Step 2: Display Detailed Interface Information

Purpose

Detailed interface information is useful when you need to further investigate the status of an interface after you have determined that there might be a problem.

Action

To display detailed information about the status of an interface, use the following JUNOS CLI operational mode command:

user@host> show interfaces interface-name extensive

Sample Output

The sample output is for an ATM interface. The fields vary depending on the type of interface.

user@host> show interfaces at-7/0/0 extensive

Physical interface: at-7/0/0, Enabled, Physical link is Up

  Interface index: 101, SNMP ifIndex: 106, Generation: 100

  Description: bangkok51 at-1/1/0

  Link-level type: ATM-PVC, MTU: 4482, Clocking: Internal, SONET mode, 

Speed: OC12, Loopback: None,

  Payload scrambler: Enabled

  Device flags   : Present Running

  Link flags     : None

  Hold-times     : Up 0 ms, Down 0 ms

  Current address: 00:90:69:10:c7:72

  Last flapped   : 2002-05-23 12:12:18 PDT (1d 03:20 ago)

  Statistics last cleared: Never

  Traffic statistics:

   Input  bytes  :              9526697                  744 bps

   Output bytes  :             10458384                  496 bps

   Input  packets:               129969                    0 pps

   Output packets:               126940                    0 pps

  Input errors:

    Errors: 0, Drops: 0, Invalid VCs: 0, Framing errors: 0, Policed 

discards: 0, L3 incompletes: 0,

    L2 channel errors: 0, L2 mismatch timeouts: 0

  Output errors:

    Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0

  SONET alarms   : None

  SONET defects  : None

  SONET PHY:            Seconds        Count  State

    PLL Lock                  0            0  OK

    PHY Light                 0            0  OK

  SONET section:

    BIP-B1                    1            9

    SEF                       0            0  OK

    LOS                       0            0  OK

    LOF                       0            0  OK

    ES-S                      1

    SES-S                     0

    SEFS-S                    0

  SONET line:

    BIP-B2                    1          183

    REI-L                     1          323

    RDI-L                     0            0  OK

    AIS-L                     0            0  OK

    BERR-SF                   0            0  OK

    BERR-SD                   0            0  OK

    ES-L                      1

    SES-L                     0

    UAS-L                     0

    ES-LFE                    1

    SES-LFE                   0

    UAS-LFE                   0

  SONET path:

    BIP-B3                    1           31

    REI-P                     1          216

    LOP-P                     0            0  OK

    AIS-P                     0            0  OK

    RDI-P                     0            0  OK

    UNEQ-P                    0            0  OK

    PLM-P                     0            0  OK

    ES-P                      1

    SES-P                     0

    UAS-P                     0

    ES-PFE                    1

    SES-PFE                   0

    UAS-PFE                   0

  Received SONET overhead:

    F1      : 0x00, J0      : 0x00, K1      : 0x00, K2      : 0x00

    S1      : 0x00, C2      : 0x13, C2(cmp) : 0x13, F2      : 0x00

    Z3      : 0x00, Z4      : 0x00, S1(cmp) : 0x00, V5      : 0x00

    V5(cmp) : 0x00

  Transmitted SONET overhead:

    F1      : 0x00, J0      : 0x01, K1      : 0x00, K2      : 0x00

    S1      : 0x00, C2      : 0x13, F2      : 0x00, Z3      : 0x00

    Z4      : 0x00, V5      : 0x00

  ATM status:

    HCS state:     Sync

    LOC      :       OK

  ATM Statistics:

    Uncorrectable HCS errors: 77, Correctable HCS errors: 5, Tx cell 

FIFO overruns: 0,

    Rx cell FIFO overruns: 1, Rx cell FIFO underruns: 0, Input cell 

count: 421980,

    Output cell count: 139110927341, Output idle cell count: 1671702365, 

Output VC queue drops: 0,

    Input no buffers: 0, Input length errors: 0, Input timeouts: 0, 

Input invalid VCs: 143301,

    Input bad CRCs: 0, Input OAM cell no buffers: 0

  Packet Forwarding Engine configuration:

