Step 5: Verify the Status of the Logical Interface

Action

To verify the status of the logical interface, use the following JUNOS CLI operational mode command:

user@host> show interfaces t3-fpc/pic/port:channel.

NOTE: For a list of interface types associated with the Channelized OC-12 IQ interface, see Channelized Intelligent Queuing Interface Naming.

Sample Output

user@host> show interfaces t3-0/3/0:11          

Physical interface: t3-0/3/0:11, Enabled, Physical link is Up

  Interface index: 204, SNMP ifIndex: 129

  Link-level type: Cisco-HDLC, MTU: 4474, SONET mode, Speed: T3, Loopback: 
Local,

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

  Device flags   : Present Running

  Interface flags: Point-To-Point SNMP-Traps

  Link flags     : No-Keepalives

  CoS queues     : 4 supported

  Last flapped   : 2004-05-21 15:23:34 UTC (01:34:24 ago)

  Input rate     : 0 bps (0 pps)

  Output rate    : 0 bps (0 pps)

  DS3   alarms   : None

  SONET alarms   : None

  DS3   defects  : None

  SONET defects  : None

  DS-3 BERT configuration:

    BERT time period: 0 seconds, Elapsed: 0 seconds

    Algorithm: Unknown (0), Induced error rate: 10e-0

  Logical interface t3-0/3/0:11.0 (Index 71) (SNMP ifIndex 130) 

    Flags: Point-To-Point SNMP-Traps Encapsulation: Cisco-HDLC

    Protocol inet, MTU: 4470

      Flags: None

      Addresses, Flags: Is-Preferred Is-Primary

        Destination: 10.0.0.0/30, Local: 10.0.0.1, Broadcast: 10.0.0.3

What It Means

The sample output shows that the channelized interface has the physical and logical links up. There are no alarms or defects. If there are SONET layer errors, see Investigate SONET Interfaces, for information on diagnosing SONET interface problems.