To display information about T3 links and to display hardware and software driver information for the T3 controller, use
the
showcontrollerst3 command in privileged EXEC mode.
Cisco 2650XM, Cisco 2651XM, Cisco 2691, Cisco 3660 Series, Cisco 3725, and Cisco 3745 Routers
show controllers t3 slot/ port [brief | tabular]
Cisco 7200 Series Routers
show controllers t3 [bay/ port [/ t1-channel]] [brief | errors | tabular | remote performance [brief | tabular]]
Cisco 7500 Series Routers
show controllers t3 [slot/ bay/ port [/ t1-channel]] [brief | errors | tabular | remote performance [brief | tabular]]
Cisco AS5800 Access Servers and Cisco 10000 Series Routers
show controllers t3 dial-shelf/ slot/ t3-port
Cisco Series
show controllers t3 [slot/ bay/ port]
Cisco Series
show controllers t3 [slot/ bay/ port path]
Note
|
This is applicable to 48-Port T3/E3 CEM Interface Module and 1 port OC-48/STM-16 or 4 port OC-12/OC-3 / STM-1/STM-4 + 12 port
T1/E1 + 4 port T3/E3 CEM Interface Module.
|
Syntax Description
slot
|
Slot number. Refer to the appropriate hardware manual for slot information.
|
/
port
|
Port number. Refer to the appropriate hardware manual for port information.
|
slot
/
bay
/
port
|
Slot number, interface module number in which the slot is inserted, and port number (Cisco series routers).
|
/
bay
|
(Optional) The port adaptor bay number. Refer to the appropriate hardware manual for bay information
|
/
t1-channel
|
(Optional) Number from 1 to 28 that represents the T1 channel for the Channelized T3 Interface Processor (CT3IP) on Cisco
7200 series and Cisco 5200 series routers.
|
dial-shelf
|
Dial shelf chassis in the Cisco AS5800 access server that contains the CT3 interface card.
|
/
slot
|
Location of the CT3 interface card in the dial shelf chassis.
|
/
t3-port
|
T3 port number.
|
brief
|
(Optional) Displays a subset of information.
|
errors
|
(Optional) Displays a history of alarm events that causes a T3 controller or a T1 controller of a T3 to transition from an
Up state to a Down state. The history size is 18 events.
|
tabular
|
(Optional) Displays information in a tabular format.
|
remote
performance
|
(Optional) Displays the far-end ANSI performance monitor information when enabled on the T1 channel with the
t1fdlansi controller configuration command.
|
path
|
Defines the path (sts-1/vc3) information to which the DS3 (T3 or E3) is mapped.
|
Command Modes
Privileged EXEC (#)
Command History
Release
|
Modification
|
11.3
|
This command was introduced.
|
12.0(3)T
|
This command was implemented on the Cisco AS5800 access server.
|
12.2(11)YT
|
This command was integrated into Cisco IOS Release 12.2(11)YT and implemented on the following platforms: Cisco 2650XM, Cisco
2651XM, Cisco 2691, Cisco 3660 series, Cisco 3725, and Cisco 3745 routers.
|
12.2(15)T
|
This command was integrated into Cisco IOS Release 12.2(15)T.
|
12.2(19c)
|
This command was modified to display error throttling and alarm conditions that cause the T3 controller to enter a failure
state.
|
12.2(33)SRA
|
This command was integrated into Cisco IOS Release 12.2(33)SRA.
|
12.2SX
|
This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends
on your feature set, platform, and platform hardware.
|
12.2(31)SB
|
This command was integrated in Cisco IOS Release 12.2(31)SB.
|
12.2(33)SB
|
This command’s behavior was modified on the Cisco 10000 series router for the PRE3 and PRE4.
|
XE Everest 16.5.1
|
This command was implemented on the Cisco ASR 900 Series Routers and Cisco NCS 4200 Series.
|
XE Fuji 16.8.x
|
This command output was modified on the Cisco Series Routers to display far-end counters for performance monitoring.
|
XE Fuji 16.8.x
|
The path keyword is introduced in Cisco IOS XE Fuji 16.8.x release for Cisco ASR 900 Series Routers and Cisco NCS 4200 Series
Routers for 48-Port T3/E3 CEM Interface Module and 1 port OC-48/STM-16 or 4 port OC-12/OC-3 / STM-1/STM-4 + 12 port T1/E1
+ 4 port T3/E3 CEM Interface Module.
|
Usage Guidelines
Cisco 7500 Series Routers
This command displays controller status that is specific to the controller hardware. The information displayed is generally
useful for diagnostic tasks performed by technical support personnel only.
When you use the errors keyword, this command displays history that identifies which alarm events caused a T3 or T1 controller
of a T3 to go down for the Cisco 7500 and Cisco 7200 series routers.
Note
|
T1 channels on the CT3IP are numbered 1 to 28 rather than the more traditional zero-based numbering scheme (0 to 27) used
with other Cisco products. This is to ensure consistency with telco numbering schemes for T1 channels within channelized T3
equipment.
|
The
showcontrollerst3 command also displays Maintenance Data Link (MDL) information (received strings) if MDL is configured and framing is set to
C-bit.
