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Configuring SRM 3T3 Cards

Configuring SRM 3T3 Cards

The SRM3T3 module provides 1:N redundancy for the FRSM8, the CESM8, and the AUSM8 and service modules over T3 lines, and T1 distribution. This chapter describes dialogs that show configuration information for:

Displaying Card Parameters

Select the SRM card to display SRM card configuration dialogs by doing one of the following:

Card Config

Use the Card Config dialog to view SRM3T3 Card characteristics, hardware, firmware, and status information. The Card Config dialog parameters are described in Table 11-1.


Figure 11-1: Card Config Dialog



Table 11-1: Card Config Dialog Parameters
Parameter Description

Slot Number

Number of the current slot the card is installed in.

Card Type

Current card type. In this case, it is an SRM3T3.

Card State

Front card status. Can be one of the following:

  • nocard

  • standby

  • active

  • failed

  • selfTest

  • heldInReset

  • boot

  • mismatch

  • unknown

  • coreCardMisMatch

  • blocked

  • reserved

Front Card Description

Description of the front card.

Front Card Serial No

Serial number of the front card.

Card Hardware Revision

Current card hardware revision.

Card Firmware Revision

Current card firmware revision.

MIB Version Number

MIB version number updated when any part of the MIB changes.

Card Reset Reason

Last reason for card to reset. This values is stored in the non volatile RAM, and can be retrieved when the card is functioning. Can be one of the following:

  • powerup

  • parityError

  • watchDog

  • resource

  • clrAll

  • missingTask

Line Module Type

Current line module number.

Line Module State

Current back card state. Can be notPresent, Present, or invalid.

Line Module Description

Description of the current back card.

Line Module Serial Number

Line module number. Physically, it is behind the backplane with connectors for physical devices. Specific to the front or functional modules.

Line Module Hardware Revision

Hardware revision of the current back card.

Line Module Firmware Revision

Firmware revision of the current back card.

Lines Configuration

Use the Lines dialog to configure dsx3 and srm lines on an SRM card. (See Table 11-2.)

There are four ways to select the line (from the front or rear view of the card) to display the appropriate line configuration dialog:

Use the following dialogs to view and configure dsx3 line information. (If you reached any of these dialogs by device selection, the total number of rows read is displayed at the bottom of the dialog.) To select another line for viewing, enter a line number in the LINE field at the top of the dialog. The dialog is refreshed and displays the new information.

The categories of line configuration are:

Physical Line Config (dsx3)



Table 11-2: SRM3T3 dsx3 Lines Table Parameters
Parameter Description

Line Number

Line number.

Line Enable

Line enabled status. Choose one from the popup menu:

  • modify—Used to modify the parameters of a T3 line that has already been enabled.

  • enable—Turns on one T3 line signal.

  • disable—Turn off one T3 line signal.

Line Type

Indicates the variety of DS3 C-bit or E3 application implementing this interface. The type of interface affects the interpretation of the usage and error statistics. The rate of DS3 is 44.736 Mbps and E3 is 34.368 Mbps. The dsx3ClearChannel value means that the C-bits are not used except for sending/receiving AISLine type. Choose one from the popup menu:

  • dsx3CbitParity

  • g832-g804

  • dsx3M23

  • g751

  • dsx3Unframed

  • e3Unframed

Line Coding

Type of zero code suppression used on the line, which in turn affects a number of its characteristics. Choose one from the popup menu:

  • dsx3B3ZS

  • e3HDB3

dsx3B3ZS and e3HDB3 refer to the use of specified patterns of normal bits and bipolar violations which are used to replace sequences of zero bits of a specified length.

Line Length

Specifies the length of the Line Interface Unit (LIU) buildout. Choose one from the popup menu:

  • lessThan225

  • moreThan 225

Line OOF Criteria

Specifies the out of frame decision criteria. Out Of Frame (OOF) is declared when errors are detected in the framing octets for four consecutive frames. Choose one from the popup menu:

  • fBits3of8—An OOF condition is declared if at least 3 of 8 framing bits are in error.

  • fBits3of16—An OOF is declared if 3 of 16 farming bits are found to be in error.

Line Check AIS Bits

Specifies the AIS decision criteria. Choose one from the popup menu:

  • checkCbits—An AIS condition is declared when 1010 pattern is found and C-Bits are all zero.

  • ignorebits—An AIS condition is declared when the AIS pattern 1010... is detected, irrespective of the state of the C Bits.

Note   This object is not applicable for CESM-T3/E3.

Line Loopback Command

Represents the loopback configuration of the DS3/E3 interface. Choose one from the popup menu:

  • dsx3NoLoop—Not in the loopback state. A device that is not capable of performing a loopback on the interface shall always return this as it's value.

  • dsx3RemoteLineLoop—Near End loops back Remote data.

  • dsx3RemoteLocalLineLoop—Near End loops back Local data(outbound).

  • dsx3RemoteInbndLocalLoopback—Near End in bound loopback Local data(inbound).

