[c-nsp] VxLAN EVPN decision

[Satish Patel]

Folks,

when someone should decide to go with VxLAN EVPN base clos design or
Tier 3 (core/dist/access) design? what criteria decide which design
would be best fix?

Following criteria in my mind.
1. North/South  Vs east-west traffic
2. BUM suppression ( Classic design doesn't help here)
3. If you hate STP (but vPC is exception)
4. scale (STP has limitation because of large L2)
5. complexity (Classic Tier 3 is easy to configure and manage)

what other things people keep in mind to decide go with Tier 3 vs Clos
(VxLAN+EVPN)