3Com 3031 Command Reference Manual page 707

IGMP Configuration Commands 707
igmp version Syntax
igmp version { 1 | 2 }
undo igmp version
View
Interface view
Parameter
1: IGMP Version 1.
2: IGMP Version 2. By default, IGMP Version 2 is used.
Description
Using the igmp version command, you can specify the version of IGMP that a
router uses. Using the undo igmp version command, you can restore the default
value.
All systems running in the same sub-network must support the same version of
IGMP. When a router finds the system of Version 1, it cannot switch to Version 1
by itself.
Example
Specify Ethernet1/0/0 to use IGMP Version 1.
<3Com-Ethernet1/0/0] igmp version 1
reset igmp group Syntax
reset igmp group { all | interface interface-type interface-number { all |
group-address [ group-mask ] } }
View
User view
Parameter
all: All IGMP groups.
interface interface-type interface-number: Interface type and interface number.
group-address: IGMP group address.
group-mask: Network segment mask of group address.
Description
Using the reset igmp group command, you can delete the IGMP group joined on
the interface. The deletion of the group does not affect its joining again.
Example
Delete all the IGMP groups on all interfaces.
<3Com> reset igmp group all
Delete all the IGMP groups on the interface Ethernet0/0/0.