[j-nsp] Old JunOS upgrade path

Gert Doering gert at greenie.muc.de
Fri Mar 8 14:27:52 EST 2019


On Fri, Mar 08, 2019 at 10:38:16AM +0100, "Rolf Hanßen" wrote:
> usually they say not more than 2 major releases in one step (i.e. 13 -> 15
> -> 17).

So why is that?

Genuinely curious, as I do not have much JunOS upgrade experience - and
my Cisco IOS experience so far has been "you can go from wherever you 
are to wherever you want to go" - when going up, you can hit warnings
about "old config syntax", and when going down, you might lose config
bits that are "new" - but besides this, things generally work.


"If was one thing all people took for granted, was conviction that if you 
 feed honest figures into a computer, honest figures come out. Never doubted 
 it myself till I met a computer with a sense of humor."
                             Robert A. Heinlein, The Moon is a Harsh Mistress

Gert Doering - Munich, Germany                             gert at greenie.muc.de
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