[j-nsp] Slow RE path 20 x faster then PFE path

[Saku Ytti]

Hey,

> This is very simple setup:
>
>  linux (.206) ---- LAN---- mx104(.210) ---- p2p---- isp (.209)
>
> Pretty much 1.4 is what is expected. The only place the delay occurs is on ingress from the ISP to MX104. If I ping MX104 outbound (.210) int I get 0.5 ms.
>
> No worries anyway ... just thought anyone run into this before.

Is this simplified topology or actual? Is it not possible that return
path is different? Entirely possible for SW and HW forwarded packets
to experience different path selection. So perhaps ISP is returning
packets via other path for HW packets, but other path via SW packets.

It's very difficult to imagine failure mode where packets would wait
consistent ~23ms on the mx104.

-- 
  ++ytti