-- -- Copyright 1999 by Fore Systems, Inc. -- Converted to SMIv2 rfc 2578,2579,2580 - STD 58 -- -- Copyright 1993-1999 by Fore Systems, Inc. Fore-DS3-MIB DEFINITIONS ::= BEGIN IMPORTS Counter32, Integer32, OBJECT-TYPE, MODULE-IDENTITY FROM SNMPv2-SMI asx FROM Fore-Common-MIB; ------------------------------------------------------------------------ -- The implementation of the foreDs3 tables is mandatory -- for all switches that have DS3 port module. foreDs3 MODULE-IDENTITY LAST-UPDATED "9911050000Z" ORGANIZATION "FORE" CONTACT-INFO " Postal: FORE Systems Inc. 1000 FORE Drive Warrendale, PA 15086-7502 Tel: +1 724 742 6900 Email: nm_mibs@fore.com Web: http://www.fore.com" DESCRIPTION " This MIB module supports the FORE DS3 port module." ::= { asx 3 } ds3ConfGroup OBJECT IDENTIFIER ::= { foreDs3 1 } ds3StatsGroup OBJECT IDENTIFIER ::= { foreDs3 2 } ------------------------------------------------------------------------ -- The DS3 configuration Group ds3ConfTable OBJECT-TYPE SYNTAX SEQUENCE OF Ds3ConfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A table of DS3 switch port configuration information." ::= { ds3ConfGroup 1 } ds3ConfEntry OBJECT-TYPE SYNTAX Ds3ConfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A table entry containing DS3 configuration information for each port. Not all RFC1407 configuration table variables are included, and some are modified." INDEX { ds3ConfBoard, ds3ConfModule, ds3ConfPort } ::= { ds3ConfTable 1 } Ds3ConfEntry ::= SEQUENCE { ds3ConfBoard Integer32, ds3ConfModule Integer32, ds3ConfPort Integer32, ds3LineType INTEGER, ds3LineCoding INTEGER, ds3SendCode INTEGER, ds3ReceiveCode INTEGER, ds3LoopbackConfig INTEGER, ds3TxClockSource INTEGER, ds3RxScrambling INTEGER, ds3TxScrambling INTEGER, ds3LineStatus Integer32, ds3IdleUnassignedCells INTEGER, ds3LineTypeFraming INTEGER, ds3LineLength INTEGER, ds3PbitPErrThrSeconds Integer32, ds3PbitPErrThrErrors Integer32, ds3PbitPErrFailEnable INTEGER, ds3SigFailBer Integer32, ds3SigDegradeBer Integer32, ds3BerErrorModel INTEGER, ds3BerState INTEGER } ds3ConfBoard OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The index of this port's switch board." ::= { ds3ConfEntry 1 } ds3ConfModule OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The network module of this port." ::= { ds3ConfEntry 2 } ds3ConfPort OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of this port." ::= { ds3ConfEntry 3 } ds3LineType OBJECT-TYPE SYNTAX INTEGER { ds3Other (1), ds3M23 (2), ds3SYNTRAN (3), ds3CbitParity (4), ds3ClearChannel (5) } MAX-ACCESS read-write STATUS current DESCRIPTION "This variable indicates the variety of DS3 C-bit application implementing this interface. The type of interface affects the interpretation of the usage and error statistics. This variable is defined in the rfc1407 configuration table as dsx3LineType. According to rfc1407, the different values are: ds3M23 specification: ANSI T1.107-1988 ds3SYNTRAN specification: ANSI T1.107-1988 ds3CbitParity specification: ANSI T1.107a-1989 ds3CleatChannel specification: ANSI T1.102-1987." DEFVAL { ds3CbitParity } ::= { ds3ConfEntry 4 } ds3LineCoding OBJECT-TYPE SYNTAX INTEGER { ds3Other (1), ds3B3ZS (2) } MAX-ACCESS read-only STATUS current DESCRIPTION "This variable describes the variety of Zero Code suppression used on this interface, which in turn affects a number of its characteristics. ds3B3ZS (2) refers to the use of specified pattern of normal bits and bipolar violations which are used to replaced sequences of zero bits of specified length. This variable is defined in the rfc1407 configuration table as dsx3LineCoding." DEFVAL { ds3B3ZS } ::= { ds3ConfEntry 5 } ds3SendCode OBJECT-TYPE SYNTAX INTEGER { ds3SendNoCode (1), ds3SendLineCode (2), ds3SendPayloadCode (3), ds3SendResetCode (4), ds3SendDS1LoopCode (5), ds3SendTestPattern (6) } MAX-ACCESS read-write STATUS current DESCRIPTION "This variable indicates what type of code is being sent across the DS3/E3 interface by the device. The values mean: ds3SendNoCode sending looped or normal data ds3SendLineCode sending