Describes the list maintained on every leaf switch for PIM/PIM6 operations including striping and other purposes.
An active border leaf switch list is a PIM/PIM6 maintained list that
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exists on every leaf switch for striping and other purposes
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is derived from active PIM/PIM6 neighbor relations on border leaf switches themselves, and
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is generated by PIM/PIM6 using monitored PIM/PIM6 Hello messages on the fabric interface for non-border leaf switches.
Implementation details
The source IP on the hello messages is the loopback IPv4/IPv6 assigned to each border leaf switch.