If you follow Cisco's 3 tier architecture, you should restrict your VLAN boundaries on the distribution switch and should be running a L3 link between the core and the distribution. This means the SVI's are created on the distribution switch which will act as gateways for your VLANs.
This helps in restricting the broadcasts from reaching the core.
If your LAN is actually a collapsed core, you end up configuring the SVIs on the distribution switch which also acts as your core.
The core switches should NOT be doing layer 2. Therefore there is no bridging on the Core switches and no need for root bridges. A core switch should be routing packets and be layer 3 only. This eliminates fault domains.
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...