Some of the most often used supported interface types are: Interface TypeInterface Text IdentifierATM over SONET/SDHAtEncryption ServicesEsFast EthernetFeGigabit EthernetGeLoopbacklo0Router internal interface for out-of-band managementfxp0Router interface for internal managementfxp1SerialSeServices for ES and AS PICsSpSONET/SDHSoT1t1The numbers following the interface type (such as ge-) refer to the chassis slot, processor, and port on which the interface is sending and receiving bits.The Local column in the output lists the interface addresses. Interface types and their abbreviationsAll of the interface types supported in Junos have a two-letter text identifier.