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show interfaces fti

Syntax

Description

Display status information about the specified FTIs.

Options

fti number

Display standard information about the specified FTIs.

brief | detail | extensive | terse

(Optional) Display the specified level of output.

descriptions

(Optional) Display interface description strings.

statistics

(Optional) Display FTI statistics.

Required Privilege Level

view

Output Fields

Table 1 lists the output fields for the show interfaces (Flexible Tunnel Interfaces) command. Output fields are listed in the approximate order in which they appear.

Table 1: FTI show interfaces Output Fields

Field Name

Field Description

Level of Output

Physical Interface

Physical interface

Name of the physical interface and state of the interface.

All levels

Enabled

State of the physical interface. Possible values are described in the “Enabled Field” section under Common Output Fields Description.

All levels

Interface index

Index number of the physical interface, which reflects its initialization sequence.

All levels

SNMP ifIndex

SNMP index number for the physical interface.

All levels

Generation

Unique number for use by Juniper Networks technical support only.

detail extensive

Link-level type

Encapsulation being used on the physical interface. Possible values: Flexible- tunnel-Interfaces

All levels

MTU

Maximum transmission unit size on the physical interface.

All levels

Clocking

Reference clock source of the interface.

All levels

Speed

Speed at which the interface is running.

All levels

Device flags

Information about the physical device. Possible values are described in the “Device Flags” section under Common Output Fields Description.

All levels

Interface flags

Information about the interface. Possible values are described in the “Interfaces Flags” section under Common Output Fields Description.

All levels

Link-type

Data transmission type.

All levels

Link-flags

Information about the link. Possible values are described in the “Link Flags” section under Common Output Fields Description.

All levels

Last flapped

Date, time, and how long ago the interface went from down to up or from up to down. The format is Last flapped: year-month-day hours:minutes:seconds timezone (hours:minutes:seconds ago). For example, Last flapped: 2002-04-26 10:52:40 PDT (04:33:20 ago).

All levels

Input packets

Number of packets received on the physical interface.

All levels

Output packets

Number of packets transmitted on the physical interface.

All levels

Physical-info

Information about the physical interface.

detail extensive

Hold-times

Current interface hold-time up and hold-time down. Value is in milliseconds.

detail extensive

Damping

Provides a smoothing of the up and down transitions (flapping) on an interface.

  • halflife— Decay half-life. The number of seconds after which the accumulated interface penalty counter is reduced by half if the interface remains stable.

  • max-suppress— Maximum hold-down time. The maximum number of seconds that an interface can be suppressed irrespective of how unstable the interface has been.

  • reuse— Reuse threshold. When the accumulated interface penalty counter falls below this number, the interface is no longer suppressed.

  • suppress— Cutoff (suppression) threshold. When the accumulated interface penalty counter exceeds this number, the interface is suppressed.

  • state— Interface damping state. If damping is enabled on an interface, it is suppressed during interface flaps that match the configured damping parameters.

detail extensive

Current address

Configured MAC address.

detail extensive

Hardware address

Hardware MAC address.

detail extensive

Alternate-link-address

Backup link address.

detail extensive

Statistics last cleared

Time when the statistics for the interface were last set to zero.

detail extensive, statistics

Traffic statistics

Number and rate of bytes and packets received and transmitted on the physical interface.

  • Input bytes—Number of bytes and rate, in bps, at which bytes are received on the interface.

  • Output bytes—Number of bytes and rate, in bps, at which bytes are transmitted on the interface.

  • Input packets—Number of packets and rate, in pps, at which packets are received on the interface.

  • Output packets—Number of packets and rate, in pps, at which packets are transmitted on the interface.

detail extensive

Input errors

Input errors on the interface:

  • Errors—Sum of incoming frame terminates and frame checksum (FCS) errors.

  • Drops—Number of packets dropped by the input queue of the I/O Manager ASIC. If the interface is saturated, this number increments once for every packet that is dropped by the ASIC's random early detection (RED) mechanism.

  • Framing errors—Number of packets received with an invalid FCS.

  • Runts—Number of frames received that are smaller than the runt threshold.

  • Giants—Number of frames received that are larger than the giant threshold.

