48-Port T3/E3 CEM Interface Module Configuration Guide, Cisco IOS XE Fuji 16.7.x (Cisco NCS 4200 Series)
- Updated:
- February 14, 2018
Chapter: Configuring T3/E3 Interfaces on 48-Port T3/E3 Interface Module
- Information About T3/E3 Interfaces
- How to Configure T3/E3 Interfaces
- Setting the Port
- Configuring the Controller of Clear Channel T3/E3 Interfaces
- Configuring the Controller of Channelized T3/T1 or E3/E1 Interfaces
- Configuring Framed Structure-Agnostic TDM over Packet (SAToP)
- Configuring SAToP - Clear Channel T3/E3 Interfaces
- Configuring SAToP - Channelized T3/T1 Interfaces
- Configuring SAToP - Channelized E3/E1 Interfaces
- Configuring MDL for T3 Interfaces
- Performance Monitoring
Configuring T3/E3 Interfaces on 48-Port T3/E3 Interface Module
T3/E3 interface on the 48-Port T3/E3 Interface Module supports 48 ports. The channels on the T3/E3 interface can be configured as either clear channel mode or channelized mode.
 Note | T3/E3 is supported only on Cisco NCS 4206 and Cisco NCS 4216. |
- Information About T3/E3 Interfaces
- How to Configure T3/E3 Interfaces
- Circuit Emulation Service over Packet-Switched Network
- Troubleshooting T3/E3 Controllers
- Associated Commands
- Additional References for Configuring 48-Port T3/E3 CEM Interface Module
Information About T3/E3 Interfaces
The following sections provide information about T3/E3 interfaces.
- Overview of T3/E3 Interfaces
- Benefits of T3/E3 Interfaces
- Restrictions for Configuring T3/E3 Interfaces
Overview of T3/E3 Interfaces
The T3/E3 interface supports two modes, clear channel mode and channelized mode. You can enable 28T1/16E1 only in channelized mode. Each T1/E1 channel can be configured to use the entire T1/E1 bandwidth for data transmission.
Benefits of T3/E3 Interfaces
The following are the benefits of T3/E3 interfaces:
Restrictions for Configuring T3/E3 Interfaces
-
You can configure CEM to support serial interface configuration.
-
The supported BERT patterns are 1s, 2^11, 2^15, 2^20-O153, 2^20-QRSS and 2^23.
-
DS0 level Channelization is not supported.
-
The g832 framing mode is not supported.
-
Far end performance monitors (PM) counters are not supported.
-
Loopback remote is not supported.
How to Configure T3/E3 Interfaces
This section provides the information about how to configure a T3/E3 interface. The T3/E3 interface can be configured as clear channel mode or channelized mode.
- Setting the Port
- Configuring the Controller of Clear Channel T3/E3 Interfaces
- Configuring the Controller of Channelized T3/T1 or E3/E1 Interfaces
- Configuring Framed Structure-Agnostic TDM over Packet (SAToP)
- Configuring SAToP - Clear Channel T3/E3 Interfaces
- Configuring SAToP - Channelized T3/T1 Interfaces
- Configuring SAToP - Channelized E3/E1 Interfaces
- Configuring MDL for T3 Interfaces
- Performance Monitoring
Setting the Port
To enable the port on the T3/E3 interface module, follow these steps:
enable configure terminal controller mediatype 0/4/0 mode t3/e3 exit
Configuring the Controller of Clear Channel T3/E3 Interfaces
Before You Begin
When the clear channel T3/E3 interface is used for the first time, the running configuration does not show the T3/E3 controller. You can use the show platform command to check whether the chassis recognizes the T3/E3 port and initializes the card correctly. After the port is configured for the slot, the respective controller appears in the running configuration and you can configure the clear channel T3/E3 interface.
Perform this task to configure clear channel controller as T3.
enable configure terminal controller t3 0/4/40 no channelized clock source line no shut exit
Note | By default, the T3 controller is in C-Bit framing mode. To configure CEM, the framing mode must be set to unframed. |
Perform this task to configure clear channel controller as E3.
enable configure terminal controller e3 0/4/40 clock source line no shut exit
- Verifying Controller Configuration of Clear Channel T3 Interfaces
- Verifying Controller Configuration of Clear Channel E3 Interfaces
Verifying Controller Configuration of Clear Channel T3 Interfaces
Router# show controllers t3 0/4/40
T3 0/4/40 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Clear Channel T3
No alarms detected.
