[j-nsp] Software Upgrade failures on EX4200

[Chuck Anderson]

Personally I would stick with 12.3.  They came out with another service release, 12.3R12-S6.

On Thu, Sep 28, 2017 at 03:26:36AM +1000, Kamal Dissanayaka wrote:
> Hi Jason,
> 
> Thanks for the response,
> This happened to us irrespective of version, some switches were from
> 12.3.r9 to 15.1.r2.9 and some were from 15.1.r2.9 to 15.1.R6s2.1  as far as
> I remember.
> 
> 
> Same thing here with the JTAC support, they say go to the site and upgrade
> using USB if the device fails during upgrade. They don't understand
> practical difficulties when you have frequent failures.
> 
> Best Regards
> 
> Kamal
> 
> 
> 
> 
> On Wed, Sep 27, 2017 at 11:58 PM, Jason Healy <jhealy at logn.net> wrote:
> 
> > On Sep 27, 2017, at 1:56 AM, Kamal Dissanayaka <kamalasiri at gmail.com>
> > wrote:
> > >
> > > The issue with this is remote upgrades. Remote upgrades fails randomly
> > and
> > > some has to visit the sit to fix it. Is there any way fix it ?
> >
> > What version were you running previously?  We bumped all of our 4200s from
> > 12.x to 15.x and got badly burned with switches that didn't come up.
> >
> > JTAC told us (after the fact) that we needed to be on the VERY LATEST 12
> > series before making the upgrade or else there might be 'issues'.  Ended up
> > having to do a format reinstall from USB on about a third of the switches.
> >
> > Jason