  • Policed discards—Number of frames that the incoming packet match code discarded because they were not recognized or were not of interest. Usually, this field reports protocols that Junos OS does not handle.

  • Resource errors—Sum of transmit drops.

detail extensive

Output errors

Output errors on the interface. The following paragraphs explain the counters whose meaning might not be obvious:

  • Carrier transitions —Number of times the interface has gone from down to up. This number does not normally increment quickly, increasing only when the cable is unplugged, the far-end system is powered down and then up, or another problem occurs. If the number of carrier transitions increments quickly (perhaps once every 10 seconds), then the cable, the far-end system, or the PIC is malfunctioning.

  • Errors—Sum of the outgoing frame terminates and FCS errors.

  • Drops—Number of packets dropped by the output queue of the I/O Manager ASIC. If the interface is saturated, this number increments once for every packet that is dropped by the ASIC's RED mechanism.

  • MTU errors—Number of packets whose size exceeded the MTU of the interface.

  • Resource errors—Sum of transmit drops.

detail extensive

IPv6 transit statistics

Number of IPv6 transit bytes and packets received and transmitted on the physical interface if IPv6 statistics tracking is enabled.

  • Input bytes—Number of bytes received on the interface.

  • Output bytes—Number of bytes transmitted on the interface.

  • Input packets—Number of packets received on the interface.

  • Output packets—Number of packets transmitted on the interface.

detail extensive

Logical Interface

Logical interface

Name of the logical interface.

All levels

Index

Index number of the logical interface (which reflects its initialization sequence).

detail extensive none

SNMP ifIndex

SNMP interface index number of the logical interface.

detail extensive none

Generation

Unique number for use by Juniper Networks technical support only.

detail extensive

Flags

Information about the logical interface. Possible values are described in the “Logical Interface Flags Field” section under Common Output Fields Description.

All levels

Encapsulation

Encapsulation on the logical interface.

All levels

Destination UDP Port

Value to write to the destination-udp-port field.

All levels

VNI

Value to write to the vni attribute

All levels

Source address

IP address of the source side of the connection.

All levels

Transit Statistics

Statistics for traffic transiting the router.

  • Input bytes—Number of bytes received on the interface.

  • Output bytes—Number of bytes transmitted on the interface.

  • Input packets—Number of packets received on the interface.

  • Output packets—Number of packets transmitted on the interface.

detail extensive

Protocol inet, MTU

Protocol family configured on the logical interface. If the protocol is inet, the IP address of the interface is also displayed. MTU is the maximum transmission unit size on the logical interface

All levels

Max nh cache

Maximum interface neighbor discovery nexthop cache size.

All levels

New hold nh limit

Maximum number of new unresolved nexthops.

All levels

Curr nh cnts

Current number of resolved next-hop addresses.

All levels

Curr new hold cnt

Current number of unresolved next-hop addresses.

All levels

NH drop cnt

Number of neighbor discovery requests not serviced

All levels

Flags

Information about the logical interface. Possible values are described in the “Logical Interface Flags” section under Common Output Fields Description.

Route Table

Routing table in which the logical interface address is located. For example, 0 refers to the routing table inet.0.

detail extensive

Flags

Information about protocol family flags. Possible values are described in the “Family Flags Field” section under Common Output Fields Description.

All levels

Addresses, Flags

Information about address flags. Possible values are described in the “Addresses Flags” section under Common Output Fields Description.

All levels

Destination address

IP address of the remote side of the connection.

All levels

Local

IP address of the logical interface.

All levels

Broadcast

Broadcast address of the logical interface.

detail extensive none

Sample Output

show interfaces (Flexible Tunnel Interfaces on MX Series)

show interfaces detail (Flexible Tunnel Interfaces on MX Series)

show interfaces extensive (Flexible Tunnel Interfaces on MX Series)

show interfaces terse (Flexible Tunnel Interfaces on MX Series)

show interfaces statistics (Flexible Tunnel Interfaces on MX Series)

show interfaces (Flexible Tunnel Interfaces on PTX and QFX Series)

Release Information

Command introduced in Junos OS Release 18.3R1.