272CHAPTER 17: FUNDAMENTAL CT3 INTERFACE CONFIGURATION COMMANDS

Table 21 Description on the fields of the display controller t3 command

Field

Description

Data in current interval: Line Code Violations Far End Block Error C-Bit Coding Violation P-bit Coding Violation Framing Bit Err Severely Err Framing Secs C-bit Err Secs

C-bit Severely Err Secs P-bit Err Secs

P-bit Severely Err Secs

Unavailable Secs

Line Err Secs

Data in Interval 1

Total Data (last 17 15 minute intervals)

T3 2/0 CT1 1 is up

Statistics spanning the current 15-minute interval, coving the counts of these items:

Line code violations: BPV, or EXZ

Far-end block error

C-bit coding violation

P-bit coding violation

Framing bit error

C-bit erroneous second

C-bit severely erroneous second, that is, the second during which 44 C-bit errors occur

P-bit erroneous second

P-bit severely erroneous second, that is, the second during which 44 P-bit errors occur

Service unavailable second

Line erroneous second, during which LOS, BPV, EXZ, C-bit, P-bit, and other errors occur

Data in interval 1

Total data spanning the last 17 intervals

State of T1 line on the CT3 interface: up or down. In this output sample, T1 line 1 is up.

Frame-format ESF, clock slave, loopback not set

FDL Performance Report is disabled

Transmitter is sending RAI

Information about the T1 line:

Framing format-ESF or SF

Clock source-slave for the line clock and master for the internal clock

Loopback-Local, remote, payload, or not set

Transmission of PPR in the FDL is disabled. You may enable that with the t1 set fdl ansi command.

The transmitter of the T1 line is sending RAI signals. When the T1 line receives LOS, LOF, or AIS signals, it sends RAI signals.

Receiver alarm state is LOF

The type of alarm signal that the T1 line can receive:

 

LOS, LOF, AIS, or RAI

Line loop back activate code using inband signal last sent

BERT state

The loopback code sent last time is in-band LLB activation request code.

BERT test state: running, complete, or stopped (not completed)

Test pattern

Status

Sync Detected

Time

Time past

Bit errors (since test started)

Bits received (since test started) Bit errors (since latest sync)

Test pattern in use, 2^11 in this sample output; synchronization state, and the number of detected synchronizations

The duration of the BERT test and the time that has elapsed

Number of bit errors received since the start of the BERT test

Number of bits received since the start of the BERT test

Number of bit errors received since the last synchronization

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3Com MSR 30, MSR 50 manual LOS, LOF, AIS, or RAI