Framing is Unframed, Line Code is B3ZS, Cablelength is 224
Clock Source is internal
Equipment customer loopback
Data in current interval (320 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
Total Data (last 1 2 minute intervals):
1 Line Code Violations, 0 P-bit Coding Violation,
0 C-bit Coding Violation, 7 P-bit Err Secs,
7 P-bit Severely Err Secs, 0 Severely Err Framing Secs,
98 Unavailable Secs, 14 Line Errored Secs,
7 C-bit Errored Secs, 7 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
Verifying Controller Configuration of Clear Channel E3 Interfaces
Router# show controllers e3 0/4/40
E3 0/4/40 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Clear Channel e3
No alarms detected.
Framing is Unframed, Line Code is B3ZS, Cablelength is 224
Clock Source is internal
Equipment customer loopback
Data in current interval (320 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
Total Data (last 1 2 minute intervals):
1 Line Code Violations, 0 P-bit Coding Violation,
0 C-bit Coding Violation, 7 P-bit Err Secs,
7 P-bit Severely Err Secs, 0 Severely Err Framing Secs,
98 Unavailable Secs, 14 Line Errored Secs,
7 C-bit Errored Secs, 7 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
Configuring the Controller of Channelized T3/T1 or E3/E1 Interfaces
Before You Begin
When the channelized T3/T1 or E3/E1 interface is used for the first time, the running configuration does not show the T3/E3 controller. You can use the show platform command to check if the chassis recognizes the T3/E3 port and initializes the card properly. After the port is configured for the slot, the respective controller appears in the running configuration and you can configure the channelized T3/T1 or E3/E1 interface.
Perform this task to configure channelized controller as T3/T1.
enable configure terminal controller t3 0/4/46 channelized clock source line no shut exit
Note | The channelized mode is the default mode for T3 interface. |
Perform this task to configure channelized controller as E3/E1.
enable configure terminal controller e3 0/4/46 channelized mode e1 framing g751 exit
Note | The clear channel mode is the default mode for E3 interface. |
- Verifying the Controller Configuration of Channelized T3/T1 Interfaces
- Verifying the Controller Configuration of Channelized E3/E1 Interfaces
Verifying the Controller Configuration of Channelized T3/T1 Interfaces
Router# show controllers t3 0/4/46
T3 0/4/46 is down.
Hardware is NNCS4200-48T3E3-CE
Applique type is Channelized T3/T1
Receiver has loss of signal.
MDL transmission is disabled
FEAC code received: No code is being received
Framing is C-BIT Parity, Line Code is B3ZS, Cablelength Short less than 225ft
BER thresholds: SF = 10e-10 SD = 10e-10
Clock Source is line
Equipment customer loopback
Data in current interval (730 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, 730 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
Data in Interval 1:
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, 900 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
Verifying the Controller Configuration of Channelized E3/E1 Interfaces
Router# show controllers e3 0/4/46
E3 0/4/46 is down.
Hardware is NNCS4200-48T3E3-CE
Applique type is Channelized E3/E1
No alarms detected.
Framing is E3 G751, Line Code is HDB3, Cablelength Short less than 225ft
BER thresholds: SF = 10e-5 SD = 10e-5
Clock Source is internal, National Bit 0
Equipment customer loopback
Data in current interval (770 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
Data in Interval 1:
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, 899 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
Total Data (last 1 15 minute intervals):
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, 899 Line Errored Secs,
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
Configuring Framed Structure-Agnostic TDM over Packet (SAToP)
Framed Structure-Agnostic TDM over Packet (SAToP) is required to detect an incoming AIS alarm in the DS3 SAToP mode. An AIS alarm indicates a problem with the line that is upstream from the DS3 network element connected to the interface.Framed SAToP further helps in the detection of a packet drop.
To configure framed SAToP:
enable configure terminal controller t3/e3 0/0/0 cem-group 0 framed exit interface CEM 0/0/0 cem 0 xconnect 10.10.10.10 200 encapsulation mpls exit
Configuring SAToP - Clear Channel T3/E3 Interfaces
Before You Begin
Before Structure-Agnostic TDM over Packet (SAToP) is configured, the controller of clear channel T3 interface must be configured.
enable configure terminal controller t3 0/4/40 no channelized cem-group 0 unframed interface CEM 0/4/40 cem 0 xconnect 10.10.2.2 204 encapsulation mpls exit
Before You Begin
Before SAToP is configured, the controller of clear channel E3 interface must be configured.