Cisco 10000 Series Router Usage Guidelines
In releases prior to Cisco IOS Release 12.2(33)SB, when you configure the t1 loopback remote command on the local router,
the command also displays in the running configuration file of the far-end router. This is due to the Route Processor (RP)
updating an incorrect parameter when it receives the loopback event message from the line card for loopback requests from
the far end.
In Cisco IOS Release 12.2(33)SB, the RP updates the correct parameter and the show controllers command correctly displays
the loopback CLI commands applied on the local end and displays the loopback events and status received from the line card
in response to loopback requests from the far end.
This change in behavior affects the following line cards and is documented in the CSCsm84447 caveat:
In Cisco IOS Release 12.2(33)SB, the output from the show controller command includes line code information for the 6-port
channelized T3 line card and the 8-port E3/DS3 line card. However, because SONET line cards do not have a direct physical
link at the T3 or E3 level, the output from the show controller t3 command does not include line code information.
In Cisco IOS Release 12.2(31)SB, the output from the show controller command displays line code information. The output of
the show controller t3 command for SONET-based T3 also includes line code information.
Examples
The following is partial output from the
showcontrollerst3 errors command for Cisco IOS Release 12.2(19c) for a specific T1 controller of a T3 on a Cisco 7200 series router with a
bay/port of 4/1, displaying the T1 1 alarm event of OOF:
Router# show controllers t3 4/1/1 errors
T3 4/1: Error Log Information
present alarm: NONE
Error: AIS
17:28:08-17:29:18
T1 1 Error Log Information
present alarm: OOF
Since 17:30:55
Error: OOF
17:30:09-17:30:46
The following is partial output from the
showcontrollerst3 errors command from Cisco IOS Release 12.2(19c) for a T3 controller on a Cisco 7200 series router with a bay/port of 4/1,
displaying a history of all alarm events on all 28 T1 channels:
Router# show controllers t3 4/1 errors
T3 4/1: Error Log Information
present alarm: NONE
Error: AIS
17:28:08-17:29:18
T1 1 Error Log Information
present alarm: OOF
Since 17:30:55
Error: OOF
17:30:09-17:30:46
T1 2 Error Log Information
present alarm: NONE
T1 3 Error Log Information
present alarm: NONE
T1 4 Error Log Information
present alarm: NONE
T1 5 Error Log Information
present alarm: NONE
T1 6 Error Log Information
present alarm: NONE
T1 7 Error Log Information
present alarm: NONE
T1 8 Error Log Information
present alarm: NONE
T1 9 Error Log Information
present alarm: NONE
T1 10 Error Log Information
present alarm: NONE
T1 11 Error Log Information
present alarm: NONE
.
.
.
Examples
The following is partial output from the
showcontrollerst3 errors command from Cisco IOS Release 12.2(19c) for a T3 controller with a slot/bay/port of 1/4/1, displaying a history of
all alarm events on all 28 T1 channels:
Router# show controllers t3 1/4/1 errors
T3 1/4/1: Error Log Information
present alarm: NONE
Error: AIS
17:28:08-17:29:18
T1 1 Error Log Information
present alarm: OOF
Since 17:30:55
Error: OOF
17:30:09-17:30:46
T1 2 Error Log Information
present alarm: NONE
T1 3 Error Log Information
present alarm: NONE
T1 4 Error Log Information
present alarm: NONE
T1 5 Error Log Information
present alarm: NONE
T1 6 Error Log Information
present alarm: NONE
T1 7 Error Log Information
present alarm: NONE
.
.
.
The following is partial output from the
showcontrollerst3 errors command from Cisco IOS Release 12.2(19c) for a specific T1 controller of a T3 on a Cisco 7200 series router with a
bay/port of 4/1, displaying the T1 1 alarm event of OOF:
Router# show controllers t3 4/1/1 errors
T3 4/1: Error Log Information
present alarm: NONE
Error: AIS
17:28:08-17:29:18
T1 1 Error Log Information
present alarm: OOF
Since 17:30:55
Error: OOF
17:30:09-17:30:46
.
.
.
The table below describes the error field shown in the display.
Table 10.
show
controllers
t3
Error Field Description
Field
|
Description
|
AIS
|
alarm indication signal. In a T1 transmission, an all-ones signal transmitted in lieu of the normal signal to maintain transmission
continuity and to indicate to the receiving terminal that there is a transmission fault that is located either at, or upstream
from, the transmitting terminal.
|
RAI
|
remote alarm indication. Indicates a yellow alarm from the remote end of the T1 transmission.
|
OOF
|
out of frame. An OOF defect is detected when any three or more errors in sixteen or fewer consecutive F-bits occur.
|
LOS
|
loss of signal. A loss of signal occurs when n consecutive zeros is detected on an incoming signal.
|
NONE
|
No error is detected.
|
The following is partial output from the
showcontrollerst3 command from Cisco IOS Release 12.2(19c):
Router# show controllers t3 2/1/0
T3 2/1/0 is down. Hardware is 2CT3 single wide port adapter
CT3 H/W Version:0.2.2, CT3 ROM Version:1.0, CT3 F/W Version:2.5.1
FREEDM version:1, reset 0 resurrect 0
Applique type is Channelized T3
Transmitter is sending remote alarm.
Receiver has loss of signal.
