Brocade Multi-Service IronWare Multicast Configuration Guide (Supporting R05.6.00) - Manual (Page 212)

200 Multi-Service IronWare Multicast Configuration Guide
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IPv6 Multicast Listener Discovery snooping
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Configuring the PIM-SM traffic snooping per VLAN
In the following example, multicast traffic reduction is applied using PIM-SM traffic snooping to
VLAN 2.
Brocade(config)# vlan 2
Brocade(config-vlan-2)# multicast6 active
Brocade(config-vlan-2)# multicast6 pimsm-snooping
Syntax: [no] multicast6 pimsm-snooping
The no form of this command disables PIM SM traffic snooping on a per-VLAN basis.
Configuring PIM proxy per VLAN
Using the PIM proxy function, multicast traffic can be reduced by configuring a device to issue PIM
join and prune messages on behalf of hosts that the configured router discovers through standard
PIM interfaces. The router is then able to act as a proxy for the discovered hosts and perform PIM
tasks upstream of the discovered hosts. Where there are multiple PIM downstream routers, this
removes the need to send multiple messages.
When configuring PIM proxy on a VLAN, you must first configure PIM-SM traffic snooping. To
configure a device to function as a PIM proxy on VLAN 2, use the following commands.
Brocade(config)# vlan 2
Brocade(config-vlan-2)# multicast6 active
Brocade(config-vlan-2)# multicast6 pimsm-snooping
Brocade(config-vlan-2)# multicast6 pim-proxy-enable
Syntax: [no] multicast6 pim-proxy-enable
The no form of this command disables PIM proxy on a per-VLAN basis.
Configuring an IPv6 multicast static group uplink per VLAN
When the multicast6 static-group uplink command is enabled on a snooping VLAN, the snooping
device behaves like an MLD host on ports connected to the multicast router. The snooping device
will respond to MLD queries from the uplink multicast PIM router for the groups and sources
configured. Upon the multicast router receiving the MLD join message, it will initiate the PIM join on
its upstream path towards the source to pull the source traffic down. The source traffic will stop at
the MLD snooping device. The traffic will then be forwarded to the multicast receiver and router
ports or dropped in hardware if no other multicast receiver and routers are present in the VLAN.
The multicast6 static-group uplink command can be configured under the VLAN configuration only.
The multicast6 static-group uplink command must be used with the multicast6 static-group
command in order to connect a remote multicast source with the snooping VLAN where the static
group is configured.
When using MLDv2, you can use the multicast6 static-group include or multicast6 static-group
exclude command to statically include or exclude multicast traffic, respectively for hosts that
cannot signal group membership dynamically.
To configure the snooping device to statically join a multicast group on the uplink interface, enter
the following commands.
Brocade(config)# vlan 10
Brocade(config-vlan-10)# multicast6 static-group active
Brocade(config-vlan-10)# multicast6 static-group ff2e::1 uplink