request for a line loopback ds3SendPayloadCode sending a request for a payload loopback (i.e. all DS1/E1 in a DS3/E3 frame) ds3SendResetCode sending a loopback deactivation request ds3SendDS1LoopCode requesting to loopback a particular DS1/E1 within a DS3/E3 frame ds3SendTestPattern sending a test pattern." DEFVAL { ds3SendNoCode } ::= { ds3ConfEntry 6 } ds3ReceiveCode OBJECT-TYPE SYNTAX INTEGER { ds3ReceiveNoCode (1), ds3ReceiveLineCode (2), ds3ReceivePayloadCode (3), ds3ReceiveResetCode (4), ds3ReceiveDS1LoopCode (5), ds3ReceiveTestPattern (6) } MAX-ACCESS read-only STATUS current DESCRIPTION "This variable indicates the type of code that was received across the DS3/E3 interface. The values mean: ds3ReceiveNoCode receiving looped or normal data ds3ReceiveLineCode receiving request for a line loopback ds3ReceivePayloadCode receiving a request for a payload loopback (i.e. all DS1/E1 in a DS3/E3 frame) ds3ReceiveResetCode receiving a loopback deactivation request ds3ReceiveDS1LoopCode receiving a request to loopback a particular DS1/E1 within a DS3/E3 frame ds3ReceiveTestPattern receiving a test pattern." DEFVAL { ds3ReceiveNoCode } ::= { ds3ConfEntry 7 } ds3LoopbackConfig OBJECT-TYPE SYNTAX INTEGER { ds3NoLoop (1), ds3CellLoop (2), ds3PayloadLoop (3), ds3DiagLoop (4), ds3LineLoop (5), ds3OtherLoop (6) } MAX-ACCESS read-write STATUS current DESCRIPTION "This variable represents the loopback configuration of the DS3 interface. This variable is defined in the rfc1407 configuration table as dsx3LoopbackConfig, with slightly different values. ds3NoLoop (1) means that the interface is not in a loopback state. ds3CellLoop (2) means that cells that are processed by the receiving component are not written into the receive FIFO, but into the transmit FIFO for retransmission. ds3PayloadLoop (3) means that the receive signal is looped back for retransmission after it has passed through the port's reframing function. ds3DiagLoop (4) means that the transmit data stream is looped back to the receiver. ds3LineLoop (5) is only supported on series B and later netmods. ds3OtherLoop (6) means that the interface is in a loopback that is not defined here." DEFVAL { ds3NoLoop } ::= { ds3ConfEntry 8 } ds3TxClockSource OBJECT-TYPE SYNTAX INTEGER { rxTiming (1), localTiming (2) } MAX-ACCESS read-write STATUS current DESCRIPTION "The source of the transmit clock." DEFVAL { localTiming } ::= { ds3ConfEntry 9 } ds3RxScrambling OBJECT-TYPE SYNTAX INTEGER { descrambling(1), noDescrambling(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This variable indicates whether the information is being descrambled on receiving. It should be set the same as the transmitting side." DEFVAL { noDescrambling } ::= { ds3ConfEntry 10 } ds3TxScrambling OBJECT-TYPE SYNTAX INTEGER { scrambling(1), noScrambling(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This variable indicates whether the information (48 octet payload) is being scrambled before transmitting. It should be set the same as the receiving side." DEFVAL { noScrambling } ::= { ds3ConfEntry 11 } ds3LineStatus OBJECT-TYPE SYNTAX Integer32 (1..65534) MAX-ACCESS read-only STATUS current DESCRIPTION "This variable indicates the Line Status of the interface. A similar object is defined in the rfc1407 configuration table as dsx3LineStatus (the ds3RxFERF bit is not defined in rfc1407) . The variable contains loopback state information and failure state information. It is a bit map represented as a sum. The ds3NoAlarm should be set if and only if no other flag is set. The various bit positions are: 1 No Alarm. 2 Receiving PLCP Yellow Alarm Indication. 4 Transmitting PLCP Yellow alarm indication. 8 Receiving PLCP LOF. 16 Receiving FERF. 32 Transmiting FERF. 64 Receiving AIS failure indication. 128 Receiving LOF failure indication. 256 Receiving LOS failure indication. 512 Loopback State. 1024 Receiving a test pattern. 2048 Other failures. 16384 Receiving IDLE failure indication. 