Alcatel-Lucent OmniSwitch 6250, Cli Reference Manual, Page: 1315 / 2018

DHCP Relay Commands
OmniSwitch 6250 CLI Reference Guide November 2009 page 32-39
ip helper dhcp-snooping binding action
Triggers a purge or renew action against the DHCP Snooping binding table. A purge action clears the
contents of the table. A renew action populates the table with entries saved in the
dhcpBinding.db file.
ip helper dhcp-snooping port binding action {purge | renew}
Syntax Definitions
purge Clears all binding table entries that are maintained in switch memory.
renew Populates the binding table with entries saved in the dhcpBinding.db
file located in the /flash/switch directory on the switch.
Defaults
By default, the timeout value is set to 300 seconds.
Platforms Supported
OmniSwitch 6250
Usage Guidelines
The DHCP Snooping binding table is maintained in the switch memory. Binding table entries are saved on
a periodic basis to the
dhcpBinding.db file on the switch. Use the purge and renew options available
with this command to sync the binding table contents with the contents of the dhcpBinding.db file.
Examples
-> ip helper dhcp-snooping binding action purge
-> ip helper dhcp-snooping binding action renew
Release History
Release 6.6.1; command was introduced.
Related Commands
MIB Objects
iphelperDhcpSnoopingBindingDatabaseAction
ip helper dhcp-snooping
binding .Enables or disables the DHCP Snooping binding table functionality.
ip helper dhcp-snooping
binding timeout Configures the amount of time between each automatic save of the bind-
ing table contents to a file on the switch.