[j-nsp] MX80 upgrade path 18.4R

[nikosietf at gmail.com]

It is true that the official path will tell you that you should follow from
15 to 16 then 17 then 18 but I did around 30+ upgrades from 16 to 18 without
any problems. 
>From 10 to 15 I guess you should go to 14 first but from 16 you can safely
move to 18 without any issues. The ones I am talking about are non-issue
upgrades.


-----Original Message-----
From: juniper-nsp <juniper-nsp-bounces at puck.nether.net> On Behalf Of Tobias
Heister
Sent: Sunday, June 14, 2020 10:59 AM
To: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] MX80 upgrade path 18.4R

Hi,

On 14.06.2020 10:50, Robert Hass wrote:
> I have old MX80 running 10.4R14.2.
> I would like to upgrade it to 18.4R.
> But what upgrade I should use ?
> 
> 10.4R -> 15.1R and to 18.4R ?

There are probably official upgrade pathes taking a dozen intermediate steps
(three LTS releases at a time or something like that is officially
supported, and starting from $some version in the 16/17 all releases are
considered LTS). As The MX80 takes ages to do just one upgrade this would
take days. Also it could be quite hard to actually get intermediate releases
for the older steps (JTAC typically has them on
request)

I would suggest to backup the config do a usb reinstall to the target
release and reapply the config.

--
regards
Tobias
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