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Occasional Contributor II

620 Controller AOS 5.0.2.1 getting latency

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...

 

Guru Elite

Re: 620 Controller AOS 5.0.2.1 getting latency

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.

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Aruba Employee

Re: 620 Controller AOS 5.0.2.1 getting latency

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.

 

Thanks,
Abilash (ACCP, CWSP, CWAP, CWDP)
(Above answer is based on my knowledge and NOT an official statement from Aruba)
[Hit Kudos if my reply helps. ]
Occasional Contributor II

Re: 620 Controller AOS 5.0.2.1 getting latency

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..

Guru Elite

Re: 620 Controller AOS 5.0.2.1 getting latency

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.



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Re: 620 Controller AOS 5.0.2.1 getting latency

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

Jerrod Howard
Sr. Techical Marketing Engineer
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