Technical References

Controls how the DHCP server handles information about an
orphaned subnet; that is, whether it keeps the entry in its
database or deletes it. Default is false (disable).
As the DHCP server starts up, it tries to locate the
parent VPN and DHCP address block of each DHCP subnet. If a
subnet refers to a VPN that is no longer configured, or if
the server cannot locate a parent DHCP address block that
contains the subnet, the server uses this attribute
to decide.
dns-timeout int default = 60000, required
Controls the number of milliseconds that the DHCP server waits
for a response before retrying dynamic DNS requests.
docsis-version-id-missing string
Sets the string value (maximum 255 characters) to substitute
for the %@docsis-vers% variable in the policy command boot-
file attribute. No default.
DOCSIS devices must provide their version id
(for example, "docsis1.0") in the vendor-class-id option.
The server substitutes the DOCSIS version id as the
value of the boot-file option. If the vendor
class-id option is missing, or is not syntactically correct,
the server uses the docsis-version-id-missing attribute
for the boot-file option.
This substitution occurs if the DHCP request packet does not
contain a vendor-class-id option or the option does not contain
a DOCSIS version ID.
drop-old-packets int default = 4
Sets the time, in seconds, that a packet can age and still be
processed.
The server attempts to read as many packets as possible from
the UDP input queue, and then process them quickly. If the
server is very busy, it can sometimes become flooded with
packets. This could delay processing some packets.
In the DHCP protocol, however, some clients automatically
retry packets that have not been processed in a few seconds
--so allowing the server to process packets that are
older than a small number of seconds. This can increase
congestion without providing any real value for the clients.
The drop-old-packets parameter is the number of seconds that
a packet can age and still be processed by the DHCP server.
If a packet is more than the value of drop-old-packets old
when processed by the DHCP server, the server drops the packet.
drop-packet-on-extension-failure bool default = enabled
Causes the server to drop a packet (if possible) when it
encounters an extension failure. Default is true (enable).
enhanced-sample-counters bool default = enabled