77
Default level
2: System level
Parameters
filename: Specifies the file name. For how to define the file name, see the Fundamentals Configuration
Guide.
Description
Use the dhcp-snooping binding database filename command to specify the name of the file for storing
DHCP snooping entries.
Use the undo dhcp-snooping binding database filename to restore the default.
By default, no file name is specified.
If no file with the specified name is found, the device will automatically create the file upon storing a
DHCP snooping binding.
DHCP snooping entries are stored immediately after this command is used, and then updated at the
interval set by the dhcp-snooping binding database update interval command.
Related commands: dhcp-snooping binding database update interval.
Examples
# Specify the name of the file for storing DHCP snooping entries as database.dhcp.
<Sysname> system-view
[Sysname] dhcp-snooping binding database filename database.dhcp
dhcp-snooping binding database update interval
Syntax
dhcp-snooping binding database update interval minutes
undo dhcp-snooping binding database update interval
View
System view
Default level
2: System level
Parameters
minutes: Specifies the refresh interval in minutes, in the range 1 to 14,400.
Description
Use the dhcp-snooping binding database update interval command to set the interval at which the DHCP
snooping entry file is refreshed.
Use the undo dhcp-snooping binding database update interval command to restore the default.
By default, the DHCP snooping entry file is not refreshed periodically.
With this command configured, DHCP snooping will check bindings periodically. If a binding is added
or removed during an interval, DHCP snooping will add or remove this binding to or from the file at the
end of this interval; if no change occurs within the interval, DHCP snooping will not refresh the file.
This command takes effect only when the DHCP snooping entry file is specified.
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