the access - distribution - core topology is one that scales very well and therefore is often suggested. However, to make an example we have Dreamhack (LAN-party with 5000 attendants) which this year goes from a access-distribution-core network to a access-core network. It is based around two Extreme Networks black diamonds.
Enough with that.
Most oftenly you don't have full mesh between core and distribution unless you only have 2 core routers or at least quite few. If you have say 10 core router, you most oftenly just connect you distribution switch/router to two of the core routers for redundancy.
Why should you change any metric!?!
I'd say it's better to have equal metrics so that you can load balance.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...