enable configure terminal controller e3 0/4/40 cem-group 0 unframed interface CEM 0/4/40 cem 0 xconnect 10.10.2.2 204 encapsulation mpls exit
Verifying CEM Configuration of Clear Channel T3/E3 Interfaces for SAToP
Router# show run interface cem 0/4/40 Current configuration : 96 bytes ! interface CEM0/4/40 no ip address cem 0 xconnect 10.10.2.2 204 encapsulation mpls ! end
Router# show cem circuit int cem 0/4/40 CEM0/4/40, ID: 0, Line: UP, Admin: UP, Ckt: ACTIVE Controller state: down, T3/E3 state: up Idle Pattern: 0xFF, Idle CAS: 0x8 Dejitter: 5 (In use: 0) Payload Size: 1024 Framing: Unframed CEM Defects Set None Signalling: No CAS RTP: No RTP Ingress Pkts: 1321577 Dropped: 0 Egress Pkts: 1321577 Dropped: 0 CEM Counter Details Input Errors: 0 Output Errors: 0 Pkts Missing: 0 Pkts Reordered: 0 Misorder Drops: 0 JitterBuf Underrun: 0 Error Sec: 0 Severly Errored Sec: 0 Unavailable Sec: 0 Failure Counts: 0 Pkts Malformed: 0 JitterBuf Overrun: 0
Configuring SAToP - Channelized T3/T1 Interfaces
Before You Begin
Before SAToP is configured, the controller of channelized T3/T1 interface must be configured.
enable configure terminal controller t3 0/4/12 channelized t1 1 cem-group 0 unframed interface CEM 0/4/12 no shut cem 0 xconnect 10.10.2.2 204 encapsulation mpls exit
Verifying the CEM Configuration of Channelized T3/T1 Interfaces
Router# show run controller t3 0/4/46 Current configuration : 109 bytes ! Controller T3 0/4/46 framing c-bit cablelength short t1 1 cem-group 0 unframed end
Router# show cem circuit int cem 0/4/46 CEM0/4/46, ID: 1, Line: UP, Admin: UP, Ckt: ACTIVE Controller state: up, T1/E1 state: up Idle Pattern: 0xFF, Idle CAS: 0x8 Dejitter: 5 (In use: 0) Payload Size: 192 Framing: Unframed CEM Defects Set None Signalling: No CAS RTP: No RTP Ingress Pkts: 105043259 Dropped: 0 Egress Pkts: 105043387 Dropped: 0 CEM Counter Details Input Errors: 0 Output Errors: 0 Pkts Missing: 0 Pkts Reordered: 0 Misorder Drops: 0 JitterBuf Underrun: 32 Error Sec: 0 Severly Errored Sec: 0 Unavailable Sec: 0 Failure Counts: 0 Pkts Malformed: 0 JitterBuf Overrun: 0 - - - CEM0/4/46, ID: 28, Line: UP, Admin: UP, Ckt: ACTIVE Controller state: up, T1/E1 state: up Idle Pattern: 0xFF, Idle CAS: 0x8 Dejitter: 5 (In use: 0) Payload Size: 192 Framing: Unframed CEM Defects Set None Signalling: No CAS RTP: No RTP Ingress Pkts: 136303 Dropped: 0 Egress Pkts: 0 Dropped: 0 CEM Counter Details Input Errors: 0 Output Errors: 0 Pkts Missing: 135682 Pkts Reordered: 0 Misorder Drops: 0 JitterBuf Underrun: 137649 Error Sec: 0 Severly Errored Sec: 0 Unavailable Sec: 0 Failure Counts: 135 Pkts Malformed: 0 JitterBuf Overrun: 0
Configuring SAToP - Channelized E3/E1 Interfaces
Before You Begin
Before SAToP is configured, the controller of channelized E3/E1 interfaces must be configured.
enable configure terminal controller e3 0/4/46 channelized modee1 e1 1 cem-group 0 unframed interface CEM 0/4/46 no shut cem 0 xconnect 10.10.2.2 204 encapsulation mpls exit
Verifying the CEM Configuration of Channelized E3/E1 Interfaces
Router# show run controller e3 0/4/46 Current configuration : 109 bytes ! Controller E3 0/4/46 framing c-bit clock source line cablelength short t1 1 cem-group 0 unframed end
Router# show cem circuit int cem 0/4/46 CEM0/4/46, ID: 1, Line: UP, Admin: UP, Ckt: ACTIVE Controller state: up, T1/E1 state: up Idle Pattern: 0xFF, Idle CAS: 0x8 Dejitter: 5 (In use: 0) Payload Size: 256 Framing: Unframed CEM Defects Set None Signalling: No CAS RTP: No RTP Ingress Pkts: 105043259 Dropped: 0 Egress Pkts: 105043387 Dropped: 0 CEM Counter Details Input Errors: 0 Output Errors: 0 Pkts Missing: 0 Pkts Reordered: 0 Misorder Drops: 0 JitterBuf Underrun: 0 Error Sec: 0 Severly Errored Sec: 0 Unavailable Sec: 0 Failure Counts: 0 Pkts Malformed: 0 JitterBuf Overrun: 0
Configuring MDL for T3 Interfaces
Maintenance Data Link (MDL) messages are used to communicate identification information between local and remote ports. The MDL message includes:
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Equipment Identification Code (EIC)
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Location Identification Code (LIC)
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Frame Identification Code (FIC)
-
Unit
-
Path Facility Identification (PFI)
-
Port Number
-
Generator Identification Number
Note | MDL messages are only supported when the T3 framing is set for C-bit parity. |
The no mdl command removes the configuration of mdl messages.
