3com 5500-SI Manual De Usuario
328
C
HAPTER
18: M
ULTICAST
P
ROTOCOL
Configuring IGMP
Basic IGMP configuration includes:
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Advanced IGMP configuration includes:
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Enabling Multicast
Enabling IGMP on an Interface
You must enable multicast before you can execute the
igmp enable
command.
After this, you can initiate IGMP feature configuration.
Perform the following configuration in Interface View.
By default, IGMP is not enabled.
Configuring the IGMP Version
Perform the following configuration in Interface View.
By default, IGMP Version 2 is used.
All routers on a subnet must support the same version of IGMP. After detecting
the presence of IGMP Version 1 system, a router cannot automatically switch to
Version 1.
the presence of IGMP Version 1 system, a router cannot automatically switch to
Version 1.
Table 328 Enabling/Disabling IGMP on an interface
Operation
Command
Enable IGMP on an interface
igmp enable
Disable IGMP on an interface
undo igmp enable
Table 329 Selecting the IGMP version
Operation
Command
Select the IGMP version that the router uses
igmp version { 1 | 2 }
Restore the default setting
undo igmp version