[j-nsp] Miercom Competitive Performance Testing Results: Cisco ASR9000 vs Juniper MX960

[Pekka Savola]

On Thu, 24 Sep 2009, Richard A Steenbergen wrote:
> Well, we saw something similar (that I've described on this list several
> times) but not exactly what you described, starting somewhere in 7.x and
> continuing until 8.5 where it was fixed on most platforms (including
> MX).

For reference, this thread from Feb 2007 describes it at least once:
http://www.mail-archive.com/juniper-nsp@puck.nether.net/msg00188.html

We saw this issue as well, but it apparently (for us), resulted in in 
RIB sync slowness only; there was no (apparent, or at least major) 
packet loss.

Somewhere around 8.x -- maybe 8.5 or earlier -- it got worse instead 
of got fixed.  Now it's causing significant packet loss as well. 
Maybe we have a cornercase that got worse.  Or there really are some 
architecture specific differences that might explain the difference in 
behaviour (in particular I'm speculating about VERY old, memory/CPU 
constrained T320 FPCs).  But the bad news is that JTAC's response is 
that this is working as designed.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings