Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual page 675

NOTE: You can use the atm slot/port/vpi/vci format as an alternative to the
atm slot/port.subinterface format with the specific show interface and show
subinterface commands to monitor all ATM 1483 subinterfaces (except NBMA
interfaces) as well as the upper-layer interfaces configured over an ATM 1483
subinterface. You cannot, however, use the atm slot/port/vpi/vci format to create or
modify an ATM 1483 subinterface.
These guidelines also apply to E120 and E320 routers when you use the
atm slot/adapter/port/vpi/vci format as an alternative to the
atm slot/adapter/port.subinterface format.
For more information, see "Creating a Basic Configuration" on page 22 in
"Configuring ATM" on page 3.
Field descriptions
Interface Interface identifier
ATM-Prot One of the following ATM protocol types:
RFC-1483 Multiprotocol encapsulation over AAL5
NBMA Nonbroadcast multiaccess interface
ATM/MPLS Local ATM passthrough interface
VCD Virtual circuit descriptor
VPI Virtual path identifier
VCI Virtual circuit (or channel) identifier
Circuit Type Type of circuit: PVC
Encap Administered encapsulation method based on what was configured
with the atm pvc command
MTU Maximum transmission unit size for the interface
Status One of the following ATM 1483 subinterface states:
absent Represents the notPresent state and indicates that, although
the SRP detects the ATM 1483 subinterface, the module on which the
subinterface resides has not completed booting up, has failed, or is
disabled.
dormant Indicates that the ATM 1483 subinterface is performing
autodetection of one or more upper-layer encapsulation types and is
waiting to receive a packet of that type on a lower-layer interface. An
ATM 1483 subinterface transitions from the dormant state to the up
state when the router receives a valid packet of the specified
encapsulation type on the interface.
dormantLockout Indicates that a dormant ATM 1483 subinterface has
one or more upper-layer encapsulation types currently undergoing
encapsulation type lockout. An ATM 1483 subinterface transitions from
Chapter 16: Configuring Dynamic Interfaces Using Bulk Configuration
Monitoring Dynamic Interfaces and Profiles
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