Wireless Access

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Frequent Contributor I
Posts: 126
Registered: ‎07-06-2010

Retried Frames

What is the primary cause of retried frames?  We see this more often with lower quality wifi cards in clients, the dropped frames are all well less than 1%, but in some situations we see a higher retry rate.  Now all the machines in question have 802.11g cards.

 

We see a higher retry from the client then to the client.  We are only seeing this on the 2.4 band and not 5.

 

Is this just a combination of contention/poor wifi adapters?  It does not appear to cause major issues with the users in question.

 

Thanks,

Dan

Guru Elite
Posts: 21,293
Registered: ‎03-29-2007

Re: Retried Frames

Since that wifi is a shared mechanism, there is always going to be retries.  You normally do not like to see retries susained over 20%.  If you have a great deal of congestion in a high density evironment, this could go even higher.

 



Colin Joseph
Aruba Customer Engineering

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Frequent Contributor I
Posts: 126
Registered: ‎07-06-2010

Re: Retried Frames

Its never sustained... and mostly happens when you have 10-15 clients turn on their machines at the same time (class changes).

 

I was just curious if it should be something to worry about, or its just nature of the beast - that is wifi...

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