#13 UDP traffic shaping & bursts

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nobody
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5
2010-11-03
2010-11-03
Anssi Jarvinen
No

Hi. We tested udp with client (1G/s) < sw > server (100M). We always noticed that client to server test data is heavily dropped. Reason for this is that server's sw (100M ) output Q overflows. I wire sharked the traffic and noticed that at traffic is shaped by sending bursts every 10ms. Now question is that is it possible to change this value fex to 1ms or some other way to manipulate bursts? Test is OK when both sides are 100M

bin/iperf.exe -c 10.0.0.1 -u -P 1 -i 1 -p 5001 -w 41M -l 1k -f k -b 50M -t 60 -d -r -L 5001 -T 1

[3916] 0.0-45.0 sec 276075 KBytes 50240 Kbits/sec
[3916] Server Report:
[3916] 0.0-45.0 sec 91510 KBytes 16653 Kbits/sec 0.799 ms 184565/276075 (67%)

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 189928
Queueing strategy: fifo
Output queue: 0/40 (size/max)

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