[Karlnet] RE: New repeater WIPOP has bad ping/jitter.

[Blair Drew Davis <theory@datawise.net>]

Norm,

I am currently having the same trouble on one of my links.  All of our 
software is ver 4.44-02.  Most of our hardware is Lucent AP-1000 or 
AP-IIE with a single Flash ROM unit in the system as well.  RF tests 
shows good link snr with no drops until load is applied.

Ping fill and other tests show thru put in excess of 2Mbits, but with 
any load over 100Kbits, ping times go from a steady 10-20ms to 700+ms 
with lots of jitter.  Currently, we have replaced our radio cards, 
pigtails, flashed hardware, amp power injectors and amp power supplies.  
Our next step will be to replace the amp, but that must wait for better 
weather.

If that doesn't work, my next step will be to try using 2 different 
boxes for this link instead of 2 radio cards in one box.  You might 
consider trying this yourself.

One odd thing we have seen from time to time is a pattern in the ping 
times under load.  Something like this :

200ms
750ms
200ms
790ms
190ms
710ms

And so on.  Are you seeing anything like this?

--
Blair Davis
West Michigan WISP
www.wmwisp.net
(269) 686-8648
AOL Instant Message Screen Name       theory240




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