Re: re: dell switches
Indeed, buy a new switch and rack mount it, have a good guess (and by guess I mean work out as best you can), what the problematic switch has to be doing, configure the new switch accordingly, swop all the connections over. Then it's a case of seeing who screams about loss of connectivity and adjust config accordingly.
Management will absolutely hate this plan, just calmly point out that it's either this approach (where there is at least the possibility of backing out), or wait until the old switch catastrophically fails, at which point people start losing their jobs, possibly starting with the management!
And afterwards you'll have a nice new (well actually old) switch to be factory reset and used for something else.