FEAC code received:No code is being received
Framing is M23, Line Code is B3ZS, Clock Source is Internal
Rx-error throttling on T1's ENABLED
Rx throttle total 0, equipment customer loopback
Data in current interval (545 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
545 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
900 Unavailable Secs, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
Data in Interval 2:
<snip>
The following is partial output from the
showcontrollerst3 command from Cisco IOS Release 12.2(19c) for the T1 channel of the T3 controller:
Router# show controllers t3 2/1/0
T3 2/1/0 is down. Hardware is 2CT3 single wide port adapter
CT3 H/W Version:0.2.2, CT3 ROM Version:1.0, CT3 F/W Version:2.5.1
FREEDM version:1, reset 0 resurrect 0
T1 1 is down
timeslots:1-24
FDL per AT&T 54016 spec.
Receiver has loss of signal.
Framing is ESF, Clock Source is Internal
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
The following is partial output from the
showcontrollerst3 command:
Router# show controllers t3 3/0/0
T3 3/0/0 is up.
CT3 H/W Version: 4, CT3 ROM Version: 0.116, CT3 F/W Version: 0.10.0
Mx H/W version: 2, Mx ucode ver: 1.24
Applique type is Channelized T3
No alarms detected.
FEAC code received: No code is being received
Framing is M23, Line Code is B3ZS, Clock Source is Internal.
Ext1: LOS, Ext2: LOS, Ext3: LOS, Test: OK
Data in current interval (39 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
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,
0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
.
.
.
T1 1 is down, speed: 1536 kbs, non-inverted data
timeslots: 1-24
FDL per ANSI T1.403 and AT&T 54016 spec.
Configured for FDL Remotely Line Looped
No alarms detected.
Framing is ESF, LineCode is B8ZS, Clock Source is Internal.
BERT test result (running)
Test Pattern: All 0’s, Status: Sync, Sync Detected: 1
Interval: 4 minute(s), Tim Remain: 4 minute(s)
Bit Errors (Sync BERT Started): 0 bits
Bit Errors (Sync last Sync): 0 bits, Bits Received: 7 Mbits
The following is partial output from the
showcontrollerst3 brief command:
Router# show controllers t3 3/0/0 brief
T3 3/0/0 is up.
CT3 H/W Version: 4, CT3 ROM Version: 0.116, CT3 F/W Version: 0.10.0
Mxt H/W version: 2, Mxt ucode ver: 1.24
Applique type is Channelized T3
No alarms detected.
FEAC code received: No code is being received
Framing is M23, Line Code is B3ZS, Clock Source is Internal.
Ext1: LOS, Ext2: LOS, Ext3: LOS, Test: OK
T1 1 is up, speed: 1536 kbs, non-inverted data
timeslots: 1-24
FDL per ANSI T1.403 and AT&T 54016 spec.
Configured for FDL Remotely Line Looped
No alarms detected.
Framing is ESF, LineCode is B8ZS, Clock Source is Internal.
BERT test result (done)
Test Pattern: All 0’s, Status: Not Sync, Sync Detected: 1
Interval: 4 minute(s), Tim Remain: 0 minute(s)
Bit Errors(Sync BERT Started): 0 bits
Bit Errors(Sync last Sync): 0 bits, Bits Received: 368 Mbits
.
.
.
The following is partial output from the
showcontrollerst3 tabular command:
Router# show controllers t3 3/0/0 tabular
T3 3/0/0 is up.
CT3 H/W Version: 4, CT3 ROM Version: 1.2, CT3 F/W Version: 2.1.0
Mx H/W version: 2, Mx ucode ver: 1.25
Applique type is Channelized T3
No alarms detected.
MDL transmission is disabled
FEAC code received: No code is being received
Framing is C-BIT Parity, Line Code is B3ZS, Clock Source is Internal.
Ext1: AIS, Ext2: LOS, Ext3: LOS, Test: LOS
INTERVAL LCV PCV CCV PES PSES SEFS UAS LES CES CSES
08:56-09:11 0 0 0 0 0 0 0 0 0 0
08:41-08:56 0 0 0 0 0 0 0 0 0 0
08:26-08:41 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0
.
.
.
T1 2 is up, speed: 1536 kbs, non-inverted data
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Line Code is B8ZS, Clock Source is Internal.
INTERVAL LCV PCV CSS SELS LES DM ES BES SES UAS SS
08:56-09:11 0 0 0 0 0 0 0 0 0 0 0
08:41-08:56 0 0 0 0 0 0 0 0 0 0 0
08:26-08:41 0 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0 0
The following output shows a controller with a high number of errors on the line, thus showing a throttle count (RX throttles).
Router# show controllers t3 6/0/0 tabular
T1 2 is up
timeslots: 1-24
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Line, Rx throttles 47
INTERVAL LCV PCV CSS SELS LES DM ES BES SES UAS SS
07:48-07:53 0 0 0 0 0 0 0 0 0 0
The following is partial output from the
showcontrollerst3 remote performance command. This information is available if thet1fdlansi controller configuration command is enabled for a T1 channel on a CT3IP.
Router# show controllers t3 3/0/0 remote performance
T3 3/0/0 is up.
