Ip Dhcp Snooping Delete-By-Linkdown - Allied Telesis x510-28GTX Command Reference Manual

DHCP S C
NOOPING OMMANDS
- -
IP DHCP SNOOPING DELETE BY LINKDOWN

ip dhcp snooping delete-by-linkdown

Overview Use this command to set the switch to remove a dynamic entry from the DHCP
snooping database when its port goes down. If the port is part of an aggregated
link, the entries in the database are only deleted if all the ports in the aggregated
link are down.
Use the no variant of this command to set the switch not to delete entries when
ports go down.
ip dhcp snooping delete-by-linkdown
Syntax
no ip dhcp snooping delete-by-linkdown
Default Disabled: by default DHCP Snooping bindings are not deleted when an interface
goes down.
Mode Global Configuration
Usage If this command is enabled in a stack, and the master goes down and is replaced
by a new master, entries in the DHCP snooping database for ports on the master
are removed, unless they are part of link aggregators that are still up.
Examples To set the switch to delete DHCP snooping lease entries from the DHCP snooping
database when links go down, use the commands:
awplus#
awplus(config)#
To set the switch not to delete DHCP snooping lease entries from the DHCP
snooping database when links go down, use the commands:
awplus#
awplus(config)#
Related show ip dhcp snooping
Commands
C613-50170-01 Rev B
configure terminal
ip dhcp snooping delete-by-linkdown
configure terminal
no ip dhcp snooping delete-by-linkdown
Command Reference for x510 Series
AlliedWare Plus™ Operating System - Version 5.4.7-1.x
2007