Note | MDL configuration is not supported for E3 interfaces. |
Configuring MDL for Path Transmission
enable configure terminal controller t3 0/0/17 framing c-bit mdl string eic beic mdl string lic beic mdl string fic bfix mdl string unit bunit mdl string pfi bpfi mdl transmit path
Verifying MDL for Path Transmission Configuration
For PE1 Configuration:
Use the show controller command to display the verification of MDL path transmission configuration.
Router# show controllers t3 0/0/17
T3 0/0/17 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized T3/T1
No alarms detected.
MDL transmission is enabled
EIC: beic, LIC: beic, FIC: bfix, UNIT: bunit
Path FI: bpfi
FEAC code received: DS3 Out-Of-Frame
Framing is C-BIT Parity, Line Code is B3ZS, Cablelength Short less than 225ft
Clock Source is internal
Equipment customer loopback
Data in current interval (690 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
For PE2 Configuration:
Use the show controller command to display the verification of MDL path transmission configuration.
Router# show controllers t3 0/0/18
T3 0/0/18 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized T3/T1
No alarms detected.
MDL transmission is disabled
Far-End MDL Information Received
EIC: beic, LIC: beic, FIC: bfix, UNIT: bunit
Path FI: bpfi
FEAC code received: DS3 Out-Of-Frame
Framing is C-BIT Parity, Line Code is B3ZS, Cablelength Short less than 225ft
Clock Source is internal
Equipment customer loopback
Data in current interval (710 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
Configuring MDL for Idle Signal
enable configure terminal controller T3 0/0/17 framing c-bit mdl string eic beic mdl string lic beic mdl string fic bfix mdl string unit bunit mdl string port bport mdl transmit idle-signal
Verifying MDL for Idle Signal Configuration
For PE1 Configuration:
Use the show controller command to display the verification of MDL for idle signal configuration.
Router# show controllers t3 0/0/17
T3 0/0/17 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized T3/T1
No alarms detected.
MDL transmission is enabled
EIC: beic, LIC: beic, FIC: bfix, UNIT: bunit
Idle Signal PORT_NO: bport
FEAC code received: DS3 Out-Of-Frame
Framing is C-BIT Parity, Line Code is B3ZS, Cablelength Short less than 225ft
Clock Source is internal
Equipment customer loopback
Data in current interval (40 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
For PE2 Configuration:
Use the show controller command to display the verification of MDL for idle signal configuration.
Router# show controllers t3 0/0/18
T3 0/0/18 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized T3/T1
No alarms detected.
MDL transmission is disabled
Far-End MDL Information Received
EIC: beic, LIC: beic, FIC: bfix, UNIT: bunit
Idle Signal PORT_NO: bport
FEAC code received: DS3 Out-Of-Frame
Framing is C-BIT Parity, Line Code is B3ZS, Cablelength Short less than 225ft
Clock Source is internal
Equipment customer loopback
Data in current interval (50 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
Configuring MDL for Test Signal
enable configure terminal controller t3 0/0/17 framing c-bit mdl string eic beic mdl string lic beic mdl string fic bfix mdl string unit bunit mdl string generator bgen mdl transmit test-signal
Verifying MDL for Test Signal Configuration
For PE1 Configuration:
Use the show controller command to display the verification of MDL for test signal configuration.
Router# show controllers t3 0/0/17
T3 0/0/17 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized T3/T1
No alarms detected.
MDL transmission is enabled
EIC: beic, LIC: beic, FIC: bfix, UNIT: bunit
Test Signal GEN_NO: bgen
FEAC code received: DS3 Out-Of-Frame
Framing is C-BIT Parity, Line Code is B3ZS, Cablelength Short less than 225ft
Clock Source is internal
Equipment customer loopback
Data in current interval (150 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
For PE2 Configuration:
Use the show controller command to display the verification of MDL for test signal configuration.
Router# show controllers t3 0/0/18
T3 0/0/18 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized T3/T1
No alarms detected.
MDL transmission is disabled
Far-End MDL Information Received
EIC: beic, LIC: beic, FIC: bfix, UNIT: bunit
Test Signal GEN_NO: bgen
FEAC code received: DS3 Out-Of-Frame
Framing is C-BIT Parity, Line Code is B3ZS, Cablelength Short less than 225ft
Clock Source is internal
Equipment customer loopback
Data in current interval (160 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
Performance Monitoring
You can view the statistics or error count generated on the TDM lines for T3 interfaces.
enable configure terminal controller MediaType 0/0/0 mode t3 controller t3 0/0/0 framing c-bit cablelength long 224-450 ft short 0-224 ft controller MediaType 0/0/15 mode t3 controller T3 0/0/15 framing c-bit cablelength short
The performance monitoring result is displayed using the show controller command:
T3 0/7/1 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized T3/T1
No alarms detected.