CT3 H/W Version: 4, CT3 ROM Version: 0.116, CT3 F/W Version: 20.2.0
Mx H/W version: 2, Mx ucode ver: 1.25
T1 1 - Remote Performance Data
Data in current interval (356 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:
1 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
2 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs
0 Unavail 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
Total Data (last 2 15 minute intervals):
1 Path Code Violations
1 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
2 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs
0 Unavail Secs
.
.
.
The table below describes the fields shown in the display.
Table 11.
show
controllers
t3
Field Descriptions--Cisco 7500 Series
Field
|
Description
|
T3 3/0/0 is up
|
T3 controller in slot 3 is operating. The controller’s state can be up, down, or administratively down. Loopback conditions
are shown by (Locally Looped) or (Remotely Looped).
|
CT3 H/W Version
|
Version number of the hardware.
|
CT3 ROM Version
|
Version number of the ROM.
|
CT3 F/W Version
|
Version number of the firmware.
|
Mx H/W version
|
Hardware version number of the HDLC controller chip.
|
Mx ucode ver
|
Microcode version of the HDLC controller chip.
|
Applique type
|
Controller type.
|
No alarms detected
|
Any alarms detected by the controller are displayed here. Possible alarms are as follows:
-
Transmitter is sending remote alarm.
-
Transmitter is sending AIS.
-
Receiver has loss of signal.
-
Receiver is getting AIS.
-
Receiver has loss of frame.
-
Receiver has remote alarm.
-
Receiver has no alarms.
|
MDL transmission
|
Status of the Maintenance Data Link (either enabled or disabled).
|
FEAC code received
|
Whether or not a far-end alarm code request is being received. Possible values are as follows:
|
Framing
|
Framing type on the CT3IP. Values are M23, C-Bit, and Auto-detect.
|
Line Code
|
Line coding format on the CT3IP.
|
Clock Source
|
Clock source on the CT3IP. Values are internal or line.
|
RX-error throttling
|
Indicates that error throttling is enabled. The error throttling command disables the T1 level clock in order to stop receiving
error data packets on a T1 controller. If any single interface receives a burst of errors over a short duration, such as 400
errors in 100 milliseconds, the T1 clock will be turned off for a period of 100 milliseconds.
|
RX throttles
|
The presence of the throttle count indicates that there are many input errors on lines. On the CT3 PA, the T1 is throttled
when there are a number of input errors on an interface (400 errors in 100 milliseconds). The T1 is throttled even if one
of the interfaces on it sees continuous errors. The 1-second periodic process checks for throttled interfaces and unthrottles
them back.
|
BERT test result
|
BERT test information is available if the
t1bert controller configuration command is enabled for the T1 channel on the CT3IP. The BERT results include the following information:
-
Test Pattern--Type of test pattern selected.
-
Status--Status of the test.
-
Sync Detected--Number of times the pattern synch is detected (that is, the number of times the pattern goes from No Sync
to Sync).
-
Interval--Duration selected.
-
Tim Remain--Time remaining on the BERT test.
-
Bit Errors (Sync BERT Started)--Number of bit errors during the BERT test.
-
Bit Errors (Sync last Sync)--Number of bit errors since the last pattern sync was detected.
-
Bits Received--Total bits received.
When the T1 channel has a BERT test running, the line state is DOWN. Also, when the BERT test is running and the Status field
is Not Sync, the information in the total bit errors field is not valid. When the BERT test is done, the Status field is not
relevant.
|
Data in current interval (39 seconds elapsed)
|
Shows the current accumulation period, which rolls into the 24-hour accumulation every 15 minutes. Accumulation period is
from 1 to 900 seconds. The oldest 15-minute period falls off the back of the 24-hour accumulation buffer.
|
Line Code Violations
|
Line Code Violations (LCVs) is a count of both Bipolar Violations (BPVs) and Excessive Zeros (EXZs) that occur over the accumulation
period. An EXZ increments the LCV by one regardless of the length of the zero string.
|
P-bit Coding Violation
|
For all DS3 applications, a P-bit coding violation (PCV) error event is a P-bit parity error event. A P-bit parity error
event is the occurrence of a received P-bit code on the DS3 M-frame that is not identical to the corresponding locally calculated
code.
|
C-bit Coding Violation
|
For C-bit parity and SYNTRAN DS3 applications, the C-bit coding violation (CCV) is the count of coding violations reported
via the C-bits. For C-bit parity, it is the count of CP-bit parity errors that occur during the accumulation interval. For
SYNTRAN, it is a count of CRC-9 errors that occur during the accumulation interval.
|
P-bit Err Secs
|
P-bit errored seconds (PES) is a second with one or more PCVs, one or more out-of-frame defects, or a detected incoming AIS.
This gauge is not incremented when unavailable seconds are counted.
|
P-bit Severely Err Secs
|
P-bit severely errored seconds (PSES) is a second with 44 or more PCVs, one or more out-of-frame defects, or a detected incoming
AIS. This gauge is not incremented when unavailable seconds are counted.
|
Severely Err Framing Secs
|
Severely errored framing seconds (SEFS) is a second with one or more out-of-frame defects or a detected incoming AIS.
|
Unavailable Secs
|
The number of unavailable seconds (UAS) is calculated by counting the number of seconds for which the interface is unavailable.
