[j-nsp] Detecting OSPF packet drops

[sthaug at nethelp.no]

> When I do a commit on an somewhat buxy MX80, I see
> 
> Nov 27 21:14:10.443024 OSPF dropped 172 received packets due to flow blockage
> 
> as long as I have set ospf traceoptions flag error. Without
> traceoptions, the error is not logged.
> 
> Now, JTAC is telling me that I cannot run with any traceoptions on that
> box in production. That leaves me completely in the dark when it comes
> to dropped OSPF packets, and I will have no way of knowing if the packet
> drops hit a level where I risk losing neighbors.
> 
> Is there anything I can do to monitor those drops, without using
> traceoptions?

Probably not. The MX80 has a significantly underpowered RE CPU. Bad
enough that we have basically stopped buying MX80s, mostly for that
reason alone.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no