Cisco WS-C6506 - Storing DHCP-Snooping Binding Entries to a Flash Device

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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 33 Configuring DHCP Snooping and IP Source Guard
Storing DHCP-Snooping Binding Entries to a Flash Device
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Console> (enable)
Storing DHCP-Snooping Binding Entries to a Flash Device
The DHCP-snooping binding entries can be stored to a flash device so the bindings can be restored
immediately after the switch is reset.
The auto-save interval option is for configuring the auto-save interval for DHCP-snooping bindings.
Valid ranges for the interval are 1 through 35000 minutes. Specifying a 0 disables the periodic saving of
bindings on the flash device and deletes the bindings file stored in flash. Specifying a 0 does not clear a
user-specified filename. The user-specified filename is cleared and returned to the default filename after
the clear config all command is entered.
The device:filename option is for specifying the flash device and filename for storing the bindings. By
default, the flash device is bootflash and the default filename is dhcp-snooping-bindings-database. If you
have not configured a filename, the bindings are automatically saved with the default filename on the
flash device.
To enable the auto-save option for DHCP-snooping binding entries and specify the interval to periodically
save the bindings, perform this task in privileged mode:
This example shows how to enable the auto-save option for DHCP-snooping binding entries and specify
an interval of 600 minutes to periodically save the bindings:
Console> (enable) set dhcp-snooping bindings-database auto-save 600
DHCP Snooping auto-save interval set to 600 minutes.
Console> (enable)
To specify the flash device and filename for storing the bindings, perform this task in privileged mode:
This example shows how to specify the flash device and filename for storing the bindings:
Console> (enable) set dhcp-snooping bindings-database disk1:dhcp-bindings
Task Command
Enable the auto-save option for
DHCP-snooping binding entries and specify
the interval to periodically save the bindings.
set dhcp-snooping bindings-database auto-save interval
Task Command
Specify the flash device and filename for
storing the bindings.
set dhcp-snooping bindings-database device:[filename]