[j-nsp] MX80 upgrade path 18.4R

[Brian Johnson]

I agree with Tobias. If the unit is in production, expect some interruption in services as this type of install is the most disruptive, but should be doable within a maintenance window.

- Brian

> On Jun 14, 2020, at 4:59 AM, Tobias Heister <lists at tobias-heister.de> wrote:
> 
> 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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