[c-nsp] understanding the IP SLA "icmp-jitter" calculations

Saku Ytti saku at ytti.fi
Thu Apr 4 14:29:34 EDT 2019


Nathan does raise interesting point.

What if the RTT means just round time trip of X. Like it's not
specifically 'RTD' so it is conceivable that's RTT Jitter.

On Thu, 4 Apr 2019 at 21:07, Martin T <m4rtntns at gmail.com> wrote:
>
> Hi Nathan,
>
> > I could be wrong, but doesn't the output you provided above represent 1 ms of jitter?
>
> Yes, but the output of "sh ip sla statistics" in my first e-mail shows
> that RTT(round-trip time) is 1ms.
>
>
> Martin
>
> On Thu, Apr 4, 2019 at 8:47 PM Nathan Lannine <nathan.lannine at gmail.com> wrote:
> >>
> >> csr1000v#ping 192.168.11.2
> >> Type escape sequence to abort.
> >> Sending 5, 100-byte ICMP Echos to 192.168.11.2, timeout is 2 seconds:
> >> !!!!!
> >> Success rate is 100 percent (5/5), round-trip min/avg/max = 300/300/301 ms
> >> csr1000v#
> >
> >
> > Hello, Martin,
> >
> > I could be wrong, but doesn't the output you provided above represent 1 ms of jitter?
> >
> > Thank you,
> > Nathan



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  ++ytti


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