Channelized T1 Port Adapter Installation and Configuration 49
Configuring 2CT1 Interfaces
The following example of the show interfaces serial port adapter slot number/interface port
number:pri-group command shows all of the information specific to the same interface (interface
port 1 in port adapter slot 1) when the interface is configured for ISDN PRI:
Router# show interface serial 1/1:23
Serial1/1:23 is up, line protocol is up (spoofing)
Hardware is MPA-T1
Internet address is 10.1.15.1
MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set
Last input 00:00:42, output 00:00:56, output hang never
Last clearing of “show interface” counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/64/0 (size/threshold/drops)
Conversations 0/1 (active/max active)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
149 packets input, 40207 bytes, 0 no buffer
Received 298 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
128 packets output, 44416 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
20 carrier transitions no alarm present
Timeslot(s) Used:1-24, subrate: 64Kb/s, transmit delay is 0 flags
Note
In the above example, the term “spoofing” indicates that the interface is configured for ISDN
PRI. The term ”spoofing” is indicated only on timeslot 24 (the D channel), which is recognized by
the system as timeslot 23.
Use the show controllers t1 [port adapter slot number/interface port number] command to display
the status of each installed T1 interface. The following example of the show controllers t1
command shows the status of a 2CT1 port adapter installed in port adapter slot 1, interface port 0:
Router# show controllers t1 1/0
T1 1/0 is up.
No alarms detected.
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (710 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 1:
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
[display text omitted]