Test conditions
Tester: 80-239-142-217.customer.teliacarrier.com (80.239.142.217) [?]
Target: 121-74-45-46.telstraclear.net (121.74.45.46) [?]
Logfile base name: 121-74-45-46.telstraclear.net:2012-02-20-22:16:14 [?]
This report is based on a 10 Mb/s target application data rate [?]
Warning: The section RTT is greater than the requested target RTT (359 > 20) [?]
This report is based on a 360 ms Round-Trip-Time (RTT) to the target application [?]
Original target RTT was: 20 ms. [?]
The Round Trip Time for this path section is 359.000000 ms.
The Maximum Segment Size for this path section is 1460 Bytes. [?]
The Maximum Segment Size for this path section is 1460 Bytes. [?]
Target host TCP configuration test: Fail! [?]
Warning: TCP connection is not using RFC1323 timestamps. [?]
Critical Failure: Received window scale is 2, it should be 4. [?]
Diagnosis: The target (client) is not properly configured. [?]
>
See TCP tuning instructions at
http://www.psc.edu/networking/projects/tcptune/ [?]
Path measurements [?]
The path to the tester is too long for accurate measurements.
>
Test a shorter path section or reduce the target data rate and/or RTT. [?]
Data rate test: Fail! [?]
The maximum data rate was 1.319822 Mb/s. [?]
This is below the target rate (10.000000 Mb/s). [?]
This test did not complete due to other problems with the path, target or tester.
>
Correct other problems first, and then rerun this test. [?]
Loss rate test: Pass! [?]
Pass: zero losses in 4766 packets, loss rate less than 0.020982%. [?]
FYI: To get 10 Mb/s with a 1460 byte MSS on a 360 ms path the total
end-to-end loss budget is 0.167224% (598 packets between losses). [?]
Suggestions for alternate tests
FYI: This path may pass with a less strenuous application: [?]
Try rate=1 Mb/s, rtt=427 ms
Or if you can raise the MTU: [?]
Try rate=1 Mb/s, rtt=2636 ms, mtu=9000 bytes
Network buffering test: Warning! [?]
This test did not complete due to other problems with the path, target or tester.
>
Correct other problems first, and then rerun this test. [?]
Estimated queue size is at least: Pkts: 0 Bytes: 0
This is probably an underestimate of the actual queue size. [?]
This is probably an underestimate of the actual queue size. [?]
To get 10 Mb/s with on a 360 ms path, you need 450000 bytes of buffer space. [?]
>
Localize all path problems by testing progressively smaller sections of the full path. [?]
Tester validation: Pass! [?]
No internal tester problems were detected.
Tester version: $Id: pathdiag.py,v 1.47 2009/06/10 21:19:57 mathis Exp $
![[Data_Rate_gnuplot]](./121-74-45-46.telstraclear.net:2012-02-20-22:16:14rate.png)
![[RTT_gnuplot]](./121-74-45-46.telstraclear.net:2012-02-20-22:16:14rtt.png)
![[Loss_Rate_gnuplot]](./121-74-45-46.telstraclear.net:2012-02-20-22:16:14loss.png)
![[power_gnuplot]](./121-74-45-46.telstraclear.net:2012-02-20-22:16:14pow.png)