55
Multicast VLAN configuration task list
Tasks at a glance
(Required.) Perform one of the following tasks:
•
Configuring a sub-VLAN-based multicast VLAN
•
Configuring a port-based multicast VLAN
Configuring user port attributes
Assigning user ports to a multicast VLAN
Setting the maximum number of multicast VLAN forwarding entries
If you have configured both a sub-VLAN-based multicast VLAN and a port-based multicast VLAN on
a device, the port-based multicast VLAN configuration takes effect.
Configuring a sub-VLAN-based multicast VLAN
To configure a sub-VLAN-based multicast VLAN, configure a VLAN as a multicast VLAN, and assign
the VLANs that contain multicast receivers to the multicast VLAN as sub-VLANs.
Configuration prerequisites
Before you configure a sub-VLAN-based multicast VLAN, complete the following tasks:
•
Create VLANs as required.
•
Enable IGMP snooping for the VLAN to be configured as the multicast VLAN, and for the
VLANs to be configured as sub-VLANs.
Configuration restrictions and guidelines
When you configure a sub-VLAN-based multicast VLAN, follow these restrictions and guidelines:
•
The VLAN to be configured as the multicast VLAN must exist.
•
The VLANs to be configured as sub-VLANs of the multicast VLAN must exist and cannot be
multicast VLANs or sub-VLANs of any other multicast VLAN.
•
The total number of multicast VLANs on a device cannot exceed the upper limit.
Configuration procedure
To configure a sub-VLAN-based multicast VLAN:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure a VLAN as a
multicast VLAN and enter its
view.
multicast-vlan
vlan-id
By default, a VLAN is not a
multicast VLAN.
3.
Assign the specified VLANs
to the multicast VLAN as
sub-VLANs.
subvlan
vlan-list
By default, a multicast VLAN does
not have any sub-VLANs.