User's Manual

PurposeCommand or Action
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 member
switch(config-vlan)# ip igmp
snooping
Step 7
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 suppression, all IGMP
switch(config-vlan)# ip igmp
snooping report-suppression
Step 9
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 a static connection to a virtual port channel (vPC)
peer link. By default, the vPC peer-link is considered as a
switch(config-vlan)# ip igmp
snooping mrouter vpc-peer-link
Step 11
multicast router port and the multicast packet is sent to the
peer-link for each receiver VLAN. To send the multicast
traffic over a vPC peer-link to each receiver VLAN that has
orphan ports, use the no ip igmp snooping mrouter
vpc-peer-link command. The IGMP snooping mrouter
vpc-peer-link should also be globally disabled on the peer
VPC switch.
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 12
The following example shows configuring IGMP snooping parameters for a VLAN:
switch# configure terminal
switch(config)# vlan 5
switch(config-vlan)# ip igmp snooping last-member-query-interval 3
switch(config-vlan)# ip igmp snooping querier 172.20.52.106
switch(config-vlan)# ip igmp snooping explicit-tracking
Cisco Nexus 3000 NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)U3(1)
140 OL-26590-01
Configuring IGMP Snooping
Configuring IGMP Snooping Parameters