Juniper NETWORK AND SECURITY MANAGER - NSM CONFIGURATION GUIDE FOR EX SERIES DEVICES REV 3 Configuration Manual page 79

Table 38: Configuring Multicast Fields (continued)
Option
Interface
Rpf Check Policy
Scope
Scope Policy
Ssm Groups
Copyright © 2010, Juniper Networks, Inc.
Function
Enables you to configure the interfaces
for multicast properties on which you
plan to manage the maximum
bandwidth.
Multicast reverse path forwarding (RPF)
checks are used to prevent multicast
routing loops. Routing loops are
particularly debilitating in multicast
applications because packets are
replicated with each pass around the
routing loop.
You can apply policies for disabling
reverse-path forwarding (RPF) checks
on arriving multicast packets.
Enables you to configure multicast
scoping to limit multicast traffic by
configuring it to an administratively
defined topological region. Multicast
scoping controls the propagation of
multicast messages—both multicast
group joins upstream toward a source
and data forwarding downstream.
Scoping can relieve stress on scarce
resources, such as bandwidth, and
improve privacy or scaling properties.
Enables you to configure multicast
scoping policy. A multicast scope policy
contains a set of device interfaces on
which you are configuring scoping and
the scope's address range configured as
a series of device filters.
Enables you to configure source- specific
multicast (SSM) groups. SSM is a service
model that identifies session traffic by
both source and group address. Using
SSM, a client can receive multicast
traffic directly from the source. To
deploy SSM successfully, you need an
end-to-end multicast-enabled network
and applications that use an Internet
Group Management Protocol version 3
(IGMPv3).
Chapter 7: Configuring Routing Options
Your Action
1. Expand the tree and select
Multicast
.
Interface
2. Configure the interface and the
bandwidth.
1. Expand the Multicast tree and select
.
Rpf Check Policy
2. Click the New button or select a
policy and click the Edit button.
3. Enter the RPF check policy name.
1. Expand the tree and select
Multicast
Scope .
2. Configure the scope and the interface
for the multicast.
1. Expand the tree and select
Multicast
.
Scope Policy
2. Specify the scope policy for the
multicast group.
1. Expand the tree and select
Multicast
.
Ssm Groups
2. Click the New button or select a
group and click the Edit button.
3. Specify the address range of the SSM
group.
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