On 8/5/25 10:05, Chris Welti wrote:
Using the multi-step upgrade "install package replace" (or "install
prepare" on the older IOS-XR versions), you can relatively painlessly
do the time-consuming steps (copying/importing the ISO/package
installation) before the actual upgrades. Then, when you are ready to
do the upgrades during your maintenance window, you can just "install
apply" and it is rather quick.
Still, I do prefer the replace one file approach in classic IOS.
Other than that, we only upgrade when really necessary (critical
security bug, new feature). Luckily, that happens very rarely.
Which makes sense for the core (where IOS XR was born).
But Metro-E and edge applications can be rather volatile just for
features alone, never mind bugs.
Anyway, if you are not unhappy, that's good :-).
Mark.
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