Statement introduced in Junos OS Release 12.1.
(M320 routers with Channelized OC3/STM1 Circuit Emulation PIC with SFP only, EX Series switches, and MX series routers with Channelized OC3/STM1 Circuit Emulation PIC with SFP only using container interfaces) Reduce the Automatic Protection Switching (APS) switchover time in Layer 2 circuits.
The fast APS switching feature is supported only within a single chassis on a MX series router using a container interface.
Configuring this statement reduces the APS switchover time only when the Layer 2 circuit encapsulation type for the interface receiving traffic from a Layer 2 circuit neighbor is SAToP.
When the fast-aps-switch statement is configured in revertive APS mode, you must configure an appropriate value for revert time to achieve reduction in APS switchover time.
To prevent the logical interfaces in the data path from being shut down, configure appropriate hold-time values on all the interfaces in the data path that support TDM.
The fast-aps-switch statement cannot be configured when the APS annex-b option is configured.
The interfaces that have the fast-aps-switch statement configured cannot be used in virtual private LAN service (VPLS) environments.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.