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show interfaces (Abstracted Fabric)

 

Syntax

Release Information

Command introduced before Junos OS Release 17.4R1.

Description

Display status information for the specified Abstracted Fabric (af) interface.

Note

Starting in Junos OS Release 18.3R1, the show interfaces af-interface-name output provides transmit statistics of each Packet Forwarding Engine peer list on a given af interface, in addition to the physical interface statistics.

Options

brief | detail | extensive | terse(Optional) Display the specified level of output.
descriptions(Optional) Display interface description strings.
media(Optional) Display media-specific information about network interfaces.
snmp-index snmp-index(Optional) Display information for the specified SNMP index of the interface.
statistics(Optional) Display static interface statistics.

Required Privilege Level

view

List of Sample Output

show interfaces af-interface-name

show interfaces af-interface-name brief

show interfaces af-interface-name extensive

show interfaces af-interface-name detail

show interfaces af-interface-name

show interfaces af-interface-name detail

show interfaces af-interface-name extensive

show interfaces af-interface-name statistics

show interfaces af2 (with collapsed forwarding configured)

Output Fields

Table 1 describes the output fields for the show interfaces (Abstracted Fabric) command. Output fields are listed in the approximate order in which they appear.

Table 1: show interfaces (Abstracted Fabric) Output Fields

Field Name

Field Description

Level of Output

Physical Interface 

Physical interface

Name and status of the physical interface.

All levels

Interface index

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

detail extensive none

SNMP ifIndex

SNMP index number for the physical interface.

detail extensive none

Generation

Unique number for use by Juniper Networks technical support only.

detail extensive

Type

Interface type.

Link-level type

Encapsulation being used on the physical interface.

All levels

MTU

Maximum transmission unit size on the physical 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 “Interface Flags” section under Common Output Fields Description.

All levels

Link type

Link type. For example, Full-Duplex.

All levels

Damping

Damping information.

detail extensive

Alternate link address

Address of the alternative link.

detail extensive

Hold-times

Current interface hold-time up and hold-time down, in milliseconds (ms).

detail extensive

Current address

Configured MAC address.

detail extensive none

Hardware address

Hardware MAC address.

detail extensive none

Last flapped

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

detail extensive none

Statistics last cleared

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

detail extensive

Traffic statistics

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

  • 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

IPv6 transit statistics

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

extensive

Input errors

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

  • Errors—Sum of the incoming frame aborts and FCS errors.

  • Drops—Number of packets dropped by the input queue.

  • Framing errors—Number of packets received with an invalid frame checksum (FCS).

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

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

  • Resource errors—Sum of transmit drops.

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.

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

  • Drops—Number of packets dropped by the output queue.

    Note:

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

  • Resource errors—Sum of transmit drops.

extensive

Bandwidth

Shows the interface bandwidth.

detail extensive none

Peer GNF id

The GNF peer connected using the Abstracted Fabric interface.

detail extensive none

Peer GNF Forwarding element(FE) view

Shows forwarding element (FE) number and the FPC slot, FE bandwidth, and FE status (up/down).

detail extensive none

Transmit Packets

Shows the packets transmitted.

Transmit Bytes

Shows the bytes transmitted.

Residual Transmit Statistics

Displays the historical transmit statistics for the peer af interface from the FPC events (FPC offline/online/removal/power off on the local or remote side).

Fabric Queue Statistics

Displays the statistics of the transmit traffic on the fabric queues (high and low queues) for each peer PFE on the af interface.

Residual Queue Statistics

Displays the historical fabric queue statistics for the peer af interface from the FPC events (FPC offline/online/removal/power off on the local or remote side).

Collapsed Forwarding Optimized Statistics

This section has the following subsections to display fabric optimization information.

  • Optimal Packets—shows the packets that are already forwarded to optimal Packet Forwarding Engine based on the Abstracted Fabric interface load balancing.

  • Non-optimal Packets—By default, these packets are forwarded to the non-optimal Packet Forwarding Engine by Abstracted Fabric interface. If you have configured the optimize mode using the command set chassis network-slices guest-network-functions gnf id collapsed-forward optimize, this section shows the packets that are optimized because of this configuration. If you have configured the monitor mode using the command set chassis network-slices guest-network-functions gnf id collapsed-forward monitor, this section shows non-optimal packets.

All levels

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 for 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” section under Common Output Fields Description.

All levels

Encapsulation

Encapsulation on the logical interface.

All levels

Protocol

Protocol family. Possible values are described in the “Protocol Field” section under Common Output Fields Description.

detail extensive none

MTU

Maximum transmission unit size on the logical interface.

detail extensive none

Traffic statistics

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

  • Input bytes, Output bytes—Number of bytes received and transmitted on the interface set.

  • Input packets, Output packets—Number of packets received and transmitted on the interface set.

detail extensive

Transit statistics

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

extensive

Local statistics

Number and rate of bytes and packets destined to the router.

extensive

Generation

Unique number for use by Juniper Networks technical support only.

detail extensive

Route Table

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

detail extensive none

Flags

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

detail extensive

Addresses, Flags

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

detail extensive none

protocol-family

Protocol family configured on the logical interface. If the protocol is inet, the IP address of the interface is also displayed.

brief

Flags

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

detail extensive none

Destination

IP address of the remote side of the connection.

detail extensive none

Local

IP address of the logical interface.

detail extensive none

Broadcast

Broadcast address of the logical interface.

detail extensive none

Generation

Unique number for use by Juniper Networks technical support only.

detail extensive

Sample Output

show interfaces af-interface-name

This output is applicable to Junos OS versions prior to 18.3R1.

user@router> show interfaces af4

show interfaces af-interface-name brief

This output is applicable to Junos OS versions prior to 18.3R1.

user@router> show interfaces af4 brief

show interfaces af-interface-name extensive

This output is applicable to Junos OS versions prior to 18.3R1.

user@router> show interfaces af4 extensive

show interfaces af-interface-name detail

This output is applicable to Junos OS versions prior to 18.3R1.

user@router> show interfaces af4 detail

show interfaces af-interface-name

This output is applicable to Junos OS 18.3R1 and later releases.

user@router> show interfaces af9

show interfaces af-interface-name detail

This output is applicable to Junos OS 18.3R1 and later releases.

user@router> show interfaces af2 detail

show interfaces af-interface-name extensive

This output is applicable to Junos OS 18.3R1 and later releases.

user@router> show interfaces af2 extensive

show interfaces af-interface-name statistics

This output is applicable to Junos OS 18.3R1 and later releases.

user@router> show interfaces af4 statistics

show interfaces af2 (with collapsed forwarding configured)

user@router> show interfaces af2