Operation Manual – Multicast
H3C S3100 Series Ethernet Switches Chapter 2 IGMP Snooping Configuration
2-7
Caution:
z Before configuring related IGMP Snooping functions, you must enable IGMP
Snooping in the specified VLAN.
z Different multicast group addresses should be configured for different multicast
sources because IGMPv3 Snooping cannot distinguish multicast data from different
sources to the same multicast group.
2.2.3 Configuring Timers
This section describes how to configure the aging timer of the router port, the aging
timer of the multicast member ports,.
Table 2-5 Configure timers
Operation Command Remarks
Enter system view system-view
—
Configure the aging timer
of the router port
igmp-snooping
router-aging-time
seconds
Optional
By default, the aging time
of the router port is 105
seconds.
Configure the aging timer
of the multicast member
port
igmp-snooping
host-aging-time seconds
Optional
By default, the aging time
of multicast member ports
is 260 seconds
2.2.4 Configuring Fast Leave Processing
With fast leave processing enabled, when the switch receives an IGMP leave message
on a port, the switch directly removes that port from the forwarding table entry for the
specific group. If only one host is attached to a port, enable fast leave processing to
improve bandwidth management.
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