H3C S7500 Series Ethernet Switches Operation Manual

Operation Manual – Multicast
H3C S7500 Series Ethernet Switches
Chapter 5 Multicast MAC Address Entry
Configuration
5-2
 Note:
z If the multicast MAC address entry to be created already exists, the system gives
you a prompt.
z If a multicast MAC address is added manually, the switch will not learn this multicast
MAC address again through IGMP Snooping. The undo mac-address multicast
command is used to remove the multicast MAC address entries created by the
mac-address multicast command manually, however, it cannot be used to remove
the multicast MAC address entries learned by the switch.
z If you want to add a port to a multicast MAC address entry created through the
mac-address multicast command, you must remove this entry first, create this
entry again, and then add the specified port to the forwarding ports of this entry.
z You cannot enable link aggregation on a port where you have configured a multicast
MAC address; and you cannot configure a multicast MAC address on an
aggregation port.
5.3 Displaying and Maintaining Multicast MAC Address
To do... Use the command... Remarks
Display the multicast MAC
address entry/entries
manually configured
display mac-address
multicast [ count ]
Available in any view.