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GS728TS, GS728TPS, GS752TS, and GS752TPS Gigabit Smart Switches
Persistent Configuration
Use the DHCP Snooping Persistent Configuration page to configure the persistent location of
the DHCP snooping database. Bindings that are not written to the persistent file are lost
when the system reboots.
To access the DHCP Snooping Persistent Configuration page, click Systemï€
 Services 
DHCP Snooping
 Persistent Configuration.
To configure DHCP snooping persistent settings:
1. Specify where to store the persistent binding file:
• Local. The binding table will be stored locally in a file on the switch. Selecting this
option disables the Remote File Name and Remote IP Address fields.
• Remote. The binding table will be stored on the remote TFTP server.
2. If the database is stored in a remote location, specify the IP address of the TFTP server on
which the snooping database will be stored.
3. If the database is stored in a remote location, specify the name of the file on the TFTP
server that will store the bindings database entries. The name can contain up to 32
alphanumeric characters.
4. In the Write Delay field, specify how often to write entries from the local database into the
local or remote file. The default value is 300 seconds, and the range is 15 to 86400
seconds.
5. Click Apply to apply the change to the system. Configuration changes take effect
immediately.
6. Click Cancel to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
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