IPERF 5Mbps  background



[ID] Interval       Transfer     Bandwidth       Jitter   Lost/Total Datagrams
[  3] 1060.0-1061.0 sec   637 KBytes   5.2 Mbits/sec  0.413 ms    2/  446 (0.45%)
[  3] 1061.0-1062.0 sec   640 KBytes   5.3 Mbits/sec  0.302 ms    0/  446 (0%)
[  3] 1062.0-1063.0 sec   639 KBytes   5.3 Mbits/sec  0.863 ms    0/  445 (0%)
[  3] 1063.0-1064.0 sec   640 KBytes   5.2 Mbits/sec  0.209 ms    0/  446 (0%)
[  3] 1064.0-1065.1 sec   629 KBytes   4.8 Mbits/sec  0.370 ms    8/  446 (1.8%)
[  3] 1065.1-1066.0 sec   640 KBytes   5.7 Mbits/sec  0.179 ms    0/  446 (0%)
[  3] 1066.0-1067.0 sec   640 KBytes   5.2 Mbits/sec  0.193 ms    0/  446 (0%)
[  3] 1067.0-1068.0 sec   640 KBytes   5.2 Mbits/sec  0.557 ms    0/  446 (0%)
[  3] 1068.0-1069.0 sec   639 KBytes   5.3 Mbits/sec  0.212 ms    0/  445 (0%)
[  3] 1069.0-1070.0 sec   640 KBytes   5.2 Mbits/sec  0.297 ms    0/  446 (0%)
[  3] 1070.0-1071.0 sec   640 KBytes   5.2 Mbits/sec  0.307 ms    0/  446 (0%)
[  3] 1071.0-1072.0 sec   640 KBytes   5.3 Mbits/sec  0.116 ms    0/  446 (0%)
[  3] 1072.0-1073.0 sec   640 KBytes   5.2 Mbits/sec  0.359 ms    0/  446 (0%)








ppepc42] ~/bin > sudo pcharmod -t 1 -g .001 ******.ph.ed.ac.uk
pchar to ******.ph.ed.ac.uk (129.215.73.55) using UDP/IPv4
Using raw socket input
Packet size increments from 32 to 1500 by 32
46 test(s) per repetition
32 repetition(s) per hop
 0: 194.36.1.242 (ppepc42.ph.gla.ac.uk)
    Partial loss:      0 / 1472 (0%)
    Partial char:      rtt = 0.825327 ms, (b = 0.000234 ms/B), r2 = 0.976821
                       stddev rtt = 0.004382, stddev b = 0.000005
    Partial queueing:  avg = 0.000169 ms (722 bytes)
    Hop char:          rtt = 0.825327 ms, bw =      34.26 +/-   0.80 Mbps
    Hop queueing:      avg = 0.000169 ms (722 bytes)
 1: 194.36.1.1 (194.36.1.1)
    Partial loss:      0 / 1472 (0%)
    Partial char:      rtt = 0.833414 ms, (b = 0.000259 ms/B), r2 = 0.969907
                       stddev rtt = 0.005563, stddev b = 0.000007
    Partial queueing:  avg = 0.000452 ms (11694 bytes)
    Hop char:          rtt = 0.008087 ms, bw =     310.38 +/- 105.54 Mbps
    Hop queueing:      avg = 0.000283 ms (10972 bytes)
 2: 130.209.2.1 (130.209.2.1)
    Partial loss:      0 / 1472 (0%)
    Partial char:      rtt = 0.453266 ms, (b = 0.000292 ms/B), r2 = 0.997755
                       stddev rtt = 0.001690, stddev b = 0.000002
    Partial queueing:  avg = 0.000217 ms (11694 bytes)
    Hop char:          rtt = --.--- ms, bw =     241.20 +/-  52.33 Mbps
    Hop queueing:      avg = -0.000234 ms (0 bytes)
 3: 130.209.2.22 (130.209.2.22)
    Partial loss:      0 / 1472 (0%)
    Partial char:      rtt = 2.986000 ms, (b = 0.001278 ms/B), r2 = 0.986187
                       stddev rtt = 0.018424, stddev b = 0.000023
    Partial queueing:  avg = 0.002828 ms (14342 bytes)
    Hop char:          rtt = 2.532733 ms, bw =       8.12 +/-   0.19 Mbps
    Hop queueing:      avg = 0.002611 ms (2648 bytes)
 4: 193.63.106.195 (scot-x.eastman.net.uk)
    Partial loss:      0 / 1472 (0%)
    Partial char:      rtt = 2.737802 ms, (b = 0.001452 ms/B), r2 = 0.993587
                       stddev rtt = 0.014206, stddev b = 0.000018
    Partial queueing:  avg = 0.001603 ms (14342 bytes)
    Hop char:          rtt = --.--- ms, bw =      46.08 +/-   7.64 Mbps
    Hop queueing:      avg = -0.001225 ms (0 bytes)
 5: 129.215.0.26 (a0-0-2.kb3.net.ed.ac.uk)
    Partial loss:      0 / 1472 (0%)
    Partial char:      rtt = 3.025893 ms, (b = 0.001546 ms/B), r2 = 0.987627
                       stddev rtt = 0.021077, stddev b = 0.000026
    Partial queueing:  avg = 0.001626 ms (14584 bytes)
    Hop char:          rtt = 0.288092 ms, bw =      84.82 +/-  28.29 Mbps
    Hop queueing:      avg = 0.000023 ms (242 bytes)



[ppepc42] ~/bin > pipechar *******.ph.ed.ac.uk
0: localhost [7 hops]
From localhost:
|	90.909 Mbps 100BT (104.0989 Mbps)

1:                                 (194.36.1.1  )
|
|	156.885 Mbps        	 <3.5354% BW used>
2:                                 (130.209.2.1 )
|
|	156.402 Mbps        	 <0.1307% BW used>
3:                                 (130.209.2.22)
|
|	10.457 Mbps        	 <1.6277% BW used>
4: scot-x.eastman.net.uk           (193.63.106.195)
|
|	10.126 Mbps        	 <1.6277% BW used>
5: a0-0-2.kb3.net.ed.ac.uk         (129.215.0.26)
|
|	10.095 Mbps        	 <4.1974% BW used>
6: vlan354.kb5-msfc.net.ed.ac.uk   (129.215.0.218)
|	8.066 Mbps 10BT (10.3385 Mbps)

7: ********.ph.ed.ac.uk             (129.215.73.55)




CONCLUDE:  PCHAR and PIPECHAR measurements are uninfluenced by a 5 Mbps background
           from GLA -> ED.