Juniper JUNOSE 11.1.X MULTICAST ROUTING, Руководство по настройке

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Enabling IP Multicast
In this implementation, IP multicast works on virtual routers (VRs). By default, IP
multicast is disabled on a VR. To enable IP multicast on a VR, access the context for
a VR, and then issue the
ip multicast-routing command.
ip multicast-routing
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Use to enable IP multicast routing on the VR.
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By default, IP multicast is disabled on the VR. In the disabled state, all multicast
protocols are disabled, and the VR forwards no multicast packets.
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Example
host1(config)# ip multicast-routing
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Use the no version to disable IP multicast routing on the VR (the default).
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See ip multicast-routing.
Defining Static Routes for Reverse-Path Forwarding
Use the ip rpf-route command to define reverse-path forwarding (RPF) to verify that
a router receives a multicast packet on the correct incoming interface.
ip rpf-route
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Use to customize static routes that the router may use for RPF.
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Specify the IP address and subnet mask of the destination network.
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Specify either a next-hop IP address or an interface type and specifier, such as
atm 3/0. For details about interface types and specifiers, see Interface Types and
Specifiers in
JUNOSe Command Reference Guide .
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Optionally, specify the distance (number of hops) to the next-hop address.
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Optionally, specify a route's tag number to identify a particular route in the
routing table.
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Example
host1(config)# ip rpf-route 11.1.0.0 255.255.0.0 atm4/1.1 56 tag 25093
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Use the no version to remove the static route.
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See ip rpf-route.
Displaying Available Routes for Reverse-Path Forwarding
Use the show ip rpf-route command to display all available routes, only the routes
to a particular destination, or routes associated with a specific unicast protocol that
the router can use for Reverse-Path Forwarding (RPF).
Enabling IP Multicast
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Chapter 1: Configuring IPv4 Multicast