Table 145: T1 or E1 show interfaces Output Fields
Level of OutputField DescriptionField Name
Physical Interface
All levelsName of the physical interface.Physical interface
All levelsState of the interface. Possible values are described in the “Enabled Field”
section under Common Output Fields Description.
Enabled
detail extensive nonePhysical interface's index number, which reflects its initialization sequence.Interface index
detail extensive noneSNMP index number for the physical interface.SNMP ifIndex
detail extensiveUnique number for use by Juniper Networks technical support only.Generation
All levelsEncapsulation being used on the physical interface.Link-level type
All levelsMTU size on the physical interface.MTU
All levelsReference clock source: Internal or External.Clocking
All levelsSpeed at which the interface is running.Speed
All levelsWhether loopback is enabled and the type of loopback (local or remote).Loopback
All levelsFrame check sequence on the interface (either 16 or 32). The default is 16 bits.FCS
All levelsPhysical layer framing format used for the E1 interface on the link: G704,
G704-NO-CRC4, or Unframed. The default is G704.
Physical layer framing format used for the T1 interface on the link: SF and ESF.
The default is ESF.
Framing
All levelsInformation about the physical device. Possible values are described in the
“Device Flags” section under Common Output Fields Description.
Device flags
All levelsInformation about the interface. Possible values are described in the “Interface
Flags” section under Common Output Fields Description.
Interface flags
All levelsInformation about the link. Possible values are described in the “Link Flags”
section under Common Output Fields Description.
Link flags
detail extensiveCurrent interface hold-time up and hold-time down, in milliseconds.Hold-times
2507Copyright © 2017, Juniper Networks, Inc.
Chapter 42: Operational Commands
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