For point 1. I agree. The VLAN ID is only carried in an 802.1Q header, so if there is no 802.1Q between two switches, then they can use the same VLAN ID with no conflict. CDP reports native VLAN mismatches, but again this is between two switches running 802.1Q directly.
For point 2, I agree. I think current software supports 4096 VLANs.
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...