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Aruba Switch - Broadcast suppression on trunked links

This thread has been viewed 5 times

  • 1.  Aruba Switch - Broadcast suppression on trunked links

    Posted May 11, 2017 04:45 AM

    Hi everyone,

     

    When i'm using the older Procuve firmwares (15.17, ...) i'm able to set a broadcast limit on trunked uplinks. When I upgrade to the latest firmware (16.0, ...), I'm not able to configure this. Is the command changed? How do I setup broadcast-suppression on my uplinks?

     

    Kind regards,

    Thomas Willems



  • 2.  RE: Aruba Switch - Broadcast suppression on trunked links

    EMPLOYEE
    Posted May 22, 2017 07:25 AM

    Hi Thomas, I thought this always has been a command hat is added on interface context level. Maybe it was able to configure at the trunk level and this pushed it to interface level. But indeed at the moment this is not possible. I do know that there has been a change from 15.17 to 15.18 with GMB on trunk level maybe this had some impact. But the command is still there but on interface level. You have option for broadcast output configuration with broadcast-limit or rate-limit bcast in for incoming broadcast control. If you want to configure all interfaces belon to trunk in one command you can use range commands like following:

    interface 10-12 broadcast-limit 11

    interface 20,23 broadcast-limit 11

     

    Hope you find this useful!

     

    Regards, Dobias



  • 3.  RE: Aruba Switch - Broadcast suppression on trunked links

    Posted May 22, 2017 08:29 AM

    Hi Dobias,

     

    I'm running firmware version 16.03.

    I'm not able to execute the command you provided. Error message: "Could not perform operation on trunk ports".

     

    Kind regards,

    Thomas Willems



  • 4.  RE: Aruba Switch - Broadcast suppression on trunked links

    EMPLOYEE
    Posted May 22, 2017 09:23 AM

    Hi Thomas,

     

    This is correct. You need to execute the command on the member interfaces of the trunk. For e.g. let's say you have Trk1 with consists of interface 10 and 11. Than you can add this command with for e.g. interface 10-11 broadcast-limit command. Hope this helps!



  • 5.  RE: Aruba Switch - Broadcast suppression on trunked links

    Posted May 23, 2017 03:09 AM

    Hi,

     

    Nope, I get the same error message as above.

     

    Kind regards,



  • 6.  RE: Aruba Switch - Broadcast suppression on trunked links

    EMPLOYEE
    Posted May 23, 2017 03:35 AM

    What switch do you have?



  • 7.  RE: Aruba Switch - Broadcast suppression on trunked links

    Posted May 23, 2017 04:36 AM

    It is on every Aruba switch i'm using.



  • 8.  RE: Aruba Switch - Broadcast suppression on trunked links

    EMPLOYEE
    Posted May 23, 2017 06:10 AM

    Can we use one Trunk as an example? Would it be possible to provide me configuration line of one trunk? 



  • 9.  RE: Aruba Switch - Broadcast suppression on trunked links

    Posted May 23, 2017 07:13 AM

    Off course,

     

    trunk 23-24 trk1 trunk

    interface 23

    name "SW-Core"

    interface 24

    name "SW-Core"



  • 10.  RE: Aruba Switch - Broadcast suppression on trunked links
    Best Answer

    EMPLOYEE
    Posted May 23, 2017 08:52 AM

    Super!

     

    Can you now maybe try the following?

     

    interface 23-24 broadcast-limit 11 <#percentage you need>

     

    -or- at least try

     

    interface 23

      broadcast-limit 11 <#percentage you need>

     

     



  • 11.  RE: Aruba Switch - Broadcast suppression on trunked links

    Posted May 23, 2017 10:08 AM

    That indeed did the trick! Thank you very much!

    What do you recommend for percentage?

     

    Kind regards,

    Thomas



  • 12.  RE: Aruba Switch - Broadcast suppression on trunked links
    Best Answer

    EMPLOYEE
    Posted May 23, 2017 11:06 AM

    This is always hard to anwser since there are a lot of different factors that can be depended on this. More or less a rule of thumb can be more than 20% is excessive in a network segement.