2.10 - eBGP aggregate to BBs -- Announce just major subnet -- or major + loopback?
On 2.10, you need to send a aggregate to the BBs.
I've seen inconsistent behavior in this from lab to lab so I'm also asking for general advice here.
1) Is it necessary to annouce both your major subnet and loopback network to BB routers (for this lab, and in general)? Or is BB reachability of loopbacks not necessary?
1*) In context of this question, the question says "an aggregate block", not block(s), so I would assum only the majro subnet (129.x.0.0/16) and not also your loopbacks, but the solution had both advertised.
2) In general, is it necessary for loopbacks to reach the BB network? Most ping testing examples I see do not ping from the loopbacks, and in many labs it does fail.
As you might guess, I only advertise 220.127.116.11/16, and I don't know if it's correct or not in a LAB scenario.