BigIron RX Series Configuration Guide 107553-1002253-01Displaying IP multicast information 41To disable the feature, enter the following command.BigIron RX(config)# no ip pimsm-snoopingIf you also want to disable IP multicast traffic reduction, enter the following command.BigIron RX(config)# no ip multicastMulticast traffic reduction per VLANYou can configure specified VLANs instances for multicast traffic reduction by these methods asdescribed in the following sections.Configuring the PIM SM traffic snooping per VLANIn the following example, multicast traffic reduction is applied using PIM SM Traffic snooping toVLAN 2.BigIron RX(config)# vlan 2BigIron RX(config-vlan-2)# multicast pimsm-snoopingSyntax: [no] multicast pimsm-snoopingConfiguring PIM proxy per VLAN instanceUsing the PIM proxy function, multicast traffic can be reduced by configuring a device to issue PIMjoin and prune messages on behalf of hosts that the configured router discovers through standardPIM interfaces. The router is then able to act as a proxy for the discovered hosts and perform PIMtasks upstream of the discovered hosts. Where there are multiple PIM downstream routers, thisremoves the need to send multiple messages.To configure a device switch to function as a PIM proxy on VLAN 2, use the following commands.BigIron RX(config)# vlan 2BigIron RX(config-vlan-2)# multicast pim-proxy-enableSyntax: [no] multicast pim-proxy-enableDisplaying IP multicast informationThe following sections show how to display and clear IP multicast reduction information.Displaying multicast informationTo display IP multicast traffic reduction information on the device, enter the following command atany level of the CLI.