Line Receive FEAC Validation

Specifies the FEAC code validation criteria. Choose one from the popup menu:

  • fFEACCodes4Of5—A valid FEAC code is declared if 4 of 5 codes match.

  • fFEACCodes8Of10—A valid FEAC code is declared when 8 of 10 codes match.

Line Transmit FEAC Codes

indicates what bit-oriented code to transmitted over the far-end alarm and control (FEAC) channel. Choose one from the popup menu:

  • dsx3SendNoCode—Sending looped or normal data.

  • dsx3SendLineCode:—Sending a request for a line loopback.

  • dsx3SendPayloadCode—Sending a request for a payload loopback (for example, all DS1/E1s in a DS3/E3 frame).

  • dsx3SendResourceCode—Sending a loopback deactivation request.

  • dsx3SendDS1LoopCode—Sending a request to put part of DS1/E1 within T3/E3 respectively into loopback.

  • dsx3SendTestPattern—Sending a test pattern.

Note   This object is not applicable for CESM-T3/E.

To modify an entry in the Lines dialog:

Step 1   Select the table column entry that you want to modify.

Step 2   View the possible value, if available, by displaying the popup menu next to the entry.

Step 3   Select or enter the appropriate value in the table column.

Step 4   Click Modify.

To make sure your changes went through, re-select the Lines table.

dsx3 Physical Line Alarm Configuration

Use the dsx3 Physical Line Alarm Configuration dialog to view and configure dsx3 physical line alarm information. (See Figure 11-2.)


Figure 11-2: Physical Line Alarm Config (dsx3) Dialog


The dsx3 Physical Line Alarm Configuration dialog parameters are described in Table 11-3.


Table 11-3: Physical Line Alarm Config (dsx3) Parameters
Parameter Description

Line Alarm State

Status of the line alarm. A value of zero indicates no alarms.

Line Statistical Alarm State

Status of the line statistical alarms. A value of zero indicates no alarms.

Red Severity

Used to set up the severity of RED alarm. When an LOS/LOF alarm is detected, the BNM sends the alarm with the appropriate alarm status. Can be minor or major.

RAI Severity

Used to set up the severity of RAI alarm. When RAI alarm is detected, the BNM sends the alarm with the appropriate alarm status. Can be minor or major.

Near End Alarm Up Count

Specifies the increment to the near-end alarm integration counters. The local alarms are LOS and LOF. The default is 6, and the integration counter is incremented by this value every 10 milliseconds when the alarm persists. The counter is decremented by the value of Near End Alarm Down Count while there is no alarm (the counter does not decrement below zero). When the integration counter exceeds dsx3NEAlarmThreshold, an alarm of the severity specified for the particular NE alarm is declared.

Near End Alarm Down Count

Specifies the decrement to the near-end alarm integration counters. The local alarms are LOS and LOF. The default is 1, and the integration counter is decremented by this value every 10 milliseconds while no alarm persists. The counter is incremented by the value of Near End Alarm Up Count while there is no alarm (the counter does not decrement below zero). When the integration counter reaches zero, any alarm previously declared is removed.

Near End Alarm Threshold

Determines the value that the alarm integration counter must reach for a near-end alarm to be declared. If the up count is 6, the down count is 1, and the threshold is 1500, an alarm is integrated in 2.5 seconds and removed in 15 seconds.

Far End Alarm Up Count

Determines the value that the alarm integration counter must reach for a near-end alarm to be declared. If the up count is 6, the down count is 1, and the threshold is 1500, an alarm is integrated in 2.5 seconds and removed in 15 seconds.

Far End Alarm Down Count

Specifies the decrement to the far-end alarm integration counters. The local alarms are RAI and AIS. The default is 1, and the integration counter is decremented by this value every 10 milliseconds while no alarm persists. The counter is incremented by the value of Far End Alarm Up Count while there is no alarm (the counter does not decrement below zero). When the integration counter decrements to zero, any previously declared alarm is removed.

Far End Alarm Threshold

Determines the value that the alarm integration counter must reach for a far-end alarm to be declared. If the up count is 6, the down count is 1, and the threshold is 1500, an alarm is integrated in 2.5 seconds and removed in 15 seconds.

Statistical Alarm Severity

Used to set up the severity of any of the statistical alarms. When a statistical counter exceeds it specified threshold, the AUM sends the alarm with the appropriate severity. Can be minor or major.

To modify the parameters, make the changes you want and click Modify.

Dsx3 Counters (1 of 2)

There are two dialogs for dsx3 counter configuration. Use the dsx3 Counters dialogs to view and configure dsx3 Counters. (See Figure 11-3 and Figure 11-4.)


Figure 11-3: dsx3 Counters (1 of 2) Dialog


The dsx3 Counters (1 of 2) dialog parameters are described in Table 11-4.


Table 11-4: dsx3 Counters (1 of 2) Parameters
Parameter Description

dsx3CounterClrButton

Choose noAction or clear.

Rcv LOS Count

Number of times the Loss of Signal is detected with or without integrating to LOS alarm.

Rcv OOF Count

Number of times the Out Of Frame is detected with or without integrating to OOF alarm.

