I want to config bidir pim. I had saw the sample config doc and the doc need not to config the interface as sparse-dense-mode just config the rp address as bidir. But when I practice it, It did not work until I setup the interfaces to sparse-dense-mode. Does any body have experience about it? Thank You!
The Cisco IOS software learns the mode and RP addresses of multicast groups via the following three mechanisms: static configuration, Auto-RP, and bootstrap router (BSR). Use the ip pim rp-address command to statically define the mode of operations and RP address for multicast groups that are to operate in sparse mode or bidirectional mode. By default, groups will operate in dense mode. No commands explicitly define groups to operate in dense mode.
Group mode and RP address mappings learned through Auto-RP and BSR take precedence over mappings statistically defined by the ip pim rp-address command without the override keyword. Commands with the override keyword take precedence over dynamically learned mappings.
If you are using Auto-RP to distribute group-to-RP mappings, use the bidir keyword with the ip pim send-rp-announce command.
If you are using the PIM Version 2 bootstrap mechanism to distribute group-to-RP mappings, use the bidir keyword with the ip pim rp-candidate command.
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