Step 2: Display the Status of a Specific Channelized Interface

Action

To display the status of a specific channelized DS-3 to DS-0 interface or channelized DS-3 to DS-1 interface, use one of the following CLI operational mode commands:

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

user@host> show interfaces t1-fpc/pic/port:channel

Sample Output

The following sample output is for a channelized DS-3 to DS-0 interface:

user@host> show interfaces ds-2/1/0:5:1 

Physical interface: ds-2/1/0:5:1, Enabled, Physical link is Up

  Interface index: 36, SNMP ifIndex: 133

  Description: Customer

  Link-level type: Cisco-HDLC, MTU: 1504, Clocking: Internal, Speed: 64kbps, 
FCS: 16, Mode: M23,

  Framing: ESF

  Device flags   : Present Running

  Interface flags: Point-To-Point SNMP-Traps

  Link flags     : Keepalives

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

  Keepalive: Input: 1 (00:00:06 ago), Output: 1 (00:00:06 ago)

  Input rate     : 0 bps (0 pps)

  Output rate    : 0 bps (0 pps)

  DS1   alarms   : None

  DS3   alarms   : None

  DS1   defects  : None

  DS3   defects  : None

  Logical interface ds-2/1/0:5:1.0 (Index 14) (SNMP ifIndex 134) 

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

    Protocol inet, MTU: 1500, Flags: None

      Addresses, Flags: Is-Preferred Is-Primary

        Destination: 192.168.140.196/30, Local: 192.168.140.197

The following sample output is for a channelized DS-3 to DS-1 interface:

user@host> show interfaces t1-2/1/0:19  

Physical interface: t1-2/1/0:19, Enabled, Physical link is Up

  Interface index: 50, SNMP ifIndex: 59

  Description: Customer

  Link-level type: Cisco-HDLC, MTU: 1504, Clocking: Internal, Speed: T1, 
Loopback: None, FCS: 16,

  Mode: M23, Framing: ESF

  Device flags   : Present Running

  Interface flags: Point-To-Point SNMP-Traps

  Link flags     : Keepalives

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

  Keepalive: Input: 11 (00:00:06 ago), Output: 13 (00:00:04 ago)

  Input rate     : 741512 bps (224 pps)

  Output rate    : 1266528 bps (224 pps)

  DS1   alarms   : None

  DS3   alarms   : None

  DS1   defects  : None

  DS3   defects  : None

  Logical interface t1-2/1/0:19.0 (Index 27) (SNMP ifIndex 125) 

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

    Protocol inet, MTU: 1500, Flags: None

      Addresses, Flags: Is-Preferred Is-Primary

        Destination: 192.168.118.96/30, Local: 192.168118.97

What It Means

The first line of the sample output shows the status of the link. If this line shows that the physical link is up, the physical link is healthy and can pass packets. If this line shows that the physical link is down, the physical link is unhealthy and cannot pass packets.