Statement introduced before Junos OS Release 7.4.
For interfaces with PPP encapsulation, configure compression of the Data Link Layer address and control fields. The acfc option is not supported with frame-relay-ppp encapsulation.
On M320, M120, and T Series routers, address and control field compression (ACFC) is not supported for any ISO family protocols. Do not include the acfc statement at the [edit interfaces interface-name ppp-options compression] hierarchy level when you include the family iso statement at the [edit interfaces interface-name unit logical-unit-number] hierarchy level.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.