failure-action

Syntax

Hierarchy Level

Release Information

Statement introduced in Junos OS Release 12.1.

Description

Configure the action the router (or switch) takes when a liveness detection failure occurs.

Options

Default: clear-binding

clear-binding—The DHCP client session is cleared when a liveness detection failure occurs, except when maintain-subscribers interface-delete setting is configured and active.

clear-binding-if-interface-up—The DHCP client session is cleared only when a liveness detection failure occurs and the local interface is detected as being up. Use this setting to distinguish failures from between a liveness detection failure due to a local network error, and a host disconnecting from the network. If the client binding is in the maintain-binding Finite State Machine (FSM) state when the liveness detection failure detection occurs, then the binding is not deleted. Not supported for Layer 2 ARP/ND liveness detection on MX Series routers.

log-only—A message is logged to indicate the event; no action is taken and DHCP is left to manage the failure and maintain the client binding. Not supported for Layer 2 ARP/ND liveness detection on MX Series routers.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.