BigIron RX Series Configuration Guide 595
53-1002253-01
Configuring a static multicast route
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Clearing IGMP statistics
To clear statistics for IGMP traffic, enter the following command.
BigIron RX# clear igmp traffic
Syntax: clear igmp traffic
This command clears all the multicast traffic information on all interfaces on the device.
IGMP V3 and source specific multicast protocols
When 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 the
RP.
Configuring a static multicast route
Static multicast routes allow you to control the network path used by multicast traffic. Static
multicast routes are especially useful when the unicast and multicast topologies of a network are
different. You can avoid the need to make the topologies similar by instead configuring static
multicast routes.
This feature is not supported for DVMRP.
You can configure more than one static multicast route. The device always uses the most specific
route that matches a multicast source address. Thus, if you want to configure a multicast static
route for a specific multicast source and also configure another multicast static route for all other
sources, 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 the
following.
PIMRouterA(config)# ip mroute 207.95.10.0 255.255.255.0 interface ethernet 2/3
distance 1
PIMRouterA(config)# ip mroute 0.0.0.0 0.0.0.0 interface ethernet 2/3 distance 1
PIMRouterA(config)# write memory
Leave Number of IGMP V2 “leave” messages on the interface. (See ToEx for IGMP
V3.)
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 on
the interface.
BLK Number of times that sources were removed from an interface.
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