Brocade Multi-Service IronWare Multicast Configuration Guide (Supporting R05.6.00) - Manual (Page 145)

Multi-Service IronWare Multicast Configuration Guide 133
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IP multicast traffic reduction
1
Brocade(config)# vlan 2
Brocade(config-vlan-2)# multicast pim-proxy-enable
To configure a Brocade device to function as an PIM proxy on VPLS instance V1, use the following
commands.
Brocade(config)# router mpls
Brocade(config-mpls)# vpls v1 10
Brocade(config--mpls-vpls-v1)# multicast pim-proxy-enable
Syntax: [no] multicast pim-proxy-enable
Configuring IGMP snooping tracking per VLAN or VPLS instance
When IGMP Snooping Tracking is enabled, the Brocade device immediately removes any IGMP host
port from the IP multicast group entry when it detects an IGMP-leave message on the specified
host port without first sending out group-specific queries to the interface. By default, IGMP
Snooping Tracking is disabled.
The ip multicast tracking command may be enabled globally as well as per VLAN basis. To enable
IGMP Snooping Tracking globally, enter a command such as the following.
Brocade(config)# multicast tracking
Syntax: [no] ip multicast tracking
The no form of this command disables the tracking process globally.
To enable IGMP Snooping Tracking per VLAN, enter commands such as the following.
Brocade(config)# vlan 100
Brocade(config-vlan-100)# multicast tracking
Syntax: [no] multicast tracking
The no form of this command disables the tracking process per VLAN.
To enable IGMP Snooping Tracking per VPLS instance, enter commands such as the following.
Brocade(config)# router mpls
Brocade(config-mpls)# vpls v1 10
Brocade(config--mpls-vpls-v1)# multicast tracking
For IGMPv3, the above command also internally tracks all the IGMPv3 hosts behind a given port.
The port is not removed from the IP multicast group entry in the forwarding table until all the hosts
behind that port have left that multicast group. When the last IGMPv3 host sends a IGMPv3 leave
message, the port is removed from the IP multicast group entry in the forwarding table immediately
without first sending out group_source_specific query to the interface
Syntax: [no] multicast tracking
The no form of this command disables the tracking process per VPLS instance.
Multicast snooping over VPLS will not load-balance the multicast traffic among multiple tunnels,
Multicast snooping over VPLS will not load-balance the multicast traffic among multiple tunnels,
NOTE
Multicast snooping over VPLS will not load-balance the multicast traffic among multiple tunnels
when IGMP Snooping is enabled.