Secondary in failover pair does not perform dynamic DNS updates

Bob Harold rharolde at
Tue Apr 4 19:16:35 UTC 2017

On Tue, Apr 4, 2017 at 2:29 PM, Matthew Kassawara <
matthew.kassawara at> wrote:

> Neither stopping the primary peer (resulting in a
> "communications_interrupted" state on the secondary peer) nor changing the
> primary peer state to "partner_down" via OMAPI cause the secondary peer to
> perform dynamic DNS updates.
> On Tue, Apr 4, 2017 at 12:22 PM, Simon Hobson <dhcp1 at>
> wrote:
>> Matthew Kassawara <matthew.kassawara at> wrote:
>> > If I simulate failure of the primary DHCPD instance
>> Are you doing that properly, and putting the peer into partner down state
>> ?
You need to do "partner_down" on the secondary (telling it the primary is
down).  It might get to that state after waiting the MCLT time (typically a
half hour ?) but I am not sure.  So "complete" failover is a manual process.

Bob Harold
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