[j-nsp] How to upgrade M20 RE's with least downtime

[Richard A Steenbergen]

On Fri, Nov 12, 2004 at 04:43:20PM -0800, Paul Goyette wrote:
> I can't say from actual experience what the hit will be, but
> going from such diverse versions is probably going to cause
> a lot pain!  I would not be at all surprised if upgrading one
> RE to 6.3 starts sending "unexpected" stuff to the down-rev
> software on the other RE, causing it to do unexpected stuff.
> 
> I would strongly suggest that you plan on a complete reboot,
> possibly multiple reboots, as a way to estimate the down-time.

Well just for the record, the last time I did a 5.6 to 6.3 upgrade in this 
manner it did kernel panic the 5.6 RE, but not until after the switchover 
to the 6.3 RE was completed.

-- 
Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)