HP MSR2000/3000/4000 Router Series IP Multicast Configuration Guide

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Configuring switchover to SPT
CAUTION:
If the router is an RP, disablin
g
switchover to SPT mi
g
ht cause multicast traffic forwardin
g
failures on the
source-side DR. When disabling switchover to SPT, be sure you fully understand its impact on your
network.
Both the receiver-side DR and RP can monitor the traffic rate of passing-by IPv6 multicast packets and thus
trigger a switchover from RPT to SPT.
To configure switchover to SPT:
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Enter IPv6 PIM view.
ipv6 pim [ vpn-instance
vpn-instance-name ]
N/A
3. Configure the criteria for
triggering a switchover to SPT.
spt-switch-threshold { traffic-rate |
immediacy | infinity }
[ group-policy acl6-number ]
By default, the device immediately
triggers a switchover to SPT after
receiving the first multicast packet.
Configuring IPv6 PIM-SSM
IPv6 PIM-SSM requires MLDv2 support. Enable MLDv2 on IPv6 PIM routers that connect to multicast
receivers.
IPv6 PIM-SSM configuration task list
Task Remarks
Enabling IPv6 PIM-SM Required.
Configuring the IPv6 SSM group range Optional.
Configuring common IPv6 PIM features Optional.
Configuration prerequisites
Before you configure IPv6 PIM-SSM, configure an IPv6 unicast IPv6 routing protocol so that all devices in
the domain are interoperable at the network layer.
Enabling IPv6 PIM-SM
The implementation of the IPv6 SSM model is based on subsets of IPv6 PIM-SM. Therefore, you must
enable IPv6 PIM-SM before configuring IPv6 PIM-SSM.
When you deploy an IPv6 PIM-SSM domain, enable IPv6 PIM-SM on non-border interfaces of the
routers.