Alaxala AX2200S Series Configuration Manual page 438

23 DHCP Snooping
(2) Saving when the wait-to-write time expires
The timer for the wait-to-write time is triggered by one of the following save events. The
binding database is saved to the specified location when the timer expires.

A dynamic binding database is registered, updated, or deleted.

When the
(includes a change of save location)

When the
Use the ip dhcp snooping database write-delay
wait-to-write time.
Once the timer for the wait-to-write time is triggered by one of the above save events, it
does not stop until it expires. Even if the binding database is registered, updated, or deleted
while the timer is operating, the timer does not restart.
Figure 23-10 Overview of the operation related to save events and the wait-to-write time
(3) Saving by a certain operation
If either of the operations below, which prompt the restart of the Switch, is performed, the
binding database at that moment is saved to the save location specified in the
configuration.
If the save location is not specified in the configuration, the binding database is not saved
even if the following operations are performed.
Table 23-5 Saving by specific operation
Operation
reload
ppupdate
backup
416
ip dhcp snooping database url
clear ip dhcp snooping binding
(example when triggered by binding database registration)
Save location
Save location specified in the
configuration
configuration command is specified
operation command is executed
configuration command to set the
Activation triggers
An operation command is
input from an operation
terminal.
An operation command is
input from an operation
terminal.
An operation command is
input from an operation