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show interfaces (Flow Monitoring)

date_range 19-Nov-23

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Syntax

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show interfaces mo-fpc/pic/port:channel
<brief | detail | extensive | terse>
<descriptions>
<media>
<snmp-index snmp-index>
<statistics>

Description

(M Series and T Series routers only) Display status information about the specified flow monitoring interface.

Options

mo-`fpc`/`pic`/`port`:`channel`	Display standard status information about the specified flow monitoring interface.
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

Output Fields

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

Table 1: show interfaces Output Fields (Flow Monitoring)
Field Name	Field Description	Level of Output
Physical Interface
Physical interface	Name of the physical interface.	All levels
Link	Status of the link: up or down.	All levels
Enabled	State of the interface. Possible values are described in the “Enabled Field” section under Common Output Fields Description.	All levels
Interface index	Physical interface index number, 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
Description	Description and name of the interface.	All levels
Type	Type of interface.	All levels
Link-level type	Encapsulation type used on the physical interface.	All levels
MTU	Maximum Transmit Unit (MTU). Size of the largest packet to be transmitted.	All levels
Clocking	Reference clock source of the interface.	All levels
Speed	Network speed on the interface.	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	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
Physical info	Information about the physical interface.	All levels
Hold-times	Current interface hold-time up and hold-time down. Value is in milliseconds.	detail extensive
Current address	Configured MAC address.	detail extensive none
Hardware address	Media access control (MAC) address of the interface.	detail extensive none
Alternate link address	Backup link 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
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, Output bytes—Number of bytes received and transmitted on the interface. Input packets, Output packets—Number of packets received and transmitted on the interface.	detail extensive
Input errors	Errors—Input errors on the interface. Drops—Number of packets dropped by the output queue of the I/O Manager ASIC. Framing errors—Number of packets received with an invalid frame checksum (FCS). Runts—Frames received smaller than the runt threshold. Giants—Frames received larger than the giant threshold. Policed Discards—Frames that the incoming packet match code discarded because the frames did not recognize them or were not of interest. Usually, this field reports protocols that Junos does not support. Resource errors—Sum of transmit drops.	extensive
Output errors	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, possibly once every 10 seconds, the cable, the remote system, or the interface is malfunctioning. Errors—Sum of 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 dropped by the ASIC Red mechanism. Resource errors—Sum of transmit drops.	extensive
Logical Interface
Logical interface	Name of the logical interface.	All levels
Index	Logical interface index number, which reflects its initialization sequence.	detail extensive none
SNMP ifIndex	Logical interface SNMP interface index number.	detail extensive none
Generation	Unique number for use by Juniper Networks technical support only.	detail extensive
Flags	Information about the logical interface; values are described in the “Logical Interface Flags” section under Common Output Fields Description.	All levels
Encapsulation	Encapsulation on the logical interface.	All levels
Traffic statistics	Total number of bytes and packets received and transmitted on the logical interface. These statistics are the sum of the local and transit statistics. When a burst of traffic is received, the value in the output packet rate field might briefly exceed the peak cell rate. It takes awhile (generally, less than 1 second) for this counter to stabilize. Input bytes, Output bytes—Number of bytes received and transmitted on the interface. Input packets, Output packets—Number of packets received and transmitted on the interface.	detail extensive
Local statistics	Statistics for traffic received from and transmitted to the Routing Engine. When a burst of traffic is received, the value in the output packet rate field might briefly exceed the peak cell rate. It takes awhile (generally, less than 1 second) for this counter to stabilize.	detail extensive
Transit statistics	Statistics for traffic transiting the router. When a burst of traffic is received, the value in the output packet rate field might briefly exceed the peak cell rate. It takes awhile (generally, less than 1 second) for this counter to stabilize.	detail extensive
Protocol	Protocol family configured on the logical interface (such as iso or inet6).	detail extensive none
MTU	MTU size on the logical interface.	detail extensive none
Generation	Unique number for use by Juniper Networks technical support only.	detail extensive
Route table	Route table in which this address exists; for example, Route table:0 refers to inet.0.	detail extensive
Flags	Information about the protocol family flags. Possible values are described in the “Family Flags” section under Common Output Fields Description.	detail extensive none

Sample Output

show interfaces extensive (Flow Monitoring)

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user@host> show interfaces mo-4/0/0 	extensive
Physical interface: mo-4/0/0, Enabled, Physical link is Up
  Interface index: 144, SNMP ifIndex: 42, Generation: 28
  Description: monitor pic 2
  Type: Adaptive-Services, Link-level type: Adaptive-Services, MTU: Unlimited,
  Clocking: Unspecified, Speed: 800mbps
  Device flags   : Present Running
  Interface flags: Point-To-Point SNMP-Traps 16384
  Link type      : Full-Duplex
  Link flags     : None
  Physical info  : Unspecified
  Hold-times     : Up 0 ms, Down 0 ms
  Current address: Unspecified, Hardware address: Unspecified
  Alternate link address: Unspecified
  Last flapped   : 2005-05-24 16:43:12 PDT (00:17:46 ago)
  Statistics last cleared: Never
  Traffic statistics:
   Input  bytes  :            756824218              8328536 bps
   Output bytes  :            872916185              8400160 bps
   Input  packets:               508452                  697 pps
   Output packets:             15577196                18750 pps
  Input errors:
    Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0,
    Policed discards: 0, Resource errors: 0
  Output errors:
    Carrier transitions: 2, Errors: 0, Drops: 0, MTU errors: 0,
    Resource errors: 0

  Logical interface mo-4/0/0.0 (Index 83) (SNMP ifIndex 43) (Generation 26)
    Flags: Point-To-Point SNMP-Traps Encapsulation: Adaptive-Services
    Traffic statistics:
     Input  bytes  :            756781796
     Output bytes  :            872255328
     Input  packets:               507233
     Output packets:             15575988
    Local statistics:
     Input  bytes  :                    0
     Output bytes  :                    0
     Input  packets:                    0
     Output packets:                    0
    Transit statistics:
     Input  bytes  :            756781796              8328536 bps
     Output bytes  :            872255328              8400160 bps
     Input  packets:               507233                  697 pps
     Output packets:             15575988                18750 pps
    Protocol inet, MTU: Unlimited, Generation: 38, Route table: 0
      Flags: None

  Logical interface mo-4/0/0.16383 (Index 84) (SNMP ifIndex 58) (Generation 27)
...

Release Information

Command introduced before Junos OS Release 7.4.

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