Configuring basic igmp functions, Enabling igmp, Enabling igmp for the public network – H3C Technologies H3C S12500 Series Switches User Manual
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Task
Remarks
Optional.
Optional.
Optional.
Configuring multicast forwarding on a downstream
interface
Optional.
For the configuration tasks described in this section:
•
In IGMP view, the configuration takes effect on all interfaces. In interface view, the configuration
takes effect on only the current interface.
•
If a feature is not configured on an interface in interface view, the global configuration in IGMP
view will apply to that interface. If a feature is configured in both IGMP view and interface view, the
configuration in interface view will be given priority, regardless of the configuration sequence.
Configuring basic IGMP functions
Before you configure basic IGMP functions, complete the following tasks:
•
Configure any unicast routing protocol so that all devices in the domain are interoperable at the
network layer.
•
Configure PIM-DM or PIM-SM.
•
Determine the IGMP version.
•
Determine the multicast group and multicast source addresses for static group member
configuration.
•
Determine the ACL rule for multicast group filtering.
•
Determine the maximum number of multicast groups that an interface can join.
Enabling IGMP
To configure IGMP, you must enable IGMP on the interface on which the multicast group memberships
will be established and maintained.
Enabling IGMP for the public network
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable IP multicast routing.
multicast routing-enable
Disabled by default.
3.
Enter interface view.
interface interface-type
interface-number
N/A
4.
Enable IGMP.
igmp enable
Disabled by default.