MDL transmission is disabled
FEAC code received: No code is being received
Framing is C-BIT Parity, Line Code is B3ZS, Cablelength Short less than 225ft
BER thresholds: SF = 10e-10 SD = 10e-10
Clock Source is internal
Equipment customer loopback
Data in current interval (700 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
Total Data (last 13 15 minute intervals):
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
Use Case 1
T1 1 is up No alarms detected. Framing is unframed, Clock Source is Internal Data in current interval (450 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs Other Far End Counters: 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, 0 Stuffed 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs Other Far End Counters: 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, 0 Stuffed Secs Data in Interval 2: 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs Other Far End Counters: 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, 0 Stuffed Secs Total Data (last 2 15 minute intervals): 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs
Use Case 2
T1 28 is up No alarms detected. Framing is unframed, Clock Source is Internal Data in current interval (230 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs Other Far End Counters: 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, 0 Stuffed 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs Other Far End Counters: 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, 0 Stuffed Secs Data in Interval 2: 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs Other Far End Counters: 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, 0 Stuffed Secs Data in Interval 3: 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs Other Far End Counters: 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, 0 Stuffed Secs Data in Interval 4: 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs Other Far End Counters: 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, 0 Stuffed Secs Total Data (last 4 15 minute intervals): 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, 0 Stuffed Secs 0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs
The complete output for the show controller command is:
Router# show controllers t3 0/0/0
T3 0/0/0 is down.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized T3/T1
Receiver has loss of signal.
Framing is Unknown, Line Code is B3ZS, Cablelength Short less than 225ft
Clock Source is internal
Equipment customer loopback
Data in current interval (290 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, 289 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
Data in Interval 1:
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, 900 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
Data in Interval 2:
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, 369 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
Total Data (last 2 15 minute intervals):
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, 1269 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
Circuit Emulation Service over Packet-Switched Network
CESoPSN is a method for encapsulating structured (NxDS0) TDM signals as pseudowires over packet switching networks.
- Restrictions for CESoPSN on T3/E3 Controller
- Configuring CESoPSN on T3 or E3 Interfaces
- Verifying CESoPSN Configurations on E3 Interface
Restrictions for CESoPSN on T3/E3 Controller
-
The maximum number of CEM interface supported is 1344.
-
The change of framing from C-bit to M13 is not supported on the T3 interface, where as the change of framing from g751 to g832 is supported on the E3 interface.
-
CT3-E1 and CE3-T1 is not supported and only CT3-T1 and CE3-E1 is supported.
-
The DS0 loopback is not supported on the T3 interface.
-
The alarm forwarding is not supported on the T3 interface.
-
The card protection is not supported on the T3 interface.
Configuring CESoPSN on T3 or E3 Interfaces
Before You Begin
Create CEM group for channelized T3 interface, use the following commands:
enable configure terminal controller MediaType 0/5/1 mode t3 channelized controller T3 0/5/1 framing c-bit cablelength short t1 1 cem-group 1 timeslots 10 exit
Create CEM group for channelized E3 interface, use the following commands:
enable configure terminal controller MediaType 0/5/1 mode e3 channelized mode e1 controller e3 0/14/0 channelized framing c-bit cablelength short e1 1 cem-group 0 timeslots 10 exit
int cem 0/14/0 cem 0 xconnect 1.1.1.1 9999 encapsulation mpls
sh xconnect all | i 9999 UP pri ac CE0/14/0:0(CESoPSN Basic) UP mpls 1.1.1.1:9999 UP
Verifying CESoPSN Configurations on E3 Interface
Router# show controllers e3 0/14/2
E3 0/14/2 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized E3/E1
No alarms detected.
Framing is E3 G751, Line Code is HDB3, Cablelength Short less than 225ft
BER thresholds: SF = 10e-10 SD = 10e-10
Clock Source is internal, National Bit 0
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
E3 0/14/2 E1 1 is up
timeslots: 1-20
No alarms detected.
Framing is crc4, Clock Source is Internal, National bits are 0x1F.