For more information, refer to RFC 1407,
DS3 MIB Variables .
|
Line Errored Secs
|
Line errored seconds (LES) is a second in which one or more code violations or one or more LOS defects occurred.
|
C-bit Errored Secs
|
C-bit errored seconds (CES) is a second with one or more C-bit code violations (CCV), one or more out-of-frame defects, or
a detected incoming AIS. This gauge is not incremented when UASs are counted.
|
C-bit Severely Errored Secs
|
C-bit severely errored seconds (CSES) is a second with 44 or more CCVs, one or more out-of-frame defects, or a detected incoming
AIS. This gauge is not incremented when UASs are counted.
|
Total Data (last 1 15 minute intervals)
|
Shows the last 15-minute accumulation period.
|
T1 1 is up
|
T1 channel is operating. The channel’s state can be up, down, or administratively down. Loopback conditions are shown by
(Locally Looped) or (Remotely Looped).
|
speed
|
Speed of the T1 channel, in kbps.
|
non-inverted data
|
Indicates if the T1 channel is configured for inverted data.
|
timeslots
|
Time slots assigned to the T1 channel.
|
FDL per ANSI T1.403 and AT&T 54016 spec.
|
Performance monitoring is via Facility Data Link per ANSI T1.403 and AT&T standard specification number 54016.
|
No alarms detected
|
Any alarms detected by the T1 controller are displayed here. Possible alarms are as follows:
-
Transmitter is sending remote alarm.
-
Transmitter is sending AIS.
-
Receiver has loss of signal.
-
Receiver is getting AIS.
-
Receiver has loss of frame.
-
Receiver has remote alarm.
-
Receiver has no alarms.
|
Framing
|
Type of framing used on the T1 channel. Values are ESF or SF.
|
Line Code
|
Type of line coding used on the T1 channel. Values are B8ZS or AMI.
|
Clock Source
|
Clock source on the T1 channel. Values are internal or line.
|
Path Code Violations
|
Path coding violation (PCV) error event is a frame synchronization bit error in the D4 and E1-no-CRC formats or a CRC error
in the ESF and E1-CRC formats.
|
Slip Secs
|
Controlled slip second (CSS) is a 1-second interval that contains one or more controlled slips.
|
Fr Loss Secs
|
Frame loss seconds (SELS) is the number of seconds for which an out-of-frame error is detected.
|
Line Err Secs
|
Line errored seconds (LES) is a second in which one or more line code violation errors are detected.
|
Degraded Mins
|
Degraded minute (DM) is a minute in which the estimated error rate exceeds 1E-6 but does not exceed 1E-3. For more information,
refer to RFC 1406,
Definitions of Managed Objects for DS1 and E1 Interface Types .
|
Errored Secs
|
Errored seconds (ES) is a second with one or more path coding violations, one or more out-of-frame defects, or one or more
controlled slip events or a detected AIS defect.
|
Bursty Err Secs
|
Bursty errored seconds (BES) is a second with fewer than 320 and more than one path coding violation error events, no severely
errored frame defects, and no detected incoming AIS defects. Controlled slips are not included in this parameter.
|
Severely Err Secs
|
Severely errored seconds (SES) is a second with 320 or more path code violation errors events, one or more out-of-frame defects,
or a detected AIS defect.
|
Unavailable Secs
|
Number of seconds during which the interface was not available in this interval. Referred to as UAS.
|
Stuffed Secs
|
Stuffed seconds (SS) is a second in which one more bit stuffings take place. This happens when the Pulse Density Enforcer
detects a potential violation in the output stream and inserts a 1 to prevent it. Such bit stuffings corrupt user data and
indicate that the network is configured incorrectly. This counter can be used to help diagnose this situation.
|
Examples
The following example shows the summary status of the T3 controller located in shelf 1, slot 4, port 0:
Router# show controllers t3 1/4/0 brief
T3 1/4/0 is up.
Applique type is Channelized T3
No alarms detected.
MDL transmission is disabled
FEAC code received: Multiple DS1 LOS/HBER
Framing is C-BIT Parity, Line Code is B3ZS, Clock Source is Line.
Data in current interval (491 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
Total Data (last 80 15 minute intervals):
3 Line Code Violations, 4 P-bit Coding Violation,
2 C-bit Coding Violation, 0 P-bit Err Secs,
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs,
2 Unavailable Secs, 0 Line Errored Secs,
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
The following example shows the detailed status of the T3 controller connected to the Cisco AS5800 in shelf 1, slot 4, port
0. Notice that the detailed information shows the last eighty-six 15-minute time periods.
Router# show controllers t3 1/4/0
T3 1/4/0 is up.
Applique type is Channelized T3
No alarms detected.
MDL transmission is disabled
FEAC code received: Multiple DS1 LOS/HBER
Framing is C-BIT Parity, Line Code is B3ZS, Clock Source is Line.
Data in current interval (91 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, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored 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, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
Data in Interval 3:
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 4:
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 86:
3 Line Code Violations, 4 P-bit Coding Violation
2 C-bit Coding Violation, 0 P-bit Err Secs
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs
2 Unavailable Secs, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
Total Data (last 86 15 minute intervals):
3 Line Code Violations, 4 P-bit Coding Violation,
2 C-bit Coding Violation, 0 P-bit Err Secs,
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs,
2 Unavailable Secs, 0 Line Errored Secs,
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
The table below describes the fields shown in the display.
