R2511-HP MSR Router Series Layer 3 - IP Services Command Reference(V5)

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Views
System view
Default command level
2: System level
Parameters
filename: File name. For information about how to define the file name, see Fundamentals Configuration
Guide.
Usage guidelines
If the specified file does not exist, the device automatically creates the file when it stores the first DHCP
snooping entry.
This command enables the device to store DHCP snooping entries in the specified file immediately. After
that, the device updates DHCP snooping entries at the interval set by the dhcp-snooping binding
database update interval command.
Examples
# Specify the file database.dhcp to store DHCP snooping entries.
<Sysname> system-view
[Sysname] dhcp-snooping binding database filename database.dhcp
Related commands
dhcp-snooping binding database update interval
dhcp-snooping binding database update interval
Use dhcp-snooping binding database update interval to set the interval at which the device updates
DHCP snooping entries.
Use undo dhcp-snooping binding database update interval to restore the default.
Syntax
dhcp-snooping binding database update interval minutes
undo dhcp-snooping binding database update interval
Default
The device does not update DHCP snooping entries periodically.
Views
System view
Default command level
2: System level
Parameters
minutes: Update interval in the range of 1 to 14400 minutes.
Usage guidelines
This command enables updating DHCP snooping entries at the specified interval.
• If a DHCP snooping entry is learned or removed during an interval, DHCP snooping adds or
removes this entry at the end of this interval.