyst 3750. Duplicated all vlan assignments. Moved cables 1-for-1 (ie. from Cat fas1/0/2 to 1930 e2). No loops. At first all port LED's flutter with initial activity when connected (dhcp, arp). After a few seconds the port LED's begins a cyclical half-second on, half-second off pattern. All ports in the same vlan do this. I cannot find an LED pattern defining this blink pattern. The LED's don't flutter as traffic changes. It's like a the LED's are on an on/off timer. Traffic seems unaffected.

    Here's what I see. Ports 4 & 8 are in different VLANs from the rest.


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    JASON YOUNG
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  • 2.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Employee
    Posted 05-13-2021 05:56 PM
    Hi Folks,

    We agree here in the lab, the LAN activity LED pattern isn't correct. We are debugging the issue with chip MFG and ODM. Seems there could be synchronization issue between two HW components that control LED behavior. There is an open case with Aruba Support Engineering. We will provide updates to the submitter through the support team and will get back on this thread once the problem is understood.

    Thank you for reporting your observations and submitting a case with our support team.

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    Ben E Seligson
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  • 3.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 05-13-2021 10:28 PM
    Ben, thank you for acknowledging the issue. Do you think it will be resolvable with firmware?

    Jason





  • 4.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 05-17-2021 09:14 AM
    Hi Ben,

    Just to let you know that I've got the same issue.

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    Walther Lalk
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  • 5.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 05-26-2021 07:31 PM
    Yes every 1930 does this that I have installed. I will be calling support because it's horrible. Switch works fine, but the blink pattern is beyond annoying.

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    Jason Stevens
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  • 6.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Employee
    Posted 05-28-2021 03:19 PM
    Hi, thank you for your patience. Investigations concluded this week. There was a misinterpretation of the spec across the various labs that has been corrected. We'll provide a patch in the next maintenance release. The release date is TBD but not too far off.

    Apologies for the inconvenience.

    Thanks,
    Ben

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    Ben E Seligson
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  • 7.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 06-07-2021 10:57 AM
    Hi Ben, do you have a date for the new firmware? I'm watching this page but nothing new posted - assuming this is the proper page to download from.
    Thanks

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    JASON YOUNG
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  • 8.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 06-16-2021 08:57 PM
    Th is is happening to many of my switches

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    Jeff Cohen
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  • 9.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 06-18-2021 09:49 AM
    Same here.... same as the video posted from Jason..... weird...

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    Jean-François Ménard
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  • 10.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 06-21-2021 01:07 PM
    Welp, firmware version 1.0.5.0_139 doesn't fix this... it's not mentioned in the release notes as a fix either so I guess I'm not surprised. Was really hoping for some traction on this... 
    Aruba Support Group can't seem to find an answer worth sending either. Simple request - what's the ETA on the fix Ben announced? It's been two weeks now yet all I get from them is "...still following up with our Engineering team regarding this request". Why even send that?? 





  • 11.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 06-23-2021 11:19 AM
    yep, we applied the firmware to a test switch to see if it was just an un-documented change but unfortunately not!

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    Adam Postgate
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  • 12.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 06-30-2021 09:25 AM
    My experience with this undocumented flashing has been when there is some sort of block.  It was to the point of it blocking all VLANs, not just the VLAN the affected port(s) was in.  After much trial and error with STP the problem seems to be remedied.  You might try changing from STP to RSTP, using BPDU Guard, and disabling STP on any ports that do not connect to other network infrastructure.  Also, highly suggest against using Aruba's built-in Loop Protection!
    Hope this helps and they release whatever the fix for the odd flashing soon.

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    John Whitmarsh
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  • 13.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 07-30-2021 08:28 AM
    Unfortunately my switch still flashes like a Christmas tree :(

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    Walther Lalk
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  • 14.  RE: Port LED's blinking in unison for all interafces within same Vlan

    Posted 07-31-2021 09:17 AM
    I fixed this issue loooong ago. I installed the switch in a 6U cabinet with an opaque door :-D

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    Valentin Voica
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