Take a look at the metrics option in HPN-SSH. It does not, specifically,
do a ping but it can get you a lot of information about what is
happening in the TCP stack if that might help. It might be too
microlevel for what you are looking to do though. Essentially, it gives
you a periodic dump of the TCP_INFO struct (in Linux and BSD) on both
sides of the connection. That doesn't give you latency metrics in and of
itself though.
The metrics option could probably be extended to get the send/recv times
of the SSH_MSGs it sends out but, of course, that comes with the
overhead of processing and I'm not sure how much latency that, in and of
itself, would add.
Anyway, source code is at https://github.com/rapier/openssh-portable.
More information at https://psc.edu/hpn-ssh-home including ppas for rpms
and debs.
Chris
On 7/27/23 5:14 PM, Roland Mainz wrote:
Hi!
----
Before I start writing one myself...
... did anyone ever wrote a tool to measure the latency of a ssh
connection, a la "ping" ?
----
Bye,
Roland
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