H3C S5500-EI - Multicast VLAN Configuration Task List; Configuring a Sub-VLAN-Based Multicast VLAN; Configuration Guidelines; Configuration Procedure

67
Switch A, it sends only one copy of multicast data to Switch A in the multicast VLAN, and Switch A
distributes the data to all the member ports in the multicast VLAN.
For more information about IGMP snooping, router ports, and member ports, see "Configuring IGMP
sn
ooping."
For more information about VLAN tags, see Layer 2—LAN Switching Configuration Guide.
Multicast VLAN configuration task list
Task Remarks
Configuring a sub-VLAN-based multicast VLAN
Required
Use either approach.
Configuring a port-based
multicast VLAN
Configuring user port attributes
Configuring multicast VLAN ports
NOTE:
If you have configured both sub-VLAN-based multicast VLAN and port-based multicast VLAN on a
device, the port-based multicast VLAN configuration is given preference.
Configuring a sub-VLAN-based multicast VLAN
Before you configure sub-VLAN-based multicast VLAN, complete the following tasks:
• Create VLANs as required.
• Enable IGMP snooping in the VLAN to be configured as a multicast VLAN.
Configuration guidelines
• For the S5500-EI switches, you cannot configure multicast VLAN on a device with IP multicast
routing enabled.
• The VLAN to be configured as a multicast VLAN must exist.
• The VLANs to be configured as sub-VLANs of the multicast VLAN must exist and must not be
multicast VLANs or sub-VLANs of any other multicast VLAN.
• The total number of sub-VLANs of a multicast VLAN must not exceed the maximum number the
system can support.
Configuration procedure
In this approach, you configure a VLAN as a multicast VLAN and configure user VLANs as sub-VLANs
of the multicast VLAN.
To configure a sub-VLAN-based multicast VLAN: