Wireless Access

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Access network design for branch, remote, outdoor and campus locations with Aruba access points, and mobility controllers.
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620 Controller AOS 5.0.2.1 getting latency

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  • 1.  620 Controller AOS 5.0.2.1 getting latency

    Posted Oct 05, 2015 08:14 AM

    Hi,

     

    We have Aruba 620 controller. AOS 5.0.2.1 and 2 AP 93

    We are getting high latency through wireless network.

    AP are installed in different places.

    Please suggest troubleshooting steps.

     

    Thanks in advance...

     



  • 2.  RE: 620 Controller AOS 5.0.2.1 getting latency
    Best Answer

    Posted Oct 05, 2015 08:16 AM

    the AP93 is a single band AP, so you are very limited in what you can do.

     

    - Enable Drop Broadcast and multicast on all of your Virtual APs

    - Broadcast as few SSIDs as possible.

     



  • 3.  RE: 620 Controller AOS 5.0.2.1 getting latency

    Posted Oct 05, 2015 10:22 AM

    Below are some high level initial troubleshooting steps:

     

    1) Segregate if the problem is seen in wired network itself or only in WLAN.

    2) Check if the issue is band specific - 2.4 or 5 GHz

    3) Have a separate VLAN for WLAN to reduce broadcast/ multicast pollute the RF.

    4) Ensure you dont have non wifi RF interference.

    5) You are in a really old code. Go through the release notes and atleast move to the latest 5.0.4.x code.

     



  • 4.  RE: 620 Controller AOS 5.0.2.1 getting latency

    Posted Oct 06, 2015 02:09 AM

    Thanks for your reply.

     

    I have enabled drop broadcast & multicast but no luck.

     

    I test ping from controller to gateway ip & result are fine. But if i ping from controller to client IP i am getting latency as well packet drop.

    There is no interference observed in the air.

     

    Thank you..



  • 5.  RE: 620 Controller AOS 5.0.2.1 getting latency

    Posted Oct 06, 2015 07:42 AM

    Did you try upgrading the ArubaOS code?  It could improve your issue.

     

    Again, the AP93 operates a single band, that means there is alot of interference and contention that you will have to accept, so there is a limit to the performance when using a device that operates only at 2.4ghz.



  • 6.  RE: 620 Controller AOS 5.0.2.1 getting latency

    Posted Oct 06, 2015 09:10 AM

    Also dpending on your client device, make sure that any PSP (power-save) is disabled as it will artificially introduce a lot of latencies and PL in the ping response