[j-nsp] curious optic issue

[Saku Ytti]

> Fix is to remove+reinsert optic, or reload router. I've not yet tried
> 'test xfp 1 power off|on', but I'm guessing it'll help too.

I can confirm that 'test xfp 1 power off|on' 'fixes' the issue as well. 

I can also confirm that it triggers at certain time post-insertion, so
preventive measures of doing controlled off/on earlier than it triggers is
possible, while waiting to get optics swapped.

-- 
  ++ytti