perfsonar-user - [perfsonar-user] Error in RTT graph?

Subject: perfSONAR User Q&A and Other Discussion

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From: Darryl K Wohlt <>
To: "" <>
Subject: [perfsonar-user] Error in RTT graph?
Date: Thu, 12 Dec 2024 19:32:53 +0000
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Msip_labels:

Hi Folks,

While running a TWAMP test from our psonar10 host to a SLAC host, we noticed the RTT graph seems a few decimal points off in its data values.

[root@psonar10 netadmin]# ping psnr-oct-v40.slac.stanford.edu

PING psnr-oct-v40.slac.stanford.edu (134.79.235.226) 56(84) bytes of data.

64 bytes from psnr-oct-v40.slac.stanford.edu (134.79.235.226): icmp_seq=1 ttl=51 time=46.9 ms

64 bytes from psnr-oct-v40.slac.stanford.edu (134.79.235.226): icmp_seq=2 ttl=51 time=46.8 ms

64 bytes from psnr-oct-v40.slac.stanford.edu (134.79.235.226): icmp_seq=3 ttl=51 time=46.9 ms

64 bytes from psnr-oct-v40.slac.stanford.edu (134.79.235.226): icmp_seq=4 ttl=51 time=47.0 ms

64 bytes from psnr-oct-v40.slac.stanford.edu (134.79.235.226): icmp_seq=5 ttl=51 time=47.0 ms

64 bytes from psnr-oct-v40.slac.stanford.edu (134.79.235.226): icmp_seq=6 ttl=51 time=46.9 ms

--- psnr-oct-v40.slac.stanford.edu ping statistics ---

6 packets transmitted, 6 received, 0% packet loss, time 5002ms

rtt min/avg/max/mdev = 46.822/46.899/46.994/0.060 ms

My apologies is this has already been reported.

Cheers,

Darryl

Darryl K. Wohlt

Senior Network Analyst

ITD/NCS/Network Services

Fermi National Accelerator Laboratory

P.O. Box 500, MS 368

Batavia, Illinois 60510

USA

630 840 2901 office

630 945 5687 mobile