“ASR 9K + NX7K” DCI Solution Overview MC-LAG + vPC - Cisco ...

PBB-EVPN – for Simplicity and High ScaleEVPN• Is conceptually simple. In reality, it’s not. It has complex BGP route to addresssplit-horizon, DF selection, etc• Advertises each customer MAC address as BGP route. So it’s not scalablesolution for large scale deploymentPBB-EVPN• Leverage PBB header to dramatically simplify the EVPN operation. So it’s not“PBB+EVPN”. In fact, it’s much more simple than EVPN itself• Only advertises B-MAC address via BGP. It’s highly scalable solution• Has lots of other advantages in addition to scale and simplicity: draft-ietfl2vpn-pbb-evpn-03