C
HAPTER
39
| Multicast Filtering Commands
IGMP (Layer 3)
– 943 –
ip igmp version This command configures the IGMP version used on an interface. Use the
no form of this command to restore the default.
SYNTAX
ip igmp version {1 | 2 | 3}
no ip igmp version
1 - IGMP Version 1
2 - IGMP Version 2
3 - IGMP Version 3
DEFAULT SETTING
IGMP Version 2
COMMAND MODE
Interface Configuration (VLAN)
COMMAND USAGE
â—† All routers on the subnet must support the same version. However, the
multicast hosts on the subnet may support any of the IGMP versions
1-3.
â—† If the switch receives an IGMP Version 1 Membership Report, it sets a
timer to note that there are Version 1 hosts which are members of the
group for which it heard the report.
If there are Version 1 hosts present for a particular group, the switch
will ignore any Leave Group messages that it receives for that group.
EXAMPLE
Console(config-if)#ip igmp version 1
Console(config-if)#
clear ip igmp group This command deletes entries from the IGMP cache.
SYNTAX
clear ip igmp group [group-address | interface interface]
group-address - IP address of the multicast group.
interface
vlan vlan-id - VLAN ID. (Range: 1-4093)
DEFAULT SETTING
Deletes all entries in the cache if no options are selected.