[j-nsp] What exactly causes inconsistent RTT seen using ping utility in Junos?

[Saku Ytti]

On Mon, 15 Apr 2019 at 14:37, <adamv0025 at netconsultings.com> wrote:

> I'm afraid this is not a valid test to prove the effect of relative process
> priorities within the RE, doing this you're slowing down the clock on the
> complete RE simulation as a whole (all simulated processes slowed down
> equally).
..

> Again this could be because these kinds of operations have lower process
> priority than the process handling ping.

ACK, RPD is involved in ICMP and RIB/FIB management, and to the OS
it's just single thread (in this context, newer RPD does have few
separate OS threads). So what you'd need to do, is have RPD run some
high priority task. BGP churn which will cause FIB changes likely is
good candidate as way to cause variant delay to ICMP.

-- 
  ++ytti