Connect to the the core switch with ip 5.5.5.5 with ssh protocol, click > Open, then insert user/pass that has privileged rights
Enable Multicast Active and Query/Age Interval shorter than defaults
enable
configure terminal
ip multicast active
ip multicast query-interval 10
ip multicast age-interval 40
Enable Multicast vlan and configure the mappings
enable
configure terminal
ip multicast mvr mvlan 3200 group 239.1.2.1 to 239.1.2.10
Configure vlan 3200 toward multicast streamer. It doesnt need an IP
enable
configure terminal
vlan 3200 name Source-Multicast by port
untagged ethe 1/1/16
spaning-tree
multicast mvr source
multicast passive
Configure vlan 3501 toward floor. It needs an IP which is pushed from DHCP server, so this switch is as DHCP relay
enable
configure terminal
Vlan 3501 name Receiver01-Multicast by port
tagged ethe 1/21
spanning-tree
multicast mvr receiver
multicast active
multicast fast-leave-v2
exit
interface ve 3501
ip address 172.25.1.1 255.255.255.0
ip helper-address 1 172.16.16.10