Switching To An Spt For Pim Sparse Mode; Configuring Pim Sparse Mode Remote Neighbors - Juniper JUNOSE 11.0.X MULTICAST ROUTING Configuration Manual

JUNOSe 11.0.x Multicast Routing Configuration Guide

Switching to an SPT for PIM Sparse Mode

PIM sparse mode initiates multicast using a shared tree. You can configure PIM sparse
mode to switch to an SPT when a source starts sending multicast messages, or you
can prevent PIM sparse mode from switching to an SPT. Multicasting over an SPT
can be more efficient than multicasting over a shared tree (see "PIM Sparse Mode"
on page 82).
ipv6 pim spt-threshold

Configuring PIM Sparse Mode Remote Neighbors

You must use PIM sparse mode remote neighbors to run multicast services over
BGP/MPLS VPNs.
NOTE: Although you can configure PIM sparse mode remote neighbors, you can not
use these remote neighbors for BGP/MPLS VPNs.
To configure a pair of E Series routers to act as PIM remote neighbors:
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Switching to an SPT for PIM Sparse Mode

Use the interval keyword to specify an interval (from 1 to 65535 seconds) at
which the candidate RP sends advertisement messages to the BSR. The default
is 60 seconds.
Example
host1(config)#ipv6 access-list 1 permit 1001::1
host1(config)#ipv6 access-list 1 permit 1002::1
host1(config)#ipv6 pim rp-candidate loopback 1 group-list 1
Use the no version to stop the router from acting as an RP candidate.
See ipv6 pim rp-candidate.
Use to specify when PIM sparse mode switches from a shared tree to an SPT.
Specify a nonzero integer or the keyword infinity to prevent PIM sparse mode
from switching to an SPT.
Specify a value of 0 to configure PIM to switch to an SPT when a source starts
sending multicast messages.
Example
host1(config)#ipv6 pim spt-threshold 4
Use the no version to restore the default, 0.
See ipv6 pim spt-threshold.