[j-nsp] MX104 recommended Junos version?

Matt Freitag mlfreita at mtu.edu
Fri Jun 23 09:52:28 EDT 2017

I'm still on 13.3R9, their previous recommendation, and don't have a

Matt Freitag
Network Engineer
Information Technology
Michigan Technological University
(906) 487-3696 <%28906%29%20487-3696>

On Fri, Jun 23, 2017 at 9:28 AM, Josh Baird <joshbaird at gmail.com> wrote:

> This page [1] shows that the recommended version is 15.1R6, but this page
> [1] says 14.1R7 for the MX104.  I know the MX104's PPC RE cannot use the
> SMP kernel included in 15.1, but I understand an older kernel will be
> installed for these PPC devices.
> I'm currently running 14.2R6.5 but I am having some problems with high CPU
> sporadically that doesn't necessarily correlate to any periods of high
> traffic, etc.  Every 6 hours, the RE CPU climbs until it reaches ~60%
> (sometimes higher into the ~80% range) and then falls back down to ~5%.  I
> never saw this behavior when we were running 13.x with the same traffic
> levels.
> "show chassis routing-engine" shows most of the CPU usage at this time is
> used by the kernel.
> "show system process extensive" shows that chassisd is the main hog.
> I suppose my question is.. what Junos release appears to be the most stable
> for the MX104 platform?  Not doing anything special here - a few eBGP
> peers, simple routing policy, etc.
> Thanks,
> Josh
> [1]
> https://kb.juniper.net/InfoCenter/index?page=content&
> id=KB21476&actp=METADATA
> [2] http://www.juniper.net/support/downloads/?p=mx104#sw
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