Data in current interval (0 seconds elapsed):
router# sh mpls l2 vc interface cem 0/14/0 0 Local intf Local circuit Dest address VC ID Status ------------- -------------------------- --------------- ---------- ---------- CE0/14/0 CESoPSN Basic 0 1.1.1.1 9999 UP
router# sh mpls l2transport vc 9090 detail
Local interface: CE0/14/2 up, line protocol up, CESoPSN Basic 0 up
Destination address: 1.1.1.1, VC ID: 9090, VC status: up
Output interface: Te0/12/0, imposed label stack {130}
Preferred path: not configured
Default path: active
Next hop: 123.123.123.1
Create time: 00:18:44, last status change time: 00:18:30
Last label FSM state change time: 00:18:30
Signaling protocol: LDP, peer 1.1.1.1:0 up
Targeted Hello: 2.2.2.2(LDP Id) -> 1.1.1.1, LDP is UP
Graceful restart: not configured and not enabled
Non stop routing: configured and not enabled
Status TLV support (local/remote) : enabled/supported
LDP route watch : enabled
Label/status state machine : established, LruRru
Last local dataplane status rcvd: No fault
Last BFD dataplane status rcvd: Not sent
Last BFD peer monitor status rcvd: No fault
Last local AC circuit status rcvd: No fault
Last local AC circuit status sent: No fault
Last local PW i/f circ status rcvd: No fault
Last local LDP TLV status sent: No fault
Last remote LDP TLV status rcvd: No fault
Last remote LDP ADJ status rcvd: No fault
MPLS VC labels: local 130, remote 130
Group ID: local 207, remote 220
MTU: local 0, remote 0
Remote interface description:
Sequencing: receive disabled, send disabled
Control Word: On (configured: autosense)
SSO Descriptor: 1.1.1.1/9090, local label: 130
Dataplane:
SSM segment/switch IDs: 1237749/557811 (used), PWID: 114
VC statistics:
transit packet totals: receive 0, send 0
transit byte totals: receive 0, send 0
transit packet drops: receive 0, seq error 0, send 0
ASR907# sh cem circuit interface cem 0/14/2 0
CEM0/14/2, ID: 0, Line: UP, Admin: UP, Ckt: ACTIVE
Mode :Channelized-E1, E1: 1, CEM Mode: E1-CESoP
Controller state: up, T1/E1 state: up
Idle Pattern: 0xFF, Idle CAS: 0x8
Dejitter: 5 (In use: 0)
Payload Size: 160
Framing: Framed (DS0 channels: 1-20)
CEM Defects Set
None
Signalling: No CAS
RTP: No RTP
Ingress Pkts: 24005 Dropped: 0
Egress Pkts: 24005 Dropped: 0
CEM Counter Details
Input Errors: 0 Output Errors: 0
Pkts Missing: 0 Pkts Reordered: 0
Misorder Drops: 0 JitterBuf Underrun: 0
Error Sec: 0 Severly Errored Sec: 0
Unavailable Sec: 0 Failure Counts: 0
Pkts Malformed: 0 JitterBuf Overrun: 0
Generated Lbits: 0 Received Lbits: 0
Generated Rbits: 0 Received Rbits: 0
Generated Mbits: 0 Received Mbits: 0
Troubleshooting T3/E3 Controllers
You can use the following methods to troubleshoot the T3/E3 controllers on the chassis:
- Running Bit Error Rate Testing for SAToP
- Bit Error Rate Testing for CESoPSN
- Loopback on T3/E3 Interfaces
- Loopback Remote on T1/T3 Interfaces
Running Bit Error Rate Testing for SAToP
Bit error rate testing (BERT) is supported on T3/E3 interfaces. You can run 16 BERTs at a time. The test can be either of the T1/E1 or the T3/E3 interface.
The interface contains on board BERT circuitry. With this, the interface software can send and detect a programmable pattern that is compliant with CCITT/ITU O.151, O.152, O.153 pseudo-random, and repetitive test patterns. BERTs allow you to test cables and signal problems in the field.
When running a BERT test, your system must receive the same pattern that it is transmitting. So, ensure the two common options are available:
-
Use of a loopback somewhere in the link or network
-
Configuration of a remote testing equipment to transmit the same BERT test pattern at the same time
Table 1 lists different BERT keywords and their descriptions.
|
Keyword |
Description |
|---|---|
|
0s |
Repeating pattern of zeros (...000...) |
|
1s |
Repeating pattern of ones (...111...) |
|
2^11 |
Pseudo-random test pattern that is 2,048 bits in length. |
|
2^15 |
Pseudo-random O.151 test pattern that is 32,768 bits in length. |
|
2^20-O153 |
Pseudo-random O.153 test pattern that is 1,048,575 bits in length. |
|
2^20-QRSS |
Pseudo-random QRSS O.151 test pattern that is 1,048,575 bits in length. |
|
2^23 |
Pseudo-random 0.151 test pattern that is 8,388,607 bits in length. |
Both the total number of bits and the error bits received are available for analysis. You can select the testing period from 1 minute to 24 hours and you can also retrieve the error statistics anytime during the BERT test.
