Pim On Aggregated Interfaces; Enabling Pim Sparse Mode - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide
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PIM on Aggregated Interfaces

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Enabling PIM Sparse Mode

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Interface: pd-6/0/0.32768
Address: 0.0.0.0, IPv4, PIM v2, Mode: Sparse
Hello Option Holdtime: 255 seconds
Hello Option DR Priority: 0
Hello Option LAN Prune Delay: delay 500 ms override 2000 ms
Join Suppression supported
show pim neighbors
You can configure several Protocol Independent Multicast (PIM) features on an interface
regardless of its PIM mode (bidirectional, sparse, dense, or sparse-dense mode).
NOTE: ACX Series routers supports only sparse mode. Dense mode on ACX
series is supported only for control multicast groups for auto-discovery of
rendezvous point (auto-RP).
If you configure PIM on an aggregated (
aggregate is included in the multicast output interface list and carries the single stream
of replicated packets in a load-sharing fashion. The multicast aggregate interface is
"expanded" into its constituent interfaces in the next-hop database.
Junos OS Network Interfaces Library for Routing Devices
In PIM sparse mode (PIM-SM), the assumption is that very few of the possible receivers
want packets from a source, so the network establishes and sends packets only on
branches that have at least one leaf indicating (by message) a desire for the traffic.
WANs are appropriate networks for sparse-mode operation.
Starting in Junos OS Release 16.1, PIM is disabled by default. When you enable PIM, it
operates in sparse mode by default. You do not need to configure Internet Group
Management Protocol (IGMP) version 2 for a sparse mode configuration. After you enable
PIM, by default, IGMP version 2 is also enabled.
Junos OS uses PIM version 2 for both rendezvous point (RP) mode (at the
pim rp static address address]
pim interface interface-name]
All systems on a subnet must run the same version of PIM.
ae- or as- ) interface, each of the interfaces in the
hierarchy level) and interface mode (at the
hierarchy level).
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