[j-nsp] MX104 RE performance

[Richard Hesse]

Does the "fix" for PR836197 actually work? I had a BGP session flap last
night, and the KRT still showed 150k routes to be installed about 9 minutes
after the flap.

Oddly, restarting sampling daemon fixes the issue immediately.

-richard


On Thu, Apr 24, 2014 at 7:57 AM, Blake Willis <jnsp at 2112.net> wrote:

> On Sun Apr 13 2014, Gavin Henry wrote:
>
> > Any news yet?
>
> MX104 completed our dual-stack BGP convergence test approximately twice as
> fast
> as MX80.  Both boxes were running 13.2R4.
>
> Note that the RPD scheduling "fix" for PR836197
> (
> http://www.nanog.org/meetings/nanog57/presentations/Tuesday/tue.lightning2.steenbergen.juniper-slowfib.pdf
> )
> slowed convergence down a lot; MX104 under 13.2R4 runs our test in about
> the
> same time (maybe a little faster) as MX80 under 11.4R7.
>
> If you're looking seriously at the platform, you should ask your Juniper
> SE to
> PoC one with your use-case.
>
> > Am looking at a new MX5 with upgrade licenses vs this with 2 x 10G
>
> The new 2x10GE + full L3 bundles are commercially quite interesting.  The
> only
> less expensive MX is a base MX5 (if you don't need 10GE).
>
>         However, one thing I found to be braindead on the MX104 was the
> lack of
> dual flash chips or dual-root partitioning.  You simply can't snapshot on
> an RE
> without a USB key stuck in the front.  ACX has a similar architecture & had
> dual-root from FCS (and softupdates turned on too).  Hopefully journalled
> softupdates will make this less painful one day, but it's still a glaring
> omission (Juniper's continued lack of a useful AUX port on anything other
> than
> the now-EoL JSR is also annoying, but remains merely an annoyance).
>
> JTAC confirmed that this single-root architecture was an active engineering
> decision, so if you're looking at MX104 and want to be able to "request
> system
> snapshot" on this "hardened" platform without a USB key, then make sure
> your
> salesperson & SE know about it...
>
> ---
>  Blake Willis
>  Network Engineering Consultant
>  blake at 2112 dot net
>
>   "Education enabling individuals to overcome their reluctance or
> inability to
> take full advantage of technological advances and product innovation can
> be a
> means of increasing economic opportunity."
>
>    --Alan Greenspan
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