[MLB-WIRELESS] [tech] erratic ping times...

[Darren Fulton]

Maybe the link is dropping some frames. The MAC layer will retransmit
transparently but any queued IP packets will be delayed. I'm not sure how
many frames can be dropped before the link will lower the speed but it's
possible to connect at 11Mbps and the cards will tolerate some corrupted
frames and still stay at that speed.

Darren
----- Original Message -----
From: "Andy Freeman" <andy at kawasaki.kz>
To: <melbwireless at wireless.org.au>
Sent: Thursday, March 21, 2002 12:12 AM
Subject: [MLB-WIRELESS] [tech] erratic ping times...



I mentioned this to someone while burning my fingers on the BBQ at the
last meeting. (sorry, I'm terrible with names.  (Ryan's idea of name
tags is a good one))


I have a link that has "strange" erratic ping times.

Below are real figures for a 32 byte packet
142,60,105,23,79,2,2,2,2,135,51,92,79,13,60,2,23,2,132,50,31,79,4,58,2

If I up the packet to 5000 bytes the times are proportionally the
same...
27,18,18,19,18,154,70,116,35,91,19,18,18,18,87,69,107,90,231,218,194,176


The link is idle (apart from my ping traffic) any clues as to why?





Cheers,
Andy.



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