106
Enabling the IGMP host tracking function globally
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter public network IGMP
view/VPN instance IGMP
view.
igmp
[
vpn-instance
vpn-instance-name
]
N/A
3.
Enable the IGMP host
tracking function globally.
host-tracking
Disabled by default.
Enabling the IGMP host tracking function on an interface
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface
interface-type
interface-number
N/A
3.
Enable the IGMP host
tracking function on the
interface.
igmp host-tracking
Disabled by default.
Setting the DSCP value for IGMP messages
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter public network IGMP
view or VPN instance IGMP
view.
igmp
[
vpn-instance
vpn-instance-name
]
N/A
3.
Set the DSCP value for
IGMP messages.
dscp
dscp-value
Optional.
By default, the DSCP value in
IGMP messages is 48.
Configuring IGMP SSM mapping
Because of some possible restrictions, some receiver hosts on an SSM network might run IGMPv1
or IGMPv2. To provide SSM service support for these receiver hosts, configure the IGMP mapping
feature on the last-hop router.
Configuration prerequisites
Before you configure the IGMP SSM mapping feature, complete the following tasks:
•
Configure any unicast routing protocol so that all devices in the domain are interoperable at the
network layer.
•
Configure basic IGMP functions.
