477
Chapter 26
IGMP Snooping Commands
The IGMP snooping commands are summarized in Table 42 and are
described in detail within the chapter.
Table 42. Internet Group Management Protocol Snooping Commands
Command Mode Description
“CLEAR IP IGMP” on page 478 Privileged Exec Clears all IGMP group membership
records.
“IP IGMP LIMIT” on page 479 Global
Configuration
Specifies the maximum number of
multicast addresses the switch is
allowed to learn.
“IP IGMP QUERIER-TIMEOUT” on
page 480
Global
Configuration
Specifies the time period in seconds
used by the switch to identify inactive
host nodes and multicast routers.
“IP IGMP SNOOPING” on page 481 Global
Configuration
Enables IGMP snooping on the
switch.
“IP IGMP SNOOPING FLOOD-
UNKNOWN-MCAST” on page 482
Global
Configuration
Disables the automatic suppression of
unknown multicast traffic.
“IP IGMP SNOOPING MROUTER” on
page 484
Global
Configuration
Manually identifies the ports where
multicast routers are connected.
“IP IGMP STATUS” on page 485 Global
Configuration
Specifies the IGMP host node
topology, of either single-host per port
or multiple-host per port.
“NO IP IGMP SNOOPING” on
page 486
Global
Configuration
Disables IGMP snooping on the
switch.
“NO IP IGMP SNOOPING
MROUTER” on page 487
Global
Configuration
Removes multicast router ports.
“SHOW IP IGMP SNOOPING” on
page 488
Privileged Exec Displays the parameter settings and
operational details of IGMP snooping.