Configuring Ipv6 Pim-Ssm; Ipv6 Pim-Ssm Configuration Task List - HP FlexFabric 5950 series Configuration Manual

If the IPv6 BIDIR-PIM domain contains a device that does not support this feature, you must disable
BSM semantic fragmentation on all C-BSRs. If you do not disable this feature, such a device regards
a BSMF as an entire BSM and updates the RP-set information each time it receives a BSMF. It
learns only part of the RP-set information, which further affects the RP election.
To disable BSM semantic fragmentation:
Step
1. Enter system view.
2. Enter IPv6 PIM view.
3. Disable BSM semantic
fragmentation.
NOTE:
Generally, a BSR performs BSM semantic fragmentation according to the MTU of its BSR interface.
For BSMs originated due to learning of a new IPv6 PIM neighbor, semantic fragmentation is
performed according to the MTU of the interface that sends the BSMs.
Disabling the device from forwarding BSMs out of their incoming interfaces
By default, the device forwards BSMs out of their incoming interfaces to avoid the situation that some
devices cannot receive the BSMs because of inconsistent routing information. This results in
duplicated traffic. If the devices have consistent routing information, you can disable the device to
forward BSMs out of their incoming interfaces to reduce the duplicated traffic.
To disable the device from forwarding BSMs out of their incoming interfaces:
Step
1. Enter system view.
2. Enter IPv6 PIM view.
3. Disable the device from
forward BSMs out of their
incoming interfaces.

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

Tasks at a glance
(Required.)
(Optional.) Configuring the IPv6 SSM group range
(Optional.) Configuring common IPv6 PIM features
Command
system-view
ipv6 pim
[ vpn-instance vpn-instance-name ]
undo bsm-fragment enable
Command
system-view
ipv6 pim
[ vpn-instance vpn-instance-name ]
undo bsm-reflection enable
Enabling IPv6 PIM-SM
405
Remarks
N/A
N/A
By default, BSM semantic
fragmentation is enabled.
Remarks
N/A
N/A
By default, the device forwards
BSMs out of their incoming
interfaces.