BERT is supported in two directions:
Note | When the BERT is configured towards the system direction, it internally loopbacks the TDM side. |
Configuring BERT for Clear and Channelized T3/E3 Interfaces
Before You Begin
Before you configure BERT for clear channel T3/E3 interfaces, ensure that controller and CEM are configured.
enable configure terminal controller t3/e3 0/0/1 no channelized bert pattern 0s interval 30 direction line exit
enable configure terminal controller t3/e3 0/0/1 channelized t1/e1 1 bert pattern 0s interval 30 direction line exit
Note | To terminate a BERT test during the specified test period, use the no bert command. |
Verifying the BERT Configuration for T3/E3 Interfaces
Router# show controllers t3/e3 0/4/40 | sec BERT
BERT test result (running)
Test Pattern : 2^15, Status : Not Sync, Sync Detected : 0
DSX3 BERT direction : Line
Interval : 5 minute(s), Time Remain : 3 minute(s)
Bit Errors (since BERT started): 0 bits,
Bits Received (since BERT started): 0 Kbits
Bit Errors (since last sync): 0 bits
Bits Received (since last sync): 0 Kbits
Router# show controllers t3/e3 0/4/40
T1/E1 1 is up
No alarms detected.
Framing is unframed, Clock Source is Internal
BERT test result (running)
Test Pattern : 2^23, Status : Not Sync, Sync Detected : 0
DSX1 BERT direction : Line
Interval : 5 minute(s), Time Remain : 4 minute(s)
Bit Errors (since BERT started): 0 bits,
Bits Received (since BERT started): 0 Kbits
Bit Errors (since last sync): 0 bits
Bits Received (since last sync): 0 Kbits
Bit Error Rate Testing for CESoPSN
Bit-Error Rate Testing (BERT) is used for analyzing quality and problem resolution of digital transmission equipment. BERT tests the quality of an interface by directly comparing a pseudorandom or repetitive test pattern with an identical locally generated test pattern. BERT is supported at the TDM side and pseudowire side. BERT can be used either at NxDS0 or DS1 but not together.
BERT is supported on following controllers:
-
T1NxDS0, DS1
-
T3NxDS0, DS1 (channelised), clear channel DS3.
-
OCXNxDS0, DS1 (channelised),DS3(channelised), clear channel DS3,STS1,STS-nc,VT-1.5,VT1.5 T1
- Restrictions for BERT in CESoPSN
- Configuring BERT for Clear and Channelized T3/E3 Interfaces for CESoPSN
- Verifying BERT Configuration for CESoPSN on T3/E3 Interface
Restrictions for BERT in CESoPSN
-
The Cisco ASR 900 Series Router supports only the following BERT patterns: 2^11, 2^15, 2^20-O153, and 2^20-QRSS.
-
For the line side BERT to be configured at timeslot level, the first CEM should be configured and it should be present at the same timeslot level where the BERT is configured.
-
The system side BERT is not supported on partial timeslots. For the system side BERT, use full timeslots.
Configuring BERT for Clear and Channelized T3/E3 Interfaces for CESoPSN
Before You Begin
Before you configure BERT for clear channel T3/E3 interfaces, ensure that the controller and CEM are configured.
To run a BERT on the T3 interface, use the following commands:
configure terminal controller t3 0/5/0 t1 1 bert timeslots 1 pattern 2^15 interval 1
To run a BERT on the E3 interface, use the following commands:
config terminal controller e3 0/5/0 e1 1 bert timeslots 1 pattern 2^15 interval 1
Note | To terminate a BERT test during the specified test period, use the no bert command. |
You can view the results of a BERT test at the following points of time:
Verifying BERT Configuration for CESoPSN on T3/E3 Interface
Router# show controllers t3 0/5/0
T3 0/5/0 is up.
Hardware is NCS4200-48T3E3-CE
Applique type is Channelized T3/T1
No alarms detected.
MDL transmission is disabled
FEAC code received: No code is being received
Framing is C-BIT Parity, Line Code is B3ZS, Cablelength Short less than 225ft
BER thresholds: SF = 10e-3 SD = 10e-6
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
T1 1 is down
timeslots: 1-24
FDL per AT&T 54016 spec.
Receiver has remote alarm.