    Destination slot: 7

    CoS transmit queue          Bandwidth          Buffer     Priority   

Limit

                              %          bps   %        bytes

    0 best-effort             0            0   0            0      

low    none

    1 expedited-forwarding    0            0   0            0      

low    none

    2 assured-forwarding      0            0   0            0      

low    none

    3 network-control         0            0   0            0      

low    none

Logical interface at-7/0/0.100 (Index 49) (SNMP ifIndex 143) (Generation 76)

    Flags: Point-To-Point Inverse-ARP SNMP-Traps Encapsulation: ATM-SNAP

    Traffic statistics:

     Input  bytes  :                 9993

     Output bytes  :                16246

     Input  packets:                  151

     Output packets:                  136

    Local statistics:

     Input  bytes  :                 9993

     Output bytes  :                16246

     Input  packets:                  151

     Output packets:                  136

    Transit statistics:

     Input  bytes  :                    0                    0 bps

     Output bytes  :                    0                    0 bps

     Input  packets:                    0                    0 pps

     Output packets:                    0                    0 pps

    Protocol inet, MTU: 4470, Flags: None, Generation: 200 Route table: 0

      Addresses, Flags: Is-Preferred Is-Primary

        Destination: 10.9.140.1, Local: 10.9.140.2, Broadcast: 

    Unspecified, Generation: 106

    Protocol iso, MTU: 4470, Flags: None, Generation: 201 Route table: 0

    Protocol mpls, MTU: 4458, Flags: None, Generation: 202 Route table: 0

    VCI 0.200

      Flags: Active, Inverse-ARP, OAM, Shaping

      VBR, Peak: 12mbps, Sustained: 10mbps, Burst size: 24, Queue length: 0

      OAM, Period 10 sec, Up count: 5, Down count: 4

      Total down time: 0 sec, Last down: Never

      ATM per-VC transmit statistics:

       Tail queue packet drops: 0

     OAM F5 cell statistics:

      Total received: 49, Total sent: 49

      Loopback received: 49, Loopback sent: 49

      Last received: 00:00:08, Last sent: 00:00:08

      RDI received: 0, RDI sent: 0

      AIS received: 0

      Traffic statistics:

       Input  bytes  :                 9993

       Output bytes  :                16246

       Input  packets:                  151

       Output packets:                  136

What It Means

The sample output shows static status information about this particular ATM interface. For examples of sample output for supported interfaces, see the JUNOS Network Interfaces Configuration Guide.

Table 29 lists the interface types supported by the JUNOS software and shows the interface name as it appears in the output.

Table 29: Interface Types Supported by the JUNOS Software

Interface Group	Interface Type	Format of interface-name
ATM	ATM	at-fpc/pic/port
Channelized	Channelized DS-3 to DS-0 Channelized DS-3 to DS-1 Channelized E1 Channelized OC-3 to T1 Channelized OC-12 to DS-3 Channelized STM-1 to E1	ds-fpc/pic/port:T1channel:DS-0 channel t1 t1-fpc/pic/port:channel t1 ds-fpc/pic/port:ds-0 channel e1 t3-fpc/pic/port:channel e1-fpc/pic/port:channel
T1, T3, E1, E3	E1 E3 T1 T3	e1-fpc/pic/port e3-fpc/pic/port t1-fpc/pic/port t3-fpc/pic/port
Ethernet	Aggregated Ethernet Fast Ethernet Gigabit Ethernet 10-Gigabit Ethernet Internal Ethernet Management Ethernet	ae-fpc/pic/port fe-fpc/pic/port ge-fpc/pic/port ge-fpc/pic/port fxp fxp
Multilink	Frame Relay PPP	ml-fpc/pic/port ml-fpc/pic/port
SONET/SDH	Aggregated SONET/SDH SONET/SDH	as-fpc/pic/port so-fpc/pic/port
Other	Encryption GRE tunnel IP-IP tunnel Loopback	es-fpc/pic/port:es gr-fpc/pic/port ip-fpc/pic/port lo