"ping -T tsonly" - What does the output mean? How is the time stamp converted?

[epsilon]

A co-worker asked me about this and and I don't have any idea what the
output means. When we use the "-T tsonly" option for "ping", there is
the output with "TS:" and some values. I've looked for documentation
on this, but can't find anything. Does anyone know how to convert
these time stamp values?

host-a:/home/dncs$ ping -T tsonly host-b
PING host-b (10.253.0.1) 56(124) bytes of data.
64 bytes from host-b (10.253.0.1): icmp_seq=0 ttl=254 time=0.948 ms
TS: 72547555 absolute
12668885
-11646024
11646024
-12668884

64 bytes from host-b (10.253.0.1): icmp_seq=1 ttl=254 time=0.934 ms
TS: 72548556 absolute
12668884
-11646022
11646022
-12668883

--- host-b ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.934/0.941/0.948/0.007 ms, pipe 2

[Bryan Smith]

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Yes those are ICMP timestamp values and they really are human readable,
BUT in milliseconds since midnight UTC(basically not human readable).
Write a script and pipe ping into it... 72547555/3600000 equals
20.15blahblahblah hours/mintues/seconds. If you really want it you have
to work for it. Or use wireshark or ethereal

- --
A healthy diet includes, Linux, Linux and more Linux.
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