Undefined terms overload

I was able to ignore it for a while, but now I have run into one in two unrelated threads.

What does "bikeshedding" mean here?

And, what does "OOB" mean here--the decodes with which I am familiar do not seem to fit: Out of Bounds, Out Of Body, Out of Bed, Out of Business, Open Of Business (used to see this one many times daily), Out Of Bullets, Out Of Band (also familiar from telephone days).

I was able to ignore it for a while, but now I have run into one in two
unrelated threads.

What does "bikeshedding" mean here?

en.wikipedia.org/wiki/Parkinson's_law_of_triviality

And, what does "OOB" mean here--the decodes with which I am familiar do not

'out of band' - ideally: "Access the console of my equipment without
having to use the network my equipment is supporting"

Thanks--I've received several useful offers of help.

What does "bikeshedding" mean here?

en.wikipedia.org/wiki/Parkinson's_law_of_triviality

I'd forgotten the Parkinson's discussion and the term didn't stir anything up. I have current experience with the concept.

And, what does "OOB" mean here--the decodes with which I am familiar do not

'out of band' - ideally: "Access the console of my equipment without
having to use the network my equipment is supporting"

From another helpful message I was able to connect to the old telephone term that had the same functional definition in a different physical implementation.

Thanks, all.