3com MSR 20-20 참조 매뉴얼

# Display line state of T1 line 1 on CT3 interface T3 2/0.

<Sysname> system-view

[Sysname] interface t3 2/0

[Sysname-T3 2/0] t1 1 show

T3 2/0

CT1 1 is up

Frame-format ESF, clock slave, loopback not set

FDL Performance Report is disabled

Transmitter is sending none

Receiver alarm state is none

Line loop back deactivate code using inband signal last sent

BERT state:(stopped, not completed)

Test pattern: 2^11, Status: Not Sync, Sync Detected: 0

Time: 0 minute(s), Time past: 0 minute(s)

Bit errors (since test started): 0 bits

Bits received (since test started): 0 Kbits

Bit errors (since latest sync): 0 bits

Bits received (since latest sync): 0 Kbits 

t1 line-number shutdown

Table 22   Description on the fields of the t1 show command

T3 2/0 CT1 1 is up 

The state of T1 line 1 on the CT3 interface: up or down 

Frame-format ESF 

Framing format of T1: ESF or SF 

clock slave 

Clock source used by the T1 line: slave for the line clock or 
master for the internal clock 

loopback not set 

Loopback state or mode: local, remote, payload, or not set. 

FDL Performance Report is 
disabled 

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

Transmitter is sending RAI 

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 

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 

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

BERT state 

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

Test pattern

Status

Sync Detected 

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

Time

Time past 

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

Bit errors (since test started) 

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

Bits received (since test started) 

Number of bits received since the start of the BERT test 

Bit errors (since latest sync) 

Number of bit errors received since the last synchronization 

Bits received (since latest sync) 

Number of bits received since the last synchronization