RAI Count

Number of times yellow alarms is detected with or without integrating to RAI alarm.

CCV Count

Number of C Bit Coding Violations encountered by a DS3/E3 interface.

FE Count

Number of Framing Pattern Errors encountered by a DS3/E3 interface.

LCV Current

Number of Line Code Violations encountered by the interface.

LCV 15 Min Bucket

Number of Line Code Violations in the last 15-minute period encountered by the interface.

LCV 24 Hr Bucket

Number of Line Code Violations in the last 24-hour period encountered by the interface.

LES Current

Number of Line Code Violations Errored Seconds encountered by the interface.

LES 15 Min Bucket

Number of Line Code Violations Errored Seconds in the last 15-minute period encountered by the interface.

LES 24 Hr Bucket

Number of Line Code Violations Errored Seconds in the last 24-hour period encountered by the interface.

LSES Current

Number of Line Code Violations Severely Errored Seconds encountered by the interface.

LSES 15 Min Bucket

Number of Line Code Violations Severely Errored Seconds in the last 15-minute period encountered by the interface.

LSES 24 Hr Bucket

Number of Line Code Violations Severely Errored Seconds in the last 24-hour period encountered by the interface.

PCV Current

Number of P-Bit Code Violations encountered by the interface.

PCV 15 Min Bucket

Number of P-Bit Code Violations in the last 15-minute period encountered by the interface.

PCV 24 Hr Bucket

Number of P-Bit Code Violations in the last 24-hour period encountered by the interface.

Dsx3 Counters (2 of 2)


Figure 11-4: dsx3 Counters (2 of 2) Dialog


The dsx3 Counters (2 of 2) dialog parameters are described in Table 11-5.


Table 11-5: dsx3 Counters (2 of 2) Parameters
Parameter Description

dsx3CounterClrButton

Clears all dsx3 counters. Choose noAction or clear.

dsx3LineAlarmClrButton

Clears all dsx3 line alarms. Choose noAction or clear.

PES Current

Number of P-Bit Code Violations Severely Errored Seconds encountered by the interface.

PES 15 Min Bucket

Number of PCV Severely Errored Seconds in the last 15-minute period encountered by the interface.

PES 24 Hr Bucket

Number of PCV Severely Errored Seconds in the last 24-hour period encountered by the interface.

PSES Current

Number of Severely Errored Framing Seconds encountered by the interface.

PSES 15 Min Bucket

Number of PCV Severely Errored Seconds in the last 15-minute period encountered by the interface.

PSES 24 Hr Bucket

Number of PCV Severely Errored Seconds in the last 24-hour period encountered by the interface.

SEFS Current

Number of Severely Errored Framing Seconds encountered by the interface.

SEFS 15 Min Bucket

Number of Severely Errored Framing Seconds in the last 15-minute period encountered by the interface.

SEFS 24 Hr Bucket

Number of Severely Errored Framing Seconds in the last 24-hour period encountered by the interface.

AISS Current

Number of AIS Severely Errored Seconds encountered by the interface.

AISS 15 Min Bucket

Number of AIS Severely Errored Seconds in the last 15-minute period encountered by the interface.

AISS 24 Hr Bucket

Number of AIS Severely Errored Seconds in the last 24-hour period encountered by the interface.

UAS Current

Number of Unavailable Seconds encountered by the interface.

UAS 15 Min Bucket

Number of Unavailable Seconds in the last 15-minute period encountered by the interface.

UAS 24 Hr Bucket

Number of Unavailable Seconds in the last 24-hour period encountered by the interface.

Percent LCV EFS

Percentage of seconds without any LCV Errors in the total elapsed seconds.

To modify the parameters, make the changes you want and click Modify.

SRM Counters

Use the SRM Counters dialog to view and configure SRM counters. (See Figure 11-5.)


Figure 11-5: SRM Counters Dialog


The SRM Counters dialog parameters are described in Table 11-6.


Table 11-6: SRM Counters Dialog Parameters
Parameter Description

Rcv PERR Counter

Number of P-bit Parity Errors.

Rcv FEBE Counter

Number of Far-End Block Errors.

SRM Line Distribution (SRM 3T3)

Use the SRM Line Distribution (SRM 3T3) dialog to view and configure line distribution on an SRM 3T3 line. (See Figure 11-6.)


Figure 11-6: SRM Line Distribution (SRM3T3) Dialog


The SRM Line Distribution (SRM 3T3) dialog parameters are described in Table 11-7.


Table 11-7: SRM Line Distribution (SRM3T3) Dialog Parameters
Parameter Description

SRM T3 Line No.

T3 line number.

SRM Start T1 Line No.

Start T1 number to be affected.

SRM T1 Row Status

Used to add, delete, or modify one or more DS1 mapping.

SRM Target Slot No.

Specifies the target slot number to be linked.

SRM Target Slot Line No.

Specifies the target slot line number to be linked. 0 means not assigned.


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Posted: Fri Sep 29 13:11:49 PDT 2000
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