Table 12. show controllers t3 Field Descriptions--Cisco AS5800
Field
|
Description
|
T3 1/4/0 is up
|
T3 controller connected to this Cisco AS5800 access server in shelf 1, slot 4, port 0 is up. The controller’s state can be
up, down, or administratively down. Loopback conditions are shown by Locally Looped or Remotely Looped.
|
Applique type
|
Describes the type of controller.
|
No alarms detected
|
Any alarms detected by the controller are displayed here. Possible alarms are as follows:
-
Transmitter is sending remote alarm.
-
Transmitter is sending alarm indication signal (AIS).
-
Receiver has loss of signal (LOS).
-
Receiver is getting AIS.
-
Receiver has loss of frame (LOF).
-
Receiver has remote alarm.
-
Receiver has no alarms.
|
MDL transmission
|
Maintenance Data Link status (either enabled or disabled). Used for carrying performance information and control signals
across the network toward the far-end T3 unit. It is the counterpart of Facility Data Link (FDL) in a T1 link.
|
FEAC code received
|
Whether or not a far-end alarm code request is being received. Possible values are as follows:
|
Framing
|
Standard T3 framing type: M23, C-Bit, or Auto-detect.
|
Line Code
|
Standard T3 line-coding format. In this example, the line-coding format is bipolar 3-zero substitution (B3ZS).
|
Clock Source
|
The source of the synchronization signal (clock): line or internal. In this example, the line is providing the clock signal.
|
Data in current interval (... seconds elapsed)
|
Summary statistics for T3 signal quality for the current time interval of 900 seconds (15 minutes). In this example, the
statistics are for current partial interval. Statistics roll into the 24-hour accumulation buffer every 15 minutes. The oldest
15-minute period falls off the back of the 24-hour accumulation buffer.
|
Line Code Violations
|
Count of both Bipolar Violations (BPVs) and Excessive Zeros (EXZs) that occur over the accumulation period. An EXZ increments
the Line Code Violations (LCVs) by one regardless of the length of the zero string.
|
P-bit Coding Violation
|
P-bit parity error event. A P-bit parity error event is the occurrence of a received P-bit code on the DS3 M-frame that is
not identical to the corresponding locally calculated code. Referred to as PCV.
|
C-bit Coding Violation
|
Count of coding violations reported via the C-bits. For C-bit parity, it is the count of CP-bit parity errors that occur
during the accumulation interval. Referred to as CCV.
|
P-bit Err Secs
|
Number of seconds with one or more PCVs, one or more out-of-frame defects, or a detected incoming AIS. This gauge is not
incremented when unavailable seconds are counted.
|
P-bit Severely Err Secs
|
Number of seconds with 44 or more PCVs, one or more out-of-frame defects, or a detected incoming AIS. This gauge is not incremented
when unavailable seconds are counted.
|
Severely Err Framing Secs
|
Number of a seconds with one or more out-of-frame defects or a detected incoming AIS.
|
Unavailable Secs
|
Number of seconds during which the interface was not available in this interval. Referred to as UAS.
|
Line Errored Secs
|
Number of seconds in this interval during which one or more code violations or one or more LOS defects occurred. Referred
to as LES.
|
C-bit Errored Secs
|
Number of seconds with one or more C-bit code violations (CCV), one or more out-of-frame defects, or a detected incoming
AIS. This gauge is not incremented when UASs are counted. Referred to as CES.
|
C-bit Severely Errored Secs
|
Number of seconds with 44 or more CCVs, one or more out-of-frame defects, or a detected incoming AIS. This gauge is not incremented
when UASs are counted.
|
Total Data (last ... 15 minute intervals)
|
Summary statistics for T3 signal quality for 15-minute intervals. Every 24 hours (96 intervals) the counters in this data
block clear.
|
Examples
The following examples from the show controller t3 command show the information that displays when the router is running
Cisco IOS Release 12.2(33)SB and Cisco IOS Release 12.2(31)SB:
Examples
Router# show controllers t3 2/0/0.1
T3 2/0/0.1 is up. Hardware is C10K CHSTM1 line card
Applique type is Channelized T3
Controller is in channelized mode
No alarms detected.
MDL transmission is disabled
FEAC code received: No code is being received
Framing is C-BIT Parity (Detected), Clock Source is Internal
equipment customer loopback
Data in current interval (155 seconds elapsed):
290738 P-bit Coding Violation
290736 C-bit Coding Violation, 0 P-bit Err Secs
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs
34 Unavailable Secs, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
31 AIS Defect Secs, 0 FERF Defect Secs
1 Near-end path failures, 0 Far-end path failures
0 CP-bit Far-End Unavailable Secs, 107 Far-End Coding Violations
2 Far-End Errored Secs, 1 Far-End Severely Errored Secs
Examples
Router# show controllers t3 2/0/0.1
T3 2/0/0.1 is up. Hardware is C10K CHSTM1 line card
Applique type is Channelized T3
Controller is in channelized mode
No alarms detected.
