Working on my next tech longpost for Cohost.
This will focus on setting up a BGP route reflector on RouterOS 6, with 7 to follow soon after.
While 6 is entering it's EOL, it remains (for now) the only LTS option. You'd generally want to run a BGP router on an LTS release, so this will be covered.
If 7 LTS comes out before the post somehow, 6 instructions may be dropped.
