Cisco Nexus 5000 Series Switch CLI Software Configuration Guide (OL-16597-01, July 2009)

Procedure
PurposeCommand or Action
Enters configuration mode.switch# configure terminal
Step 1
Globally enables IGMP snooping. The default is enabled.switch(config)# ip igmp snooping
Step 2
If the global setting is disabled, then all VLANs
are treated as disabled, whether they are enabled
or not.
Note
Enters VLAN configuration mode.
switch(config)# vlan vlan-id
Step 3
Enables IGMP snooping for the current VLAN. The default
is enabled.
switch(config-vlan)# ip igmp
snooping
Step 4
If IGMP snooping is enabled globally, this
command is not required.
Note
Tracks IGMPv3 membership reports from individual hosts
for each port on a per-VLAN basis. The default is enabled
on all VLANs.
switch(config-vlan)# ip igmp
snooping explicit-tracking
Step 5
Supports IGMPv2 hosts that cannot be explicitly tracked
because of the host report suppression mechanism of the
switch(config-vlan)# ip igmp
snooping fast-leave
Step 6
IGMPv2 protocol. When you enable fast leave, the IGMP
software assumes that no more than one host is present on
each VLAN port. The default is disabled for all VLANs.
Removes the group from the associated VLAN port if no
hosts respond to an IGMP query message before the last
switch(config-vlan)# ip igmp
snooping
Step 7
member query interval expires. Values range from 1 to 25
seconds. The default is 1 second.
last-member-query-interval
seconds
Configures a snooping querier when you do not enable PIM
because multicast traffic does not need to be routed. The IP
switch(config-vlan)# ip igmp
snooping querier IP-address
Step 8
address is used as the source in messages. The default is
disabled.
Limits the membership report traffic sent to
multicast-capable routers. When you disable report
switch(config-vlan)# ip igmp
snooping report-suppression
Step 9
suppression, all IGMP reports are sent as is to
multicast-capable routers. The default is enabled.
Configures a static connection to a multicast router. The
interface to the router must be in the selected VLAN. You
can specify the interface by type and number.
switch(config-vlan)# ip igmp
snooping mrouter interface
interface
Step 10
Configures an interface belonging to a VLAN as a static
member of a multicast group. You can specify the interface
by type and number.
switch(config-vlan)# ip igmp
snooping static-group
group-ip-addr [source
source-ip-addr] interface interface
Step 11
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01 219
Configuring IGMP Snooping Parameters
IGMP Forwarding