perfSONAR User Q&A and Other Discussion

[Szymon Trocha <>]

W dniu 16.05.2016 o 10:52, om prakash singh pisze:

Hi ,

After updating perfsonar toolkit ver from 3.4 to 3.5.1, when i test with bwctl
then i am not getting proper bandwidth output . can you help me


bwctl -c  sacr-pt1.es.net

[ 15] local 14.139.5.202 port 44195 connected to 198.129.254.38 port 5445
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[ 15]   0.00-1.00   sec  87.4 KBytes  0.72 Mbits/sec    0   87.4 KBytes
[ 15]   1.00-2.00   sec  0.00 Bytes  0.00 Mbits/sec    1   26.2 KBytes
[ 15]   2.00-3.00   sec  0.00 Bytes  0.00 Mbits/sec    1   26.2 KBytes
[ 15]   3.00-4.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   4.00-5.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   5.00-6.00   sec  0.00 Bytes  0.00 Mbits/sec    1   26.2 KBytes
[ 15]   6.00-7.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   7.00-8.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   8.00-9.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   9.00-10.00  sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[ 15]   0.00-10.00  sec  87.4 KBytes  0.07 Mbits/sec    3             sender
[ 15]   0.00-10.00  sec  0.00 Bytes  0.00 Mbits/sec                  receiver



2nd host 

bwctl -c bost-pt1.es.net


bwctl: Using tool: iperf3

SENDER START
Connecting to host 198.124.238.66, port 5403
[ 15] local 14.139.5.218 port 34035 connected to 198.124.238.66 port 5403
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[ 15]   0.00-1.00   sec  87.4 KBytes  0.72 Mbits/sec    0   87.4 KBytes
[ 15]   1.00-2.00   sec  0.00 Bytes  0.00 Mbits/sec    1   26.2 KBytes
[ 15]   2.00-3.00   sec  0.00 Bytes  0.00 Mbits/sec    1   26.2 KBytes
[ 15]   3.00-4.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   4.00-5.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   5.00-6.00   sec  0.00 Bytes  0.00 Mbits/sec    1   26.2 KBytes
[ 15]   6.00-7.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   7.00-8.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   8.00-9.00   sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
[ 15]   9.00-10.00  sec  0.00 Bytes  0.00 Mbits/sec    0   26.2 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[ 15]   0.00-10.00  sec  87.4 KBytes  0.07 Mbits/sec    3             sender
[ 15]   0.00-10.00  sec  0.00 Bytes  0.00 Mbits/sec                  receiver


but its oppsite its working meand it gives reverse throughput


bwctl: Using tool: iperf3

SENDER START
Connecting to host 14.139.5.202, port 5549
[ 14] local 198.129.254.38 port 60947 connected to 14.139.5.202 port 5549
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[ 14]   0.00-1.00   sec   127 KBytes  1.04 Mbits/sec   24   5.62 KBytes
[ 14]   1.00-2.00   sec  61.9 KBytes  0.51 Mbits/sec    0   15.5 KBytes
[ 14]   2.00-3.00   sec   127 KBytes  1.04 Mbits/sec    0   22.5 KBytes
[ 14]   3.00-4.00   sec   349 KBytes  2.86 Mbits/sec    0   49.2 KBytes
[ 14]   4.00-5.00   sec   512 KBytes  4.19 Mbits/sec    0   83.0 KBytes
[ 14]   5.00-6.00   sec   894 KBytes  7.32 Mbits/sec    0    138 KBytes
[ 14]   6.00-7.00   sec  1.30 MBytes  10.9 Mbits/sec    0    186 KBytes
[ 14]   7.00-8.00   sec   883 KBytes  7.23 Mbits/sec    0    245 KBytes
[ 14]   8.00-9.00   sec  2.01 MBytes  16.9 Mbits/sec    0    297 KBytes
[ 14]   9.00-10.00  sec  1.25 MBytes  10.5 Mbits/sec    0    423 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[ 14]   0.00-10.00  sec  7.45 MBytes  6.25 Mbits/sec   24             sender
[ 14]   0.00-10.00  sec  4.61 MBytes  3.87 Mbits/sec                  receiver



can you help me 

Hi,

What is the MTU setting on your host? I once saw these results when it was 9000 but the rest didn't support it.

Regards,

-- 
Szymon Trocha

Poznań Supercomputing & Netw. Center ::: NETWORK OPERATION CENTER
Tel. +48 618582022 ::: http://noc.man.poznan.pl