Enable - Cisco NCS 4200 Series Configuration Manuals

Configuring Loopback on T3 VCoP Smart SFP
Follow these steps to configure local loopback on T3 VCoP smart SFP.

enable

configure terminal
controller t3 0/0/10
loopback local
end
Follow these steps to configure network loopback on T3 VCoP smart SFP.
enable
configure terminal
controller t3 0/0/10
loopback network
end
To remove loopback, use the no loopback command.
Note
Verifying Loopback on T3 VCOP Smart SFP
Use the show controllers command to verify the loopback local configuration on the T3 VCoP smart SFP.
Device# show controllers t3 0/0/10
T3 0/0/10 is up. (Configured for Locally Looped)
Hardware is 12xGE-4x10GE-FIXED
Applique type is Channelized T3/T1
No alarms detected.
Framing is Unframed, Line Code is B3ZS, Cablelength Short less than 225ft
BER thresholds: SF = 10e-10
Clock Source is internal
Equipment customer loopback
Data in current interval (0 seconds elapsed):
0 Line Code Violations, 0 P-bit Coding Violation
0 C-bit Coding Violation, 0 P-bit Err Secs
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs
0 Unavailable Secs, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
0 Severely Errored Line Secs
0 Far-End Errored Secs, 0 Far-End Severely Errored Secs
0 CP-bit Far-end Unavailable Secs
0 Near-end path failures, 0 Far-end path failures
0 Far-end code violations, 0 FERF Defect Secs
0 AIS Defect Secs, 0 LOS Defect Secs
0 Bipolar Violations/Excessive Zero Errors
0 Code Violations Path Errors, 14 B3 Errors
Use the show controllers command to verify the loopback network configuration on the T3 VCoP smart SFP.
Device# show controllers t3 0/0/10
T3 0/0/10 is up. (Configured for Looped toward the Network)
Hardware is 12xGE-4x10GE-FIXED
Applique type is Channelized T3/T1
No alarms detected.
Framing is Unframed, Line Code is B3ZS, Cablelength Short less than 225ft
BER thresholds: SF = 10e-10
Clock Source is line
Equipment customer loopback
Data in current interval (0 seconds elapsed):
0 Line Code Violations, 0 P-bit Coding Violation
0 C-bit Coding Violation, 0 P-bit Err Secs
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs
0 Unavailable Secs, 0 Line Errored Secs
SD = 10e-10
SD = 10e-10
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