Alcatel-Lucent 6850-48 参照ガイド

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DHCP Relay Commands
page 36-44
OmniSwitch CLI Reference Guide
September 2009
ip helper dhcp-snooping binding persistency 
Retains the entries in the DHCP Snooping binding table for the duration of the lease regardless of the 
existence of the MAC address in the MAC address table. 
ip helper dhcp-snooping binding persistency {enable | disable}
Syntax Definitions
enable
Enables DHCP Snooping binding persistency.
disable
Disables DHCP Snooping binding persistency.
Defaults
By default, DHCP Snooping binding persistency is disabled.
Platforms Supported
OmniSwitch 6400, 6850, 6855, 9000, 9000E
Usage Guidelines
• With this option disabled, the entry will be removed if the MAC address is missing from the MAC 
address table when the database is synchronized.
• Use the 
 command to display the current status.
Examples
-> ip helper dhcp-snooping binding persistency enable
-> ip helper dhcp-snooping binding persistency disable
Release History
Release 6.3.3; command was introduced.
Related Commands
Enables or disables the DHCP Snooping binding table functionality.
Configures the amount of time between each automatic save of the bind-
ing table contents to a file on the switch.