Operation Manual – Multicast Protocol
H3C S3610&S5510 Series Ethernet Switches
Chapter 2 IGMP Snooping Configuration
2-9
Follow these steps to configure the version of IGMP Snooping:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter VLAN view
vlan vlan-id
—
Configure the version of
IGMP Snooping
igmp-snooping version
version-number
Optional
Version 2 by default
Caution:
If you switch IGMP Snooping from version 3 to version 2, the system will clear all IGMP
Snooping forwarding entries from dynamic joins, and will:
z
Keep forwarding entries for version 3 static (*, G) joins;
z
Clear forwarding entries from version 3 static (S, G) joins, which will be restored
when IGMP Snooping is switched back to version 3.
For details about static joins, Refer to
2.4 Configuring IGMP Snooping Port Functions
2.4.1 Configuration Prerequisites
Before configuring IGMP Snooping port functions, complete the following tasks:
z
Enable IGMP Snooping in the VLAN or enable IGMP on the desired VLAN
interface
z
Configure the corresponding port groups.
Before configuring IGMP Snooping port functions, prepare the following data:
z
Aging time of router ports,
z
Aging timer of member ports, and
z
Multicast group and multicast source addresses
2.4.2 Configuring Aging Timers for Dynamic Ports
If the switch receives no IGMP general queries or PIM hello messages on a dynamic
router port, the switch removes the port from the router port list when the aging timer of
the port expires.
If the switch receives no IGMP reports for a multicast group on a dynamic member port,
the switch removes the port from the outgoing port list of the forwarding table entry for
that multicast group when the aging timer of the port for that group expires.
