perfSONAR User Q&A and Other Discussion

[Lixin Liu <>]

Hi,

When viewing traceroute test results, in many cases, we do not
see all hops displayed. Here is an example:

http://ps-dashboard.computecanada.ca/toolkit/gui/psTracerouteViewer/index.cgi?&mahost=http://lat-ulaval.calculquebec.ca/esmond/perfsonar/archive&stime=yesterday&etime=now&epselect=/esmond/perfsonar/archive/3db43e14be6e4e3eaf6cb9e4b4a81432/packet-trace/base

It shows only hop 10-13:

Hop     Router                                  IP              Delay         
  MTU
10      requestTimedOut                 requestTimedOut11 
requestTimedOut                 requestTimedOut12 
requestTimedOut                 requestTimedOut13 
lat-ulaval.calculquebec.ca      132.219.137.25  70.745ms        9000

From the command line, I have:

$ traceroute -F lat-ulaval.calculquebec.ca 9000
traceroute to lat-ulaval.calculquebec.ca (132.219.137.25), 30 hops max, 9000 
byte packets
 1  206.12.24.1 (206.12.24.1)  0.973 ms  1.460 ms  1.940 ms
 2  134.87.2.67 (134.87.2.67)  1.529 ms  2.340 ms  3.185 ms
 3  205.189.32.172 (205.189.32.172)  1.427 ms  1.844 ms  2.326 ms
 4  clgr2rtr1.canarie.ca (205.189.32.175)  12.877 ms  13.639 ms  14.472 ms
 5  sask1rtr1.canarie.ca (205.189.32.183)  22.179 ms  22.944 ms  23.785 ms
 6  wnpg1rtr1.canarie.ca (205.189.32.179)  30.336 ms  29.605 ms  29.495 ms
 7  toro1rtr1.canarie.ca (205.189.32.181)  60.176 ms  61.130 ms  62.110 ms
 8  205.189.32.193 (205.189.32.193)  66.852 ms  67.603 ms  68.589 ms
 9  205.189.32.249 (205.189.32.249)  66.553 ms  66.549 ms  66.633 ms
10  * * *
11  * * *
12  * * *
13  lat-ulaval.calculquebec.ca (132.219.137.25)  70.799 ms  70.761 ms 
70.734 ms

If the link doesn't work, you can view the results using
        
http://lat-ulaval.calculquebec.ca/toolkit/gui/psTracerouteViewer/index.cgi
and select lat-sfu.westgrid.ca to lat-ulaval.calculquebec.ca

Is there anything I should do to fix this?

Thanks,

Lixin.