Enable/Disable the Bay Networks Hello Neighbor Option
in Hello packets to include a generation identifier.
Default is enabled.
By enabling this neighbor option, Bay Networks PIM
router can quickly learn whether its neighbor was
just rebooted and came back up within the Hello Holdtime.
This can be detected if the neighbor's GenId received
is different from the previous one. The rebooted
neighbor will be updated with the most recent RP-Set
information immediately and thus the network can converge
even faster in terms of Bootstrap, RP-Set consistence
and Join/Prune.
When interoperating with other vendors' PIM routers,
this option should be disabled.