[c-nsp] NCS-5001 - MPLS L3VPN Issue

Nick Cutting ncutting at edgetg.co.uk
Tue Mar 1 03:42:01 EST 2016

Just like a fresh install of windows 95 is better than upgrading from 3.11

It feels cleaner :)

-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Gert Doering
Sent: 01 March 2016 08:22
To: Tom Hill
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] NCS-5001 - MPLS L3VPN Issue


On Tue, Mar 01, 2016 at 12:35:23AM +0000, Tom Hill wrote:
> How does that affect 'network state'? Either it works after upgrade, 
> or it does not?

Well, I could see the fear that "not everything is really on the same level" (like, some features are missing bugfixes, etc.) and much later, you run into weird "it works on this device, but fails on that one, and both claim to run the same level of IOS XR" issues.

It's an expression of distrust to the software upgrade process...

I do not have a personal opinion on "upgrade from 4.3.4 to 5.x" vs. "clear the box and turbo-boot" - upgrading sounds like the path that will impact service less long (though not necessarily taking less time overall), and I certainly do hope that a full upgrade will totally remove all traces from prior OS versions and SMUs - but am totally lacking arguments and experience either way.


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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de

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