Technical References

Controls when the main server updates its database. Normally,
the main server updates its database when the backup server
ACKs it with what the backup knows. Disabling this capability
speeds up the main server, but after a restart the main server
is out of sync with what the backup knows, and may offer all
clients one lease period with a renew time of the current time
plus the MCLT.
poll-lease-hist-interval rangetime(0-1y)
Specifies how often to collect lease history from the DHCP
server for this cluster. If set to 0, no poll occurs.
poll-lease-hist-offset rangetime(0-24h)
Provides a fixed time of day for lease history polling.
This time is interpreted as a time of day offset, with 0 being
12 midnight, provided the polling interval is less than 24 hours,
and the offset value is less than the polling interval. If the
offset value is greater than the polling interval, or the
interval is greater than 24 hours, the offset will be ignored.
The scheduler for polling will ensure that the first polling
event occurs at the offset time. For example, if you set the
interval to 4 hours and the offset to 2am, the polling would
occur at 2am, 6am, 10am, 2pm, 6pm and 10pm.
poll-lease-hist-retry rangeint(0-4)
Specifies how often to retry if the server fails to poll
the data.
poll-lease-hist-server-first enumint(mainserver=0, backupserver=1) default = mainserver
Specifies which server to poll first:
0 main server
1 backup server
poll-subnet-util-interval rangetime(0-1y)
Specifies how often to collect the subnet utilization data
from DHCP server for this cluster. If set to 0, no poll
occurs.
poll-subnet-util-offset rangetime(0-24h)
Provides a fixed time of day for subnet utilization polling.
This time is interpreted as a time of day offset, with 0 being
12 midnight, provided the polling interval is less than 24 hours,
and the offset value is less than the polling interval. If the
offset value is greater than the polling interval, or the
interval is greater than 24 hours, the offset will be ignored.
The scheduler for polling will ensure that the first polling
event occurs at the offset time. For example, if you set the
interval to 4 hours and the offset to 2am, the polling would
occur at 2am, 6am, 10am, 2pm, 6pm and 10pm.
poll-subnet-util-retry rangeint(0-4)
Specifies how often to retry if the server fails to poll
the data.
poll-subnet-util-server-first enumint(mainserver=0, backupserver=1) default = mainserver