I've been using IPFIX on a few MX80's for a while now, the only impact I've seen on the RE CPU is that it can spike to 100% during a commit, if the router also has a full BGP table.
Otherwise the RE sits at 6%. Using the default Jflow on the MX80's was horrible, the RE CPU would sit around 70% most of the time, and if doing a 1:1 sampling rate around 25% of the flows were lost. -- Dicko. On 30 November 2012 06:45, Pavel Lunin <[email protected]> wrote: > 2012/11/29 Saku Ytti <[email protected]> > > > On (2012-11-29 20:34 +0400), Pavel Lunin wrote: > > > > > AFAIK, at least as of 11.something, BFD was handled by RE on MX80, not > > > the host-CPU like it is on the big MXes. Looks like it's because the > > > host-CPU on MX80 is quite less quick (marketing way of reading this is > > > > I suppose host-CPU means PFE/LC CPU? MX80 has pq3 8544, MPC2 has pq3 > 8548. > > MPC2 needs to talk to two trios, MX80 only one. So it does not feel like > > MX80 PFE CPU is underpowered compared to big brothers. > > > From the frequency point of view — yes. Not sure my knowlege is enough for > a full-scale Steve Jobs' style megaherz-myth holywar, but looks like the > 8548's built-in ethernet can be the key: > http://www.freescale.com/webapp/sps/site/taxonomy.jsp?code=PCPPCMPC85XX > > Well' don't get me wrong, I don't know the right anwer, I only heard some > rumors that MX80 "linecard" host subsystem is weeker that that of the MPCs. > It might be totally wrong though. > > IMHO, a good field way to check whether it's of the same capability would > be to test inline Trio IPFIX performance on MX80. Flow export is done by > this CPU. I've been wondering how powerful MX80 is in inline JFlow since > Juniper announced this feature, but didn't have an opportunity to test it. > > -- > Regards, > Pavel > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp > _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
