[j-nsp] MX and microbursting...

[sthaug at nethelp.no]

> I have tuned up buffers and hold-queues on the 7200 and this has drastically 
> reduced the number of dropped packets, but still there is this rx-ring 
> limitation.  This is actually a fairly well known issue as I understand it.
> 
> Is there anything I could do on the MX to control the microbursting outbound 
> towards the 7200? 

You might be able to do something with Ethernet flow control - I don't 
remember if the NPE-G2 can send pause frames. However, most likely you
have to do shaping on the MX. Shaping can buffer and smooth out bursts.
Obviously, to do this it has to *delay* some packets.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no