Check Your Work

To verify correct operation of a channelized IQ interface configured as a clear channel, use the following commands:

• show interfaces
• show interfaces controller

To view the interface names of the physical channelized OC-12 IQ interface and the clear channel OC-12 interface configured on the channelized IQ interface, use the show interfaces controller command:

user@RouterA> show interfaces controller

Controller                                                           Admin Link

coc12-4/2/0                                                          up    up

# This is the physical channelized OC-12 IQ interface.

so-4/2/0                                                             up    up

# This is the resulting SONET OC-12 interface.

To view information about the physical channelized interface, include the cxx-fpc/pic/0 (interface name) option with the show interfaces command:

user@RouterA> show interfaces extensive coc12-4/2/0

Physical interface: coc12-4/2/0, Enabled, Physical link is Up

  Interface index: 74, SNMP ifIndex: 1269, Generation: 73

  Link-level type: Controller, MTU: 4474, Clocking: Internal, SONET mode, Speed: 
OC12, Loopback: None,

  FCS: 16, Payload scrambler: Disabled, 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   : 2002-10-09 10:56:45 PDT (05:14:39 ago)

  Statistics last cleared: Never

  Input errors:

    Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0, Bucket drops: 
0, Policed discards: 0,

    L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, HS link 
CRC errors: 0,

    HS link FIFO overflows: 0

  Output errors:

    Carrier transitions: 0, Errors: 0, Drops: 0, Aged packets: 0, HS link FIFO 
underflows: 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                   10           55

    SEF                       0            0  OK

    LOS                       0            0  OK

    LOF                       0            0  OK

    ES-S                     10

    SES-S                     0

    SEFS-S                    0

  SONET line:

    BIP-B2                   10          144

    REI-L                     0            0

    RDI-L                     3            1  OK

    AIS-L                     0            0  OK

    BERR-SF                   0            0  OK

    BERR-SD                   1            1  OK

    ES-L                     10

    SES-L                     0

    UAS-L                     0

    ES-LFE                    3

    SES-LFE                   3

    UAS-LFE                   0

  Received SONET overhead:

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

    S1      : 0x00

  Transmitted SONET overhead:

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

    S1      : 0x00

To view information about the clear channel SONET interface, include the so-fpc/pic/0 (interface name) option with the show interfaces command:

user@RouterA> show interfaces extensive so-4/2/0

Physical interface: so-4/2/0, Enabled, Physical link is Up

  Interface index: 261, SNMP ifIndex: 2000, Generation: 260

  Link-level type: PPP, MTU: 4474, Clocking: Internal, SONET mode, 

Speed: OC12, Loopback: None, FCS: 16,

  Payload scrambler: Enabled, Parent: coc12-4/2/0 (Index 74)

  Device flags   : Present Running

  Interface flags: Point-To-Point SNMP-Traps

  Link flags     : Keepalives

  Hold-times     : Up 0 ms, Down 0 ms

  Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3

  Keepalive statistics:

    Input : 37 (last seen 00:00:04 ago)

    Output: 36 (last sent 00:00:09 ago)

  LCP state: Opened

  NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: 
Not-configured

  CHAP state: Not-configured

  Last flapped   : 2002-10-09 16:04:18 PDT (00:07:26 ago)

  Statistics last cleared: Never

  Traffic statistics:

   Input  bytes  :             80461791              7435000 bps

   Output bytes  :             81637408              7502352 bps

   Input  packets:                34017                  275 pps

   Output packets:                34298                  278 pps

  Input errors:

    Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0, 

Bucket drops: 0, Policed discards: 0,

    L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, HS link 
CRC errors: 0,

    HS link FIFO overflows: 0

  Output errors:

    Carrier transitions: 1, Errors: 0, Drops: 0, Aged packets: 0, HS link FIFO 
underflows: 0

  Queue counters:       Queued packets  Transmitted packets      Dropped packets

    0 best-effort                34129                34129                    0

    1 expedited-fo                   0                    0                    0

    2 assured-forw                   0                    0                    0

    3 network-cont                   0                    0                    0

  SONET alarms   : None

  SONET defects  : None

  SONET path:

    BIP-B3                    0            0

    REI-P                     0            0

    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                      0

    SES-P                     0

    UAS-P                     0

    ES-PFE                    0

    SES-PFE                   0

    UAS-PFE                   0

  Received SONET overhead:

    C2      : 0xcf, C2(cmp) : 0xcf, F2      : 0x00, Z3      : 0x00

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

  Transmitted SONET overhead:

    C2      : 0xcf, F2      : 0x00, Z3      : 0x00, Z4      : 0x00

  Received path trace: RouterB so-2/2/0

    61 72 6d 61 67 6e 61 63 20 73 6f 2d 32 2f 32 2f   RouterB so-2/2/

    30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   0...............

    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................

    00 00 00 00 00 00 00 00 00 00 00 00 00 00 0d 0a   ................

  Transmitted path trace: RouterA so-4/2/0

    74 69 6d 6d 65 73 73 71 75 61 72 65 20 73 6f 2d   RouterA so-

    34 2f 32 2f 30 00 00 00 00 00 00 00 00 00 00 00   4/2/0...........

    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................

    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................

  HDLC configuration:

    Policing bucket: Disabled

    Shaping bucket : Disabled

    Giant threshold: 0, Runt threshold: 0

  Packet Forwarding Engine configuration:

    Destination slot: 4, PLP byte: 4 (0x00)

    CoS transmit queue             Bandwidth           Buffer Priority   Limit

                              %          bps   %        bytes

    0 best-effort            95    590976000  95            0      low    none

    3 network-control         5     31104000   5            0      low    none

  Logical interface so-4/2/0.0 (Index 7) (SNMP ifIndex 2001) (Generation 12)

    Flags: Point-To-Point SNMP-Traps Encapsulation: PPP

    Protocol inet, MTU: 4470, Generation: 18, Route table: 0

      Flags: None

      Addresses, Flags: Is-Preferred Is-Primary

        Destination: 10.245.1.0/30, Local: 10.245.1.1, Broadcast: Unspecified, 
Generation: 21