Consolidated Platform Configuration Guide, Cisco Ios Release 15.2(4)E (Catalyst 2960-X Switches - Cisco Catalyst 2960 series Configuration Manual

Configuring DHCP Server Port-Based Address Allocation
DETAILED STEPS
Command or Action
Step 1
enable
Example:
Switch> enable
Step 2
configure terminal
Example:
Switch# configure terminal
Step 3 ip dhcp snooping database {flash[number]:/filename
| ftp://user:password@host/filename |
http://[[username:password]@]{hostname |
host-ip}[/directory] /image-name.tar |
rcp://user@host/filename}| tftp://host/filename
Example:
Switch(config)# ip dhcp snooping database
tftp://10.90.90.90/snooping-rp2
Step 4 ip dhcp snooping database timeout seconds
Example:
Switch(config)# ip dhcp snooping database
timeout 300
Step 5 ip dhcp snooping database write-delay seconds
Example:
Switch(config)# ip dhcp snooping database
write-delay 15
Step 6 end
Example:
Switch(config)# end

Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)

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Purpose
Enables privileged EXEC mode. Enter your password if
prompted.
Enters the global configuration mode.
Specifies the URL for the database agent or the binding file by
using one of these forms:
• flash[number]:/filename
(Optional) Use the number parameter to specify the stack
member number of the stack master. The range for number
is 1 to 9.
• ftp://user:password@host/filename
• http://[[username:password]@]{hostname |
host-ip}[/directory] /image-name.tar
• rcp://user@host/filename
• tftp://host/filename
Specifies (in seconds) how long to wait for the database transfer
process to finish before stopping the process.
The default is 300 seconds. The range is 0 to 86400. Use 0 to
define an infinite duration, which means to continue trying the
transfer indefinitely.
Specifies the duration for which the transfer should be delayed
after the binding database changes. The range is from 15 to
86400 seconds. The default is 300 seconds (5 minutes).
Returns to privileged EXEC mode.