Step 2: Display Extensive Status Information for a Specific ATM1 Interface

Action

To display extensive status information about a specific interface, use the following JUNOS CLI operational mode command:

user@host> show interfaces at-fpc/pic/port extensive

Sample Output

user@host> show interfaces at-2/0/1 extensive 

Physical interface: at-2/0/1, Enabled, Physical link is Down

  Interface index: 23, SNMP ifIndex: 43, Generation: 22

  Link-level type: ATM-PVC, MTU: 4482, Clocking: Internal, SONET mode, Speed: 
OC3, Loopback: None, Payload scrambler: Enabled

  Device flags   : Present Running Down

  Link flags     : None

  Hold-times     : Up 0 ms, Down 0 ms

  Statistics last cleared: 2002-07-29 14:28:14 EDT (00:18:00 ago)

  Traffic statistics:

   Input  bytes  :                    0                    0 bps

   Output bytes  :                    0                    0 bps

   Input  packets:                    0                    0 pps

   Output packets:                    0                    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   : LOL, LOS

  SONET defects  : LOL, LOF, LOS, SEF, AIS-L, AIS-P, RDI-P, PLM-P

  SONET PHY:            Seconds        Count  State

    PLL Lock                  0            0  OK

    PHY Light              1079            0  Light Missing

  SONET section:

    BIP-B1                    0            0

    SEF                    1079            0  Defect Active

    LOS                    1079            0  Defect Active

    LOF                    1079            0  Defect Active

    ES-S                   1079

    SES-S                  1079

    SEFS-S                 1079

  SONET line:

    BIP-B2                    0            0

    REI-L                     0            0

    RDI-L                     0            0  OK

    AIS-L                  1079            0  Defect Active

    BERR-SF                   0            0  OK

    BERR-SD                   0            0  OK

    ES-L                   1079

    SES-L                  1079

    UAS-L                  1079

    ES-LFE                    0

    SES-LFE                   0

    UAS-LFE                   0

  SONET path:

    BIP-B3                    0            0

    REI-P                     0            0

    LOP-P                     0            0  OK

    AIS-P                  1079            0  Defect Active

    RDI-P                  1079            0  Defect Active

    UNEQ-P                    0            0  OK

    PLM-P                  1079            0  Defect Active

    ES-P                   1079

    SES-P                  1079

    UAS-P                  1079

    ES-PFE                 1079

    SES-PFE                1079

    UAS-PFE                1079

  Received SONET overhead:

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

    S1      : 0x00, C2      : 0xff, 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:     Hunt

    LOC      :       OK

  ATM Statistics:

    Uncorrectable HCS errors: 0, Correctable HCS errors: 0, Tx cell FIFO 
overruns: 0, Rx cell FIFO overruns: 0,

    Rx cell FIFO underruns: 0, Input cell count: 0, Output cell count: 
381110991, Output idle cell count: 18446744069795695321,

    Output VC queue drops: 0, Input no buffers: 0, Input length errors: 0, Input 
timeouts: 0, Input invalid VCs: 0,

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

  PFE configuration:

    Destination slot: 2

    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-2/0/1.10 (Index 30) (SNMP ifIndex 65) (Generation 29)

    Flags: Device-Down Point-To-Point SNMP-Traps Encapsulation: ATM-SNAP

    Traffic statistics:

     Input  bytes  :                    0

     Output bytes  :                    0

     Input  packets:                    0

     Output packets:                    0

    Local statistics:

     Input  bytes  :                    0

     Output bytes  :                    0

     Input  packets:                    0

     Output packets:                    0

    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: 32 Route table: 0

      Addresses, Flags: Dest-route-down Is-Preferred Is-Primary

        Destination: 192.168.100.0/30, Local: 192.168.100.1, Broadcast: 
Unspecified, Generation: 61

    VCI 2.100

      Flags: Active

      Total down time: 0 sec, Last down: Never

      ATM per-VC transmit statistics:

       Tail queue packet drops: 0

      Traffic statistics:

       Input  bytes  :                    0

       Output bytes  :                    0

       Input  packets:                    0

       Output packets: 

What It Means

The sample output is for an OC-3 ATM interface and shows the statistics for the SONET media, as well as the Input and Output ATM errors. Error details include input and output errors, active alarms and defects, and media-specific errors.

If the physical link is down, look at the active alarms and defects for the ATM interface and check the ATM media accordingly. See Locate ATM Alarms and Errors for an explanation of ATM alarms.