MDL transmission is disabled
FEAC code received: No code is being received
Framing is C-BIT Parity (Detected), Clock Source is Internal
equipment customer loopback
Data in current interval (155 seconds elapsed):
290738 P-bit Coding Violation
290736 C-bit Coding Violation, 0 P-bit Err Secs
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs
34 Unavailable Secs, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
Examples
Router# show controllers t3 2/0/0.1
T3 2/0/0.1 is up. Hardware is C10K CHSTM1 line card
Applique type is Channelized T3
Controller is in channelized mode
No alarms detected.
MDL transmission is disabled
FEAC code received: No code is being received
Framing is C-BIT Parity (Detected), Clock Source is Internal
equipment customer loopback
Data in current interval (155 seconds elapsed):
290738 P-bit Coding Violation
290736 C-bit Coding Violation, 0 P-bit Err Secs
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs
34 Unavailable Secs, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
31 AIS Defect Secs, 0 FERF Defect Secs
1 Near-end path failures, 0 Far-end path failures
0 CP-bit Far-End Unavailable Secs, 107 Far-End Coding Violations
2 Far-End Errored Secs, 1 Far-End Severely Errored Secs
Examples
Router# show controllers t3 8/0/0
T3 8/0/0 is down. Hardware is C10K Half Height CT3 line card
Applique type is Channelized T3
Controller is in channelized mode
Receiver has loss of signal.
MDL transmission is disabled
FEAC code received: No code is being received
Framing is C-BIT Parity (Configured)
Line Code is B3ZS, Clock Source is Internal
equipment customer loopback
Data in current interval (617 seconds elapsed):
6120 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
25 Unavailable Secs, 0 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
0 AIS Defect Secs, 25 LOS Defect Secs
1 Near-end path failures
0 Far-end path failures, 0 FERF Defect Secs
24 CP-bit Far-End Unavailable Secs, 4771 Far-End Coding Violations
0 Far-End Errored Secs, 0 Far-End Severely Errored Secs
The table below describes the significant fields shown in the display.
Table 13. show controllers t3 Field Descriptions--Cisco 10000 series router
Field
|
Description
|
AIS
|
Alarm indication signal.
|
T3 2/0/0.1 is up
|
T3 controller connected to this Cisco 10000 series router in shelf 2, slot 0, port 0.1 is up. The controller’s state can
be up, down, or administratively down. Loopback conditions are shown by Locally Looped or Remotely Looped.
|
T3 8/0/0 is down
|
T3 controller connected to this Cisco 10000 series router in shelf 8, slot 0, port 0 is down. The controller’s state can
be up, down, or administratively down. Loopback conditions are shown by Locally Looped or Remotely Looped.
|
Applique type
|
Describes the type of controller.
|
No alarms detected
|
Any alarms detected by the controller are displayed here. Possible alarms are as follows:
-
Receiver has loss of frame (LOF).
-
Receiver has loss of signal (LOS).
-
Receiver has no alarms.
-
Receiver has remote alarm.
-
Receiver is getting AIS.
-
Transmitter is sending alarm indication signal (AIS).
-
Transmitter is sending remote alarm.
|
MDL transmission
|
Maintenance Data Link status (either enabled or disabled). Used for carrying performance information and control signals
across the network toward the far-end T3 unit. It is the counterpart of Facility Data Link (FDL) in a T1 link.
|
FEAC code received
|
Whether a far-end alarm code request is being received. Possible values are as follows:
|
Framing
|
Standard T3 framing type: M23, C-bit, or Auto-detect.
|
Line Code
|
Standard T3 line-coding format. In this example, the line-coding format is bipolar 3-zero substitution (B3ZS).
|
Clock Source
|
The source of the synchronization signal (clock): Line or Internal. In this example, the line is providing the clock signal.
|
Data in current interval (617 seconds elapsed)
|
Summary statistics for T3 signal quality for the current time interval of 900 seconds (15 minutes). In this example, the
statistics are for current partial interval. Statistics roll into the 24-hour accumulation buffer every 15 minutes. The oldest
15-minute period falls off the back of the 24-hour accumulation buffer.
|
Line Code Violations
|
Count of both Bipolar Violations (BPVs) and Excessive Zeros (EXZs) that occur over the accumulation period. An EXZ increments
the line code violations (LCVs) by one, regardless of the length of the zero string.
|
P-bit Coding Violation
|
P-bit parity error event. A P-bit parity error event is the occurrence of a received P-bit code on the DS3 M-frame that is
not identical to the corresponding locally calculated code. Referred to as PCV.
|
C-bit Coding Violation
|
Count of coding violations reported via the C-bits. For C-bit parity, it is the count of CP-bit parity errors that occur
during the accumulation interval. Referred to as CCV.
|
P-bit Err Secs
|
Number of seconds with one or more PCVs, one or more out-of-frame defects, or a detected incoming AIS. This gauge is not
incremented when unavailable seconds are counted.
|
P-bit Severely Err Secs
|
Number of seconds with 44 or more PCVs, one or more out-of-frame defects, or a detected incoming AIS. This gauge is not incremented
when unavailable seconds are counted.
|
Severely Err Framing Secs
|
Number of a seconds with one or more out-of-frame defects or a detected incoming AIS.
|
Unavailable Secs
|
Number of seconds during which the interface was not available in this interval. Referred to as UAS.
|
Line Errored Secs
|
Number of seconds in this interval during which one or more code violations or one or more LOS defects occurred. Referred
to as LES.
|
C-bit Errored Secs
|
Number of seconds with one or more C-bit code violations (CCV), one or more out-of-frame defects, or a detected incoming
AIS. This gauge is not incremented when UASs are counted. Referred to as CES.
|
C-bit Severely Errored Secs
|
Number of seconds with 44 or more CCVs, one or more out-of-frame defects, or a detected incoming AIS. This gauge is not incremented
when UASs are counted.
|
Examples
The following is a sample output from the show controllers t3 command on the Cisco series routers:
Router# show controllers t3 0/4/40
T3 0/4/40 is up.
