Brocade FastIron Ethernet Switch IP Multicast Configuration Guide - Manual (Page 171)

If you explicitly specify the RP, the device uses the specified RP for all group-to-RP mappings and
overrides the set of candidate RPs supplied by the BSR.
NOTE
Specify the same IP address as the RP on all IPv6 PIM Sparse routers within the IPv6 PIM Sparse
domain. Make sure the device is on the backbone or is otherwise well-connected to the rest of the
network.
To specify the IPv6 address of the RP, enter commands such as the following.
device(config)# ipv6 router pim
device(config-ipv6-pim-router)# rp-address 31::207
The command in the previous example identifies the router interface at IPv6 address 31:207 as the RP
for the IPv6 PIM Sparse domain. The device will use the specified RP and ignore group-to-RP
mappings received from the BSR.
To specify the IPv6 address of the RP for a specified VRF, enter commands such as the following.
device(config)# ipv6 router pim vrf blue
device(config-ipv6-pim-router-vrf-blue)# rp-address 31::207
Syntax: [no] rp-address ipv6-addr
The ipv6-addr parameter specifies the IPv6 address of the RP.
Updating IPv6 PIM Sparse forwarding entries with a new RP configuration
If you make changes to your static RP configuration, the entries in the IPv6 PIM Sparse multicast
forwarding table continue to use the old RP configuration until they are aged out.
The clear IPv6 pim rp-map command allows you to update the entries in the static multicast forwarding
table immediately after making RP configuration changes. This command is meant to be used with the
rp-address command.
To update the entries in an IPv6 PIM Sparse static multicast forwarding table with a new RP
configuration, enter the following command at the privileged EXEC level of the CLI.
device(config)# clear ipv6 pim rp-map
Syntax: clear ipv6 pim [ vrf vrf_name ] rp-map
Embedded Rendezvous Point
Global deployment of IPv4 multicast relies on Multicast Source Discovery Protocol (MSDP) to convey
information about the active sources. Because IPv6 provides more address space, the RP address can
be included in the multicast group address.
NOTE
The IPv6 group address must be part of the FF70:/12 prefix.
Embedded RP support is enabled by default. You can disable it using the following commands.
device(config)# ipv6 router pim
device(config-ipv6-pim-router)# no rp-embedded
Updating IPv6 PIM Sparse forwarding entries with a new RP configuration
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