The MAC address table is the Layer 2 switching, this output is caused by the devices connected to the ports as well as the configuration. Since the devices will have different MAC addresses and may be running multicast applications, the output will be different table. This command shows the MAC address of the devices that are "known" by the switch to be located out that port. Since this is a server farm, I assume that each port is connected directly to a different server. The output shows the VLAN and MAC addresses associated with each port.
For example port 5/20 is in vlan 148 and (assuming its connected to only 1 device) the server out that port has the MAC address of 0050.8bbd.4ed1.
The multicast entries show what multicast groups that a particular port is interested in seeing. The address 0100.5e05.0607 is a multicast group that the device connected to port g4/12 is requesting (using IGMP). So if there are multicast messages going to that layer 2 address, the switch will forward them to that port because the server is requesting them.
This output displayed is caused by the devices connected to the ports as well as the configuration. Since the devices will have different MAC addresses and may be running multicast applications, the output will be different.
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...