H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – Multicast
H3C S7500E Series Ethernet Switches Chapter 3 Multicast VLAN Configuration
3-2
To do… Use the command… Remarks
Enter system view
system-view
—
Configure a specific VLAN
as a multicast VLAN
multicast-vlan vlan-id
enable
Required
Disabled by default
Configure sub-VLANs for
a specific multicast VLAN
multicast-vlan vlan-id
subvlan vlan-list
Required
No sub-VLAN by default.
 Note:
z The VLAN to be configured as the multicast VLAN and the VLANs to be configured
as sub-VLANs of the multicast VLAN must exist.
z The VLANs to be configured as sub-VLANs of the multicast VLAN must not be
multicast VLANs
z The VLANs to be configured as the sub-VLANs of the multicast VLAN must not be
sub-VLANs of another multicast VLAN
z The number of sub-VLANs of the multicast VLAN must not exceed the
system-defined limit (an S7500E series Ethernet switch supports up to five multicast
VLANs, and supports up to 4000 sub-VLANs for each multicast VLAN. The total
number of sub-VLANs for all multicast VLANs on the switch cannot exceed 4000).
Caution:
z You cannot configure any multicast VLAN or a sub-VLAN of a multicast VLAN on a
device with IP multicast routing or routing enabled.
z After a VLAN is configured into a multicast VLAN, IGMP Snooping must be enabled
in the VLAN before the multicast VLAN feature can be implemented, while it is not
necessary to enable IGMP Snooping in the sub-VLANs of the multicast VLAN.
3.3 Displaying and Maintaining Multicast VLAN
To do… Use the command… Remarks
Display information about
a multicast VLAN and its
sub-VLANs
display multicast-vlan
[ vlan-id ]
Available in any view