Framing is ESF, Clock Source is Recovered 1
BERT running on timeslots 1,
BERT test result (running)
Test Pattern : 2^15, Status : Sync, Sync Detected : 0
Interval : 0 minute(s), Time Remain : 00:00:37
Bit Errors (since BERT started): 0 bits,
Bits Received (since BERT started): 137 Kbits
Bit Errors (since last sync): 0 bits
Bits Received (since last sync): 137 Kbits
Direction : Line
Data in current interval (0 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, 0 Stuffed Secs
0 Near-end path failures, 0 Far-end path failures, 0 SEF/AIS Secs
Other Far End Counters:
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, 0 Stuffed Secs
You can view the results of a BERT test at the following times:
Loopback on T3/E3 Interfaces
Loopback Description
You can use the following loopback on the clear and channelized T3/T1 or E3/E1 interfaces.
|
Loopback |
Description |
|---|---|
|
loopback local |
Loops the transmitting signal back to the receiver. |
|
loopback network line |
Loops the incoming signal back to the interface using the line loopback mode of the framer. The framer does not reclock or reframe the incoming data. All incoming data is received by the interface driver. |
Configuring Loopback for T3/E3 Interfaces
enable configure terminal controller t3/e3 0/0/1 loopback local exit
enable configure terminal controller t3/e3 0/0/1 loopback network line exit
enable configure terminal controller t3/t1 0/0/1 channelized t1/e1 1 loopback local exit
enable configure terminal controller t3/e3 0/0/1 channelized t1/e1 1 loopback network line exit
Note | To remove a loopback, use the no loopback command. |
Loopback Remote on T1/T3 Interfaces
The remote loopback configuration attempts to put the far-end T1 or T3 into a loopback.
The remote loopback setting loops back the far-end at line or payload, using IBOC (inband bit-orientated CDE) or the ESF loopback codes to communicate the request to the far-end.
- Restrictions for Loopback Remote
- Configuring Loopback Remote on T1/T3 Interface Module
- Verifying the Loopback Remote Configuration on T1/T3 Interfaces
Restrictions for Loopback Remote
E1 and E3 loopback remote are not supported.
Configuring Loopback Remote on T1/T3 Interface Module
enable
configure terminal
controller t3 0/0/1
loopback remote {line | payload}
exit
To set T1 loopback remote iboc fac1/fac2/csu for DS3, perform the following tasks in global configuration mode:
enable
configure terminal
controller t3 0/0/1
t1 1 loopback remote iboc {fac1 | fac2 | csu}
exit
To set T1 loopback remote iboc esf line csu/esf payload for DS3, perform the following tasks in global configuration mode:
enable
configure terminal
controller t3 0/0/1
t1 1 loopback remote iboc esf {line csu | payload}
Verifying the Loopback Remote Configuration on T1/T3 Interfaces
Use the following command to check the loopback remote configuration on a T3 interface module:
router# show running-config | sec 0/0/1 controller MediaType 0/0/1 mode t3 controller T3 0/0/1 threshold sd-ber 6 threshold sf-ber 3 no channelized framing c-bit cablelength short loopback remote line
Use the following command to check the loopback remote configuration on a T1 interface module:
Router#show run | sec 0/4/15 controller MediaType 0/4/15 mode t3 controller T3 0/4/15 threshold sd-ber 6 threshold sf-ber 3 framing c-bit cablelength short t1 1 Loopback remote iboc fac1
Use the following command to verify the loopback remote configuration on a T3 interface module:
router(config-controller)# show controller t3 0/0/1 T3 0/0/1 is up. (Configured for Remotely Looped) Currently in Remotely Line Looped Hardware is NCS4200-48T3E3-CE Applique type is Subrate T3 Receiver has no alarms. MDL transmission is disabled
Use the following command to verify the loopback remote configuration on a T1 interface module:
Router#show controller t3 0/4/15 | b T1 1 T1 1 is up timeslots: FDL per AT&T 54016 spec. Configured for NIU FAC1 Line Loopback with IBOC Currently in Inband Remotely Line Looped Receiver has no alarms. Framing is ESF, Clock Source is Internal
Associated Commands
The commands used to configure the interfaces.
|
Commands |
URL |
|---|---|
|
controller mediatype |
|
|
mode t3/e3 |
|
|
controller t1 |
|
|
controller t3 |
|
|
controller e3 |
|
|
clock source |
|
|
channelized |
|
|
cem |
|
|
cem-group |
|
|
xconnect |
|
|
t1/e1 cem-group |
|
|
payload-size dejitter-buffer |
|
|
bert pattern |
|
|
loopback |
|
|
t1/e1 loopback |
Additional References for Configuring 48-Port T3/E3 CEM Interface Module
Related Documents
|
Related Topic |
Document Title |
|---|---|
|
Cisco IOS commands |
Standards and RFCs
|
Standard/RFC |
Title |
|---|---|
|
— |
There are no standards and RFCs for this feature. |
MIBs
|
MIB |
MIBs Link |
|---|---|
|
— |
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: |
Technical Assistance
|
Description |
Link |
|---|---|
|
The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies. To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds. Access to most tools on the Cisco Support website requires a Cisco.com user ID and password. |
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