Clearing igmp statistics, Igmp v3 and source specific multicast protocols, Configuring a static multicast route – Brocade BigIron RX Series Configuration Guide User Manual

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BigIron RX Series Configuration Guide

53-1002484-04

Configuring a static multicast route

24

Clearing IGMP statistics

To clear statistics for IGMP traffic, enter the following command.

BigIron RX# clear ip igmp traffic

Syntax: clear ip 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.

NOTE

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 108

), 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

Syntax: ip mroute <ip-addr> interface ethernet <slot>/<portnum> | ve <num> [distance <num>]

Or

Syntax: ip mroute <ip-addr> rpf_address <rpf-num>

The <ip-addr> command specifies the PIM source for the route.

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.

This field

Displays

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