Technical References

Sets the maximum time-to-live in seconds for a client in
cache. The DHCP server discards the entries in memory after
this period.
client-class bool default = disabled
Controls how the DHCP server uses the client and client-class
configuration objects to affect request processing. Default is
false (disabled).
client-class-lookup-id expr
Specifies the expression used to determine a client-class solely
on data contained in an incoming DHCP client request.
The expression must return a string with the name of a currently
configured client-class, otherwise it must return the string
''. Any return that is not a string containing the name
of a currently configured client-class or '' is considered
an error.
cnr-5-0-upgraded date
Indicates whether the DHCP server was upgraded from 3.5 to 5.0.
Read-only.
collect-addr-util-duration rangetime(0-3d) default = 0
Sets the maximum period, in hours, that the DHCP server
maintains address utilization data.
To disable collecting address utilization data, unset
this attribute or give it a value of 0.
Use this attribute, with the collect-addr-util-interval
attribute, to determine the frequency that the server
uses to take snapshots of the data and to set the length of
time the DHCP server maintains the data. Together these attributes
have an impact on memory usage because each snapshot of data is
68 bytes.
For example, if you have 10 scopes and you set
collect-addr-util-duration is set to 24h and
collect-addr-util-interval to 1h, memory used by the DHCP
server to maintain address utilization data is 24 times 68 bytes
for each scope; that is, 10x24x68 or 16KB.
collect-addr-util-interval rangetime(5m-24h) default = 15m
Sets the frequency, in minutes or hours, that the DHCP
server uses to take snapshot views of address utilization data.
If collect-addr-util-duration is not configured, or set
to 0, the DHCP server ignores the collect-addr-util-interval.
Use this attribute, with the collect-addr-util-duration
attribute, to determine the frequency that the server uses to
take snapshots of the data and the length of time the DHCP server
maintains the data. Together these attributes affect memory
usage because each snapshot of data is 68 bytes.
For example, if you have 10 scopes and you set
collect-addr-util-duration to 24h and collect-addr-util-interval
to 1h, memory used by the DHCP erver to maintain address
utilization data is 24 times 68 bytesfor each scope; that is,
10x24x68 or 16KB.
collect-performance-statistics bool default = false