User Manual for the NETGEAR 7300S Series Layer 3 Managed Switch Software
8-108 Switching Commands
202-10088-01, March 2005
set igmp mcrtrexpiretime
This command sets the Multicast Router Present Expiration time on the system. This is the amount
of time in seconds that a switch will wait for a query to be received on an interface before the
interface is removed from the list of interfaces with multicast routers attached. The range is 0 to
3600 seconds. A value of 0 indicates an infinite timeout, i.e. no expiration.
Default 0
Format set igmp mcrtrexpiretime <0-3600>
Mode Global Config
no set igmp mcrtrexpiretime
This command sets the Multicast Router Present Expiration time on the system to 0. A value of 0
indicates an infinite timeout, i.e. no expiration.
Format no set igmp mcrtrexpiretime
Mode Global Config

show igmpsnooping

This command displays IGMP Snooping information. Configured information is displayed
whether or not IGMP Snooping is enabled. Status information is only displayed when IGMP
Snooping is enabled.
Format show igmpsnooping
Mode Privileged EXEC
Admin Mode This indicates whether or not IGMP Snooping is active on the switch.
Group Membership Interval This displays the IGMP Query Interval Time. This is the amount of time a
switch will wait for a report for a particular group on a particular interface
before it sends a query on that interface. This value may be configured
Max Response Time This displays the amount of time the switch will wait after sending a query on an
interface because it did not receive a report for a particular group on that inter-
face. This value may be configured.
Multicast Router Present Expiration Time If a query is not received on an interface within this
amount of time, the interface is removed from the list of interfaces with multi-
cast routers attached. This value may be configured.
Interfaces Enabled for IGMP Snooping This is the list of interfaces on which IGMP Snooping is
enabled.