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Chapter 39: Multicast Filtering Commands
IGMP Snooping
ip igmp snooping
version
C
M
OMMAND
ODE
Global Configuration
C
U
OMMAND
SAGE
When a new upstream interface (that is, uplink port) starts up, the
•
switch sends unsolicited reports for all currently learned multicast
channels out through the new upstream interface.
This command only applies when proxy reporting is enabled (see
•
page
1154).
E
XAMPLE
Console(config)#ip igmp snooping unsolicited-report-interval 5
Console(config)#
This command configures the IGMP snooping version. Use the no form to
restore the default.
S
YNTAX
ip igmp snooping [vlan vlan-id] version {1 | 2 | 3}
no ip igmp snooping version
vlan-id - VLAN ID (Range: 1-4094)
1 - IGMP Version 1
2 - IGMP Version 2
3 - IGMP Version 3
D
S
EFAULT
ETTING
Global: IGMP Version 2
VLAN: Not configured, based on global setting
C
M
OMMAND
ODE
Global Configuration
C
U
OMMAND
SAGE
This command configures the IGMP report/query version used by IGMP
•
snooping. Versions 1 - 3 are all supported, and versions 2 and 3 are
backward compatible, so the switch can operate with other devices,
regardless of the snooping version employed.
If the IGMP snooping version is configured on a VLAN, this setting takes
•
precedence over the global configuration.
E
XAMPLE
The following configures the global setting for IGMP snooping to version 1.
– 1159 –
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