To get the base mac address command issue a command "sh version"
On most of the cat switches you will see same mac address on all vlan interfaces. Cisco switches support per-vlan mac-address table or CAM table. This allows the switches to maintain mac-address table per vlan, hence having the same mac-address on multiple-vlan interfaces is not an issue.
The 2970 and 3750 series switches have a unique mac-addresses for each SVI. SO the number of SVI you will create you will be assigned a new mac address.
To summarize is most of the cat switches per-vlan mac-address table or CAM table is supported.
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...