32768 Receiving LCD failure indication." DEFVAL { 1 } ::= { ds3ConfEntry 12 } ds3IdleUnassignedCells OBJECT-TYPE SYNTAX INTEGER { unassigned(1), idle(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This variable indicates the types of cells that should be sent in case there is no real data to send. According to the ATM Forum, Unassigned cells should be sent (octet 1-3 are 0's, octet 4 is 0000xxx0, where x is 'don't care'). According to the CCITT specifications, Idle cells should be sent (everything is '0' except for the CLP bit which is '1'). By default, unassigned cells are transmitted is case there is no data to send." DEFVAL { unassigned } ::= { ds3ConfEntry 13 } ds3LineTypeFraming OBJECT-TYPE SYNTAX INTEGER { ds3Hcs (1), ds3Plcp (2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This variable indicates the way ATM cells are constructed from the DS3 stream. ds3Hcs(1) indicates that the ATM cells are constructed upon the Header Check Sequence (HCS) inside the ATM cell header. ds3Plcp(2) indicates that the ATM cells are constructed from the DS3 PLCP (Physical Layer Convergence Protocol) bits." DEFVAL { ds3Hcs } ::= { ds3ConfEntry 14 } ds3LineLength OBJECT-TYPE SYNTAX INTEGER { ds3LineLt225 (1), ds3LineGt225 (2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This variable represents the length of the physical cable connected to the ds3 port. The user has to set this object to match the physical cable in order to get the netmod to receive the signal on the cable. The different values are: ds3LineLt225 (1) means the line is shorter than 225 ft, ds1LineGt225 (2) means the line length is greater than 220 ft. This value is not settable for Series A netmods and the value for these netmods is Gt225" DEFVAL { ds3LineGt225 } ::= { ds3ConfEntry 15 } ds3PbitPErrThrSeconds OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-write STATUS current DESCRIPTION "This variable represents the consecutive number of BAD/GOOD seconds to detect/clear an Excessive P-bit Parity Error Defect. The range of values it can take is between 2 and 10 inclusive." DEFVAL { 10 } ::= { ds3ConfEntry 16 } ds3PbitPErrThrErrors OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-write STATUS current DESCRIPTION "This variable is a threshold for the number of P-bit Parity Errors per second and is used as a parameter to the Excessive P-bit Parity Error Defect. If the number of errors exceeds the threshold, the particular second is declared BAD, otherwise it is declared GOOD." ::= { ds3ConfEntry 17 } ds3PbitPErrFailEnable OBJECT-TYPE SYNTAX INTEGER { enabled(1), disabled(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This variable controls whether declaration of an Excessive P-bit Parity Error Defect forces the port's operState to Down." ::= { ds3ConfEntry 18 } ds3SigFailBer OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-write STATUS current DESCRIPTION "This is the exponent of 10 for the current signal fail bit error rate (BER) threshold for this port. The value -4, for example, represents a BER of 1E-4. This variable is only applicable when ds3BerErrorModel is set to errorModelRandom." ::= { ds3ConfEntry 19 } ds3SigDegradeBer OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-write STATUS current DESCRIPTION "This is the exponent of 10 for the current signal degrade bit error rate (BER) threshold for this port. The value -8, for example, represents a BER of 1E-8. This variable is only applicable when ds3BerErrorModel is set to errorModelRandom." ::= { ds3ConfEntry 20 } ds3BerErrorModel OBJECT-TYPE SYNTAX INTEGER { errorModelNone(0), errorModelRandom(1), errorModelBurst(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This is the error distribution model to be used to identify signal degrade and signal fail conditions. errorModelRandom selects a random error distribution and declares signal conditions based on the thresholds set in ds3SigDegradeBer and ds3SigFailBer. errorModelBurst selects a burst error model and declares signal degrade conditions based on the thresholds set in ds3PErrThrSeconds and ds1PErrThrErrors. errorModelNone disables detection of signal conditions." ::= { ds3ConfEntry 21 } ds3BerState OBJECT-TYPE SYNTAX INTEGER { berStateOk(0), berStateSigDegrade(1), berStateSigFail(2) } MAX-ACCESS read-only STATUS current DESCRIPTION "This value describes the current state of the port as determined through bit error rate analysis." ::= { ds3ConfEntry 22 } ------------------------------------------------------------------------ -- The DS3 Statistics Group ds3FramingTable OBJECT-TYPE SYNTAX SEQUENCE OF Ds3FramingEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A table of DS3 framing statistics information." ::= { ds3StatsGroup 1 } ds3FramingEntry OBJECT-TYPE SYNTAX Ds3FramingEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A table entry containing DS3 framing statistics information." INDEX { ds3FramingBoard, ds3FramingModule, ds3FramingPort } ::= { ds3FramingTable 1 } Ds3FramingEntry ::= SEQUENCE { ds3FramingBoard Integer32, ds3FramingModule Integer32, ds3FramingPort Integer32, ds3FramingLOSs Counter32, ds3FramingLCVs Counter32, ds3FramingSumLCVs Counter32, ds3FramingFERRs Counter32, ds3FramingOOFs Counter32, ds3FramingFERFs Counter32, ds3FramingAISs Counter32, ds3FramingPbitPERRs Counter32, ds3FramingCbitPERRs Counter32, ds3FramingFEBEs Counter32, ds3FramingIDLEs Counter32 } ds3FramingBoard OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The index of this port's switch board." ::= { ds3FramingEntry 1 } ds3FramingModule OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The network module of this port." ::= { ds3FramingEntry 2 } ds3FramingPort OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of this port." ::= { ds3FramingEntry 3 } ds3FramingLOSs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of seconds in which Loss Of Signal (LOS) errors were detected by the DS3 Receive Framer block." ::= { ds3FramingEntry 4 } ds3FramingLCVs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of Line Code Violations (LCV) that were detected by the DS3 Receive Framer block." ::= { ds3FramingEntry 5 } ds3FramingSumLCVs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DS3 information blocks (85 bits) which contain one or more Line Code Violations (LCV)." ::= { ds3FramingEntry 6 } ds3FramingFERRs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of DS3 framing error (FERR) events." ::= { ds3FramingEntry 7 } ds3FramingOOFs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of seconds DS3 Out Of Frame (OOF) error events were experienced." ::= { ds3FramingEntry 8 } ds3FramingFERFs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of seconds in which Far End Receive Failure (FERF) state has been detected by the DS3 Receive Framer block. FERF signal alerts the upstream terminal that a failure has been detected along the downstream line." ::= { ds3FramingEntry 9 } ds3FramingAISs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of seconds in which Alarm Indication Signals (AIS) were detected by the DS3 Receive Framer block. AIS indicates that an upstream failure has been detected by the far end." ::= { ds3FramingEntry 10 } ds3FramingPbitPERRs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of P-bit parity error (PERR) events." ::= { ds3FramingEntry 11 } ds3FramingCbitPERRs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of C-bit parity error (PERR) events." ::= { ds3FramingEntry 12 } ds3FramingFEBEs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of DS3 far end block error (FEBE) events." ::= { ds3FramingEntry 13 } ds3FramingIDLEs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of seconds in which IDLE signal was detected by the DS3 Receive Framer block." ::= { ds3FramingEntry 14 } ------------------------------------------------------------------------ ds3PlcpTable OBJECT-TYPE SYNTAX SEQUENCE OF Ds3PlcpEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A table of DS3 Physical Layer Convergence Protocol (Procedure) statistics information." ::= { ds3StatsGroup 2 } ds3PlcpEntry OBJECT-TYPE SYNTAX Ds3PlcpEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A table entry containing DS3 PLCP statistics information." INDEX { ds3PlcpBoard, ds3PlcpModule, ds3PlcpPort } ::= { ds3PlcpTable 1 } Ds3PlcpEntry ::= SEQUENCE { ds3PlcpBoard Integer32, ds3PlcpModule Integer32, ds3PlcpPort Integer32, ds3PlcpFERRs Counter32, ds3PlcpLOFs Counter32, ds3PlcpBIP8s Counter32, ds3PlcpFEBEs Counter32, ds3PlcpYellows Counter32 } ds3PlcpBoard OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The index of this port's switch board." ::= { ds3PlcpEntry 1 } ds3PlcpModule OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The network module of this port." ::= { ds3PlcpEntry 2 } ds3PlcpPort OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of this port." ::= { ds3PlcpEntry 3 } ds3PlcpFERRs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of Physical Layer Convergence Protocol (PLCP) octet error events." ::= { ds3PlcpEntry 4 } ds3PlcpLOFs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of seconds in which Loss Of Frame (LOF) errors were detected by the PLCP (Physical Layer Convergence Protocol) receiver. LOF is declared when an Out-Of-Frame state persists for more than 1ms. LOF is removed when in-frame state persists for more than 12ms." ::= { ds3PlcpEntry 5 } ds3PlcpBIP8s OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of BIP-8 (Bit Interleaved Parity - 8) error events. The BIP-8 is calculated over the Path Overhead field and the associated ATM cell of the previous frame. A BIP-N is a method of error monitoring. An N bit code is generated by the transmitting equipment in such a manner that the first bit of the code provides even parity over the first bit of all N-bit sequences in the previous VT SPE, the second bit provides even parity over the second bits of all N-bit sequences within the specified portion, etc." ::= { ds3PlcpEntry 6 } ds3PlcpFEBEs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of ATM Far End Block Error (FEBE) events." ::= { ds3PlcpEntry 7 } ds3PlcpYellows OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of seconds in which Yellow alarm errors were detected by the PLCP (Physical Layer Convergence Protocol) receiver. Yellow alarm is asserted when 10 consecutive yellow signal bits are set to logical 1. Yellow signals are used to alert upstream terminals of a downstream failure in order to initiate trunk conditioning on the failure circuit." ::= { ds3PlcpEntry 8 } ------------------------------------------------------------------------ ds3AtmTable OBJECT-TYPE SYNTAX SEQUENCE OF Ds3AtmEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A table of DS3 ATM statistics information." ::= { ds3StatsGroup 3 } ds3AtmEntry OBJECT-TYPE SYNTAX Ds3AtmEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A table entry containing DS3 ATM statistics information." INDEX { ds3AtmBoard, ds3AtmModule, ds3AtmPort } ::= { ds3AtmTable 1 } Ds3AtmEntry ::= SEQUENCE { ds3AtmBoard Integer32, ds3AtmModule Integer32, ds3AtmPort Integer32, ds3AtmHCSs Counter32, ds3AtmRxCells Counter32, ds3AtmTxCells Counter32, ds3AtmLCDs Counter32 } ds3AtmBoard OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The index of this port's switch board." ::= { ds3AtmEntry 1 } ds3AtmModule OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The network module of this port." ::= { ds3AtmEntry 2 } ds3AtmPort OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of this port." ::= { ds3AtmEntry 3 } ds3AtmHCSs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of header check sequence (HCS) error events. The HCS is a CRC-8 calculation over the first 4 octets of the ATM cell header." ::= { ds3AtmEntry 4 } ds3AtmRxCells OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of ATM cells that were received." ::= { ds3AtmEntry 5 } ds3AtmTxCells OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of non-null ATM cells that were transmitted." ::= { ds3AtmEntry 6 } ds3AtmLCDs OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of seconds in which Loss of Cell Delineation (LCD) has occurred. An LCD defect is detected when an out of cell delination state has persisted for 4ms. An LCD defect is cleared when the sync state has been maintained for 4ms." ::= { ds3AtmEntry 7 } END