Cisco Systems N3KC3048TP1GE snooping explicit-tracking, snooping fast-leave, Command or Action

Configuring IGMP Snooping

Configuring IGMP Snooping Parameters

	Command or Action	Purpose
Step 5	switch(config-vlan)# ip igmp	Tracks IGMPv3 membership reports from individual hosts
	snooping explicit-tracking	for each port on a per-VLAN basis. The default is enabled on
		all VLANs.
Step 6	switch(config-vlan)# ip igmp	Supports IGMPv2 hosts that cannot be explicitly tracked
	snooping fast-leave	because of the host report suppression mechanism of the
		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.
Step 7	switch(config-vlan)# ip igmp	Removes the group from the associated VLAN port if no hosts
	snooping	respond to an IGMP query message before the last member
	last-member-query-interval	query interval expires. Values range from 1 to 25 seconds.
	seconds	The default is 1 second.
Step 8	switch(config-vlan)# ip igmp	Configures a snooping querier when you do not enable PIM
	snooping querier IP-address	because multicast traffic does not need to be routed. The IP
		address is used as the source in messages. The default is
		disabled.
Step 9	switch(config-vlan)# ip igmp	Limits the membership report traffic sent to multicast-capable
	snooping report-suppression	routers. When you disable report suppression, all IGMP
		reports are sent as is to multicast-capable routers. The default
		is enabled.
Step 10	switch(config-vlan)# ip igmp	Configures a static connection to a multicast router. The
	snooping mrouter interface	interface to the router must be in the selected VLAN. You
	interface	can specify the interface by type and number.
Step 11	switch(config-vlan)# ip igmp	Configures a static connection to a virtual port channel (vPC)
	snooping mrouter vpc-peer-link	peer link. By default, the vPC peer-link is considered as a
		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-linkcommand. The IGMP snooping mrouter
		vpc-peer-link should also be globally disabled on the peer
		VPC switch.
Step 12	switch(config-vlan)# ip igmp	Configures an interface belonging to a VLAN as a static
	snooping static-group	member of a multicast group. You can specify the interface
	group-ip-addr [source	by type and number.
	source-ip-addr]interface interface

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