R21xx-HP FlexFabric 11900 IP Multicast Configuration Guide

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Configuration prerequisites
Before you configure IPv6 PIM-SM, configure an IPv6 unicast routing protocol so that all devices in the
domain are interoperable at the network layer.
Enabling IPv6 PIM-SM
Enable IPv6 multicast routing before configuring IPv6 PIM.
With IPv6 PIM-SM enabled on interfaces, routers can establish IPv6 PIM neighbor relationship and
process IPv6 PIM messages from their IPv6 PIM neighbors. When you deploy an IPv6 PIM-SM domain,
HP recommends enabling IPv6 PIM-SM on all non-border interfaces.
IMPORTANT:
A
ll the interfaces on the same router must operate in the same IPv6 PIM mode.
To enable IPv6 PIM-SM:
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Enable IPv6 multicast routing.
ipv6 multicast routing-enable
By default, IPv6 multicast routing is
disabled.
3. Enter interface view.
interface interface-type
interface-number
N/A
4. Enable IPv6 PIM-SM.
ipv6 pim sm
By default, IPv6 PIM-SM is
disabled.
Configuring an RP
An RP can provide services for multiple IPv6 multicast groups. However, only one RP can forward IPv6
multicast traffic for an IPv6 multicast group at a moment.
An RP can be manually configured or dynamically elected through the BSR mechanism. For a
large-scaled IPv6 PIM network, configuring static RPs is a tedious job. Generally, static RPs are backups
for dynamic RPs to enhance the robustness and operational manageability on an IPv6 multicast network.
Configuring a static RP
If only one dynamic RP exists on a network, you can configure a static RP to avoid communication
interruption caused by single-point failures. It can also avoid waste of bandwidth due to frequent
message exchange between C-RPs and the BSR. The static RP configuration must be the same on all
routers in the IPv6 PIM-SM domain.
To configure a static RP: