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Check Your Work

To verify correct operation of a channelized DS-3 IQ interface, use the following commands:

show interfaces
show interfaces controller
show interfaces interval (for T3, channelized T3, T1, and channelized T1 channels)

To view the interface names of the physical channelized DS-3 IQ interface and the channels configured on this interface, use the show interfaces controller command:

user@RouterA> show interfaces controller ct3-0/0/1

Controller                                                           Admin Link

ct3-0/0/1                                                            up    up

# This is the physical channelized DS-3 (channelized T3) IQ interface.

    t1-0/0/1:1                                                       up    up

# Channel 1 is a channelized T1 interface.

    ct1-0/0/1:2                                                      up    up

        ds-0/0/1:2:1                                                 up    up

        ds-0/0/1:2:2                                                 up    up

        ds-0/0/1:2:3                                                 up    up

    t1-0/0/1:3                                                       up    down

    t1-0/0/1:4                                                       up    up

    t1-0/0/1:5                                                       up    up

    t1-0/0/1:6                                                       up    up

    t1-0/0/1:7                                                       up    up

    t1-0/0/1:8                                                       up    up

    t1-0/0/1:9                                                       up    up

    t1-0/0/1:10                                                      up    up

# Channels 3 through 10 are T1 interfaces.

    ct1-0/0/1:11                                                     up    up

    ct1-0/0/1:12                                                     up    up

    ct1-0/0/1:13                                                     up    up

    ct1-0/0/1:14                                                     up    up

    ct1-0/0/1:15                                                     up    up

    ct1-0/0/1:16                                                     up    up

    ct1-0/0/1:17                                                     up    up

    ct1-0/0/1:18                                                     up    up

    ct1-0/0/1:19                                                     up    up

    ct1-0/0/1:20                                                     up    up

    ct1-0/0/1:21                                                     up    up

    ct1-0/0/1:22                                                     up    up

    ct1-0/0/1:23                                                     up    up

    ct1-0/0/1:24                                                     up    up

    ct1-0/0/1:25                                                     up    up

    ct1-0/0/1:26                                                     up    up

    ct1-0/0/1:27                                                     up    up

    ct1-0/0/1:28                                                     up    up

# Channels 11 through 28 are channelized T1 interfaces.

To view information about the physical channelized interface, include the ct3-fpc/pic/port (interface name) option with the show interfaces command:

user@RouterA> show interfaces extensive ct3-0/0/1

Physical interface: ct3-0/0/1, Enabled, Physical link is Up

  Interface index: 30, SNMP ifIndex: 317, Generation: 29

  Link-level type: Controller, MTU: 4474, Clocking: Internal, Speed: T3,

  Loopback: None, FCS: 16, Mode: C/Bit parity, Parent: None

  Device flags   : Present Running

  Interface flags: Point-To-Point SNMP-Traps

  Link flags     : None

  Hold-times     : Up 0 ms, Down 0 ms

  Last flapped   : 2002-10-04 10:24:18 PDT (01:40:40 ago)

  Statistics last cleared: 2002-10-04 11:47:27 PDT (00:17:31 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, Framing errors: 0, Bucket drops: 0,

    Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0,

    L2 mismatch timeouts: 0, HS link CRC errors: 0, SRAM errors: 0

  Output errors:

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

  Active alarms  : None

  Active defects : None

  DS3 media:            Seconds        Count  State

    PLL Lock                  0            0  OK

    Reframing                 0            0  OK

    AIS                       0            0  OK

    LOF                       0            0  OK

    LOS                       0            0  OK

    IDLE                      0            0  OK

    YELLOW                    0            0  OK

    BPV                       0            0

    EXZ                       0            0

    LCV                       0            0

    PCV                       0            0

    CCV                       0            0

    LES                       0

    PES                       0

    PSES                      0

    CES                       0

    CSES                      0

    SEFS                      0

  HDLC configuration:

    Policing bucket: Disabled

    Shaping bucket : Disabled

    Giant threshold: 0, Runt threshold: 0

  DSU configuration:

    Compatibility mode: None, Scrambling: Disabled, Subrate: Disabled

    FEAC loopback: Inactive, Response: Disabled, Count: 0

  DS-3 BERT configuration:

    BERT time period: 10 seconds, Elapsed: 0 seconds

    Algorithm: 2^3 - 1, Pseudorandom (1), Induced error rate: 10e-0

  Packet Forwarding Engine configuration:

    Destination slot: 0 (0x00)

    CoS transmit queue             Bandwidth           Buffer Priority   Limit

                              %          bps   %        bytes

    0 best-effort            95     42499200  95            0      low    none

    3 network-control         5      2236800   5            0      low    none

To view information about a channelized T1 channel, include the ct1-fpc/pic/port:channel (interface name) option with the show interfaces command:

user@RouterA> show interfaces extensive ct1-0/0/1:2

Physical interface: ct1-0/0/1:2, Enabled, Physical link is Up

  Interface index: 175, SNMP ifIndex: 1505, Generation: 174

  Link-level type: Controller, MTU: 1504, Clocking: Internal, Speed: T1,

  Loopback: None, FCS: 16, Framing: ESF, Parent: ct3-0/0/1 (Index 32)

  Device flags   : Present Running

  Interface flags: Point-To-Point SNMP-Traps

  Link flags     : None

  Hold-times     : Up 0 ms, Down 0 ms

  Last flapped   : 2002-10-04 12:08:23 PDT (00:05:57 ago)

  Statistics last cleared: Never

  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, Framing errors: 0, Policed discards: 0,

    L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0,

    HS link CRC errors: 0, SRAM errors: 0

  Output errors:

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

  DS1   alarms   : None

  DS1   defects  : AIS, LOF

  T1  media:            Seconds        Count  State

    SEF                       0            0  OK

    BEE                       1            1  OK

    AIS                     355            1  Defect Active

    LOF                     355            1  Defect Active

    LOS                       0            0  OK

    YELLOW                    0            0  OK

    BPV                       0            0

    EXZ                       0            0

    LCV                       0            0

    PCV                       0            0

    CS                        0            0

    LES                     355

    ES                      355

    SES                     355

    SEFS                    355

    BES                       0

    UAS                       0

  HDLC configuration:

    Policing bucket: Disabled

    Shaping bucket : Disabled

    Giant threshold: 1514, Runt threshold: 0

    Timeslots      : All active

    Line encoding: B8ZS, Byte encoding: Nx64K

    Buildout       : 0 to 132 feet

    Data inversion: Disabled

  DS1 BERT configuration:

    BERT time period: 10 seconds, Elapsed: 0 seconds

    Induced Error rate: 10e-0, Algorithm: 2^15 - 1, O.151, Pseudorandom (9)

  Packet Forwarding Engine configuration:

    Destination slot: 0 (0x00)

    CoS transmit queue             Bandwidth           Buffer Priority   Limit

                              %          bps   %        bytes

    0 best-effort            95      1459200  95            0      low    none

    3 network-control         5        76800   5            0      low    none

To view information about an NxDS-0 interface, include the ds-fpc/pic/port:channel (interface name) option with the show interfaces command. In this case, the speed is 640 Kbps because this channel contains 10 DS-0s (64 x 10 = 640).

user@RouterA> show interfaces extensive ds-0/0/1:2:1

Physical interface: ds-0/0/1:2:1, Enabled, Physical link is Up

  Interface index: 176, SNMP ifIndex: 1563, Generation: 175

  Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 640kbps,

  Loopback: None, FCS: 16, Parent: ct1-0/0/1:2 (Index 175)

  Device flags   : Present Running

  Interface flags: Point-To-Point SNMP-Traps

  Link flags     : Keepalives

  Hold-times     : Up 0 ms, Down 0 ms

  Last flapped   : 2002-10-04 12:09:06 PDT (00:05:54 ago)

  Statistics last cleared: Never

  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, Framing errors: 0, Policed discards: 0,

    L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0,

    HS link CRC errors: 0

  Output errors:

    Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0

  Queue counters:       Queued packets  Transmitted packets      Dropped packets

    0 best-effort                    0                    0                    0

    1 expedited-fo                   0                    0                    0

    2 assured-forw                   0                    0                    0

    3 network-cont                   0                    0                    0

  Interface transmit queues:

              B/W  WRR       Packets        Bytes        Drops       Errors

    Queue0      0    0             0            0            0            0

    Queue1      0    0             0            0            0            0

  HDLC configuration:

    Giant threshold: 0, Runt threshold: 0

    Timeslots      : 1-10

    Byte encoding: Nx64K, Data inversion: Disabled

  Packet Forwarding Engine configuration:

    Destination slot: 0, PLP byte: 4 (0x10)

    CoS transmit queue             Bandwidth           Buffer Priority   Limit

                              %          bps   %        bytes

    0 best-effort            95       608000  95            0      low    none

    3 network-control         5        32000   5            0      low    none

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