Hardware is -48T3E3-CE
Applique type is Clear Channel T3
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 (240 seconds elapsed):
Near End
0 Line Code Violations, 0 P-bit Coding Violations
0 C-bit Coding Violations, 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 Path Failures
0 AIS Defect Secs, 0 LOS Defect Secs
Far End
0 Errored Secs, 0 Severely Errored Secs
0 C-bit Unavailable Secs, 0 Path Failures
0 Code Violations, 0 Service Affecting Secs
Data in Interval 1:
Near End
0 Line Code Violations, 0 P-bit Coding Violations
0 C-bit Coding Violations, 0 P-bit Err Secs
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs
20 Unavailable Secs, 20 Line Errored Secs
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
20 Severely Errored Line Secs, 1 Path Failures
0 AIS Defect Secs, 20 LOS Defect Secs
Far End
0 Errored Secs, 0 Severely Errored Secs
0 C-bit Unavailable Secs, 0 Path Failures
0 Code Violations, 0 Service Affecting Secs
Total Data (last 1 15 minute intervals):
Near End
0 Line Code Violations, 0 P-bit Coding Violations,
0 C-bit Coding Violations, 0 P-bit Err Secs,
0 P-bit Severely Err Secs, 0 Severely Err Framing Secs,
20 Unavailable Secs, 20 Line Errored Secs,
0 C-bit Errored Secs, 0 C-bit Severely Errored Secs
20 Severely Errored Line Secs, 1 path failures
0 AIS Defect Secs, 20 LOS Defect Secs
Far End
0 Errored Secs, 0 Severely Errored Secs
0 C-bit Unavailable Secs, 0 Path Failures
0 Code Violations, 0 Service Affecting Secs
T1 1 is up
timeslots:
FDL per AT&T 54016 spec.
No alarms detected.
Framing is ESF, Clock Source is Internal
Data in current interval (250 seconds elapsed):
Near End
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 Unavailable Secs, 0 Stuffed Secs
0 Path Failures, 0 SEF/AIS Secs
Far End
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 Unavailable Secs 0 Path Failures
Data in Interval 1:
Near End
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 2 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
2 Errored Secs, 0 Bursty Err Secs, 2 Severely Err Secs
0 Unavailable Secs, 0 Stuffed Secs
1 Path Failures, 2 SEF/AIS Secs
Far End
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 2 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
3 Errored Secs, 0 Bursty Err Secs, 3 Severely Err Secs
0 Unavailable Secs 0 Path Failures
Total Data (last 1 15 minute intervals):
Near End
0 Line Code Violations,0 Path Code Violations,
0 Slip Secs, 2 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
2 Errored Secs, 0 Bursty Err Secs, 2 Severely Err Secs
0 Unavailable Secs, 0 Stuffed Secs
1 Path Failures, 2 SEF/AIS Secs
Far End
0 Line Code Violations,0 Path Code Violations
0 Slip Secs, 2 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
3 Errored Secs, 0 Bursty Err Secs, 3 Severely Err Secs
0 Unavailable Secs, 0 Path Failures
Examples
Use show controller t3
0/1/20
path to verify DS3 CEP configuration:
rtr2#show controller t3 0/1/20 path
T3 0/1/20 PATH 1.
Asynchronous Mapping for DS3 into STS-1
TX : TDM to PSN direction
RX : PSN to TDM direction
Clock Source is internal
AIS = 0 RDI = 0 REI = 349 BIP(B3) = 22
LOP = 0 PSE = 0 NSE = 0 NEWPTR = 0
LOM = 0 PLM = 0 UNEQ = 0
Active Defects: None
Detected Alarms: None
Asserted/Active Alarms: None
Alarm reporting enabled for: None
TCA threshold: B3 = 10e-6
Rx: C2 = FF
Tx: C2 = 01
Tx J1 Length : 64
Tx J1 Trace
72 74 72 32 20 30 2F 31 2F 32 30 2E 31 00 00 00 rtr2 0/1/20.1...
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Expected J1 Length : 64
Expected J1 Trace
72 74 72 32 20 30 2F 31 2F 32 30 2E 31 00 00 00 rtr2 0/1/20.1...
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
PATH TRACE BUFFER : UNSTABLE
Rx J1 Length : 64
Rx J1 Trace
72 73 70 32 20 30 2F 35 2F 31 32 2E 31 00 00 00 rsp2 0/5/12.1...
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
rtr2#
Note
|
The verification output does not provide the alarm details.
|