BigIron RX Series Configuration Guide 59553-1002253-01Configuring a static multicast route 23Clearing IGMP statisticsTo clear statistics for IGMP traffic, enter the following command.BigIron RX# clear igmp trafficSyntax: clear igmp trafficThis command clears all the multicast traffic information on all interfaces on the device.IGMP V3 and source specific multicast protocolsWhen IGMP V3 and PIM Sparse (PIM-SM) is enabled, the source specific multicast service (SSM)becomes available. SSM simplifies PIM-SM by eliminating the RP and all protocols related to theRP.Configuring a static multicast routeStatic multicast routes allow you to control the network path used by multicast traffic. Staticmulticast routes are especially useful when the unicast and multicast topologies of a network aredifferent. You can avoid the need to make the topologies similar by instead configuring staticmulticast routes.NOTEThis feature is not supported for DVMRP.You can configure more than one static multicast route. The device always uses the most specificroute that matches a multicast source address. Thus, if you want to configure a multicast staticroute for a specific multicast source and also configure another multicast static route for all othersources, you can configure two static routes as shown in the examples below.To add static routes to multicast router A (refer to Figure 98), enter commands such as thefollowing.PIMRouterA(config)# ip mroute 207.95.10.0 255.255.255.0 interface ethernet 2/3distance 1PIMRouterA(config)# ip mroute 0.0.0.0 0.0.0.0 interface ethernet 2/3 distance 1PIMRouterA(config)# write memoryLeave Number of IGMP V2 “leave” messages on the interface. (See ToEx for IGMPV3.)IsIN Number of source addresses that were included in the traffic.IsEX Number of source addresses that were excluded in the traffic.ToIN Number of times the interface mode changed from exclude to include.ToEX Number of times the interface mode changed from include to exclude.ALLOW Number of times that additional source addresses were allowed or denied onthe interface.BLK Number of times that sources were removed from an interface.This field Displays
