Fore-SONET-MIB

All MIBs › Fore-SONET-MIB

Organization: FORE

Last Updated: 1999-11-05

Category: ATM, Domain: WAN/TDM, Technology: Optical Transport, Vendor: Fore Systems (ATM)

Description: Fore Systems SONET interface MIB providing OC-3 and OC-12 physical layer performance and alarm management for ForeRunner switch SONET ports.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

What Is Fore-SONET-MIB?

Fore-SONET-MIB is a Fore Systems vendor MIB for the SONET/SDH port modules installed in ForeRunner ATM switches, and is mandatory on any switch equipped with such modules. It exposes physical-layer configuration and statistics for OC-3/OC-12 SONET ports, including line type, line coding, framing standard, path width, loopback configuration, and transmit clock source, alongside a stats group of performance counters. It is squarely aimed at monitoring the hardware status of the optical transport layer: a mismatch between configured and operational framing standard, an active loopback, or a degraded line-coding/clock-source setting are all direct indicators of a failing or misconfigured SONET port. It builds on the conventions of the IETF SONET/SDH interface MIB framework (RFC 1595) for its statistics and alarm structure. It is deployed in WAN/MAN environments where Fore ATM switches terminate fiber SONET links to carrier or campus backbone equipment. Engineers can download the Fore-SONET-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Fore-SONET-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Fore Systems ForeRunner ATM switch with SONET/SDH port modules

Monitoring Examples

An administrator would poll the sonetConfTable (indexed by sonetConfBoard/sonetConfModule/sonetConfPort) to check sonetFramingStandardOper against sonetFramingStandardDefault, where a mismatch indicates the port negotiated a different framing than intended. Checking sonetLoopbackConfig confirms whether a port has been left in test loopback mode, which would explain an unexpected loss of end-to-end traffic, while the sonetStatsGroup counters reveal rising error rates consistent with a degrading fiber link or clock source problem.

What Can Be Monitored

SONET line type and coding
framing standard (configured vs operational)
loopback configuration
transmit clock source
SONET port error/performance statistics

Imported Objects

From Fore-Common-MIB

asx	OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using sonetSectionBIPs OID:

Select a Fore Systems (later Marconi) ForeRunner ATM switch with SONET/SDH port module as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type sonetSectionBIPs into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of Section BIP-8 (Bit Interleaved Parity) errors that have been detected since the last time the port has been reset. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
foreSonetModule	1.3.6.1.4.1.326.2.2.1.1.4			The implementation of the foreSonet tables is mandatory for all switches that have SONET/SDH port modules.
I32 sonetArbitraryPointer	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.25	Integer32	read-write	This variable controls bits APTR[9:0] of arbitrary pointer register. It may be used along with the sonetPathPointerDiagnostic variable to generate LOP errors on the outgoing stream.
I32 sonetAtmBoard	1.3.6.1.4.1.326.2.2.1.1.4.2.4.1.1	Integer32	read-only	The index of this port's switch board.
C32 sonetAtmCorrectableHCSs	1.3.6.1.4.1.326.2.2.1.1.4.2.4.1.4	Counter32	read-only	The number of correctable Header Check Sequence (HCS) error events that occurred since the port was reset. The HCS is a CRC-8 calculation over the first 4 octets of the ATM cell header. The value of this variable reflects the number of single bit HCS errors, that were corrected.
I32 sonetAtmDiagnostic	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.30	Integer32	read-write	This variable controls the insertion of various types of atm diagnostic bit patterns in the transmit stream. It is a bit map that is netmod specific. Under normal operation it should be set to: 1 None -- No diagnostics 2 DHCS -- Controls the insertion of HCS errors. When DHCS is on, the HCS octet is inverted prior to insertion in the synchronous payload envelope. DHCS takes effect unconditionally regardless of whether a null/unassigned cell is being transmitted or whether the HCS octet has been read from the FIFO.
sonetAtmEntry	1.3.6.1.4.1.326.2.2.1.1.4.2.4.1		not-accessible	A table entry containing SONET ATM layer statistics and errors information for every port.
C32 sonetAtmLCDs	1.3.6.1.4.1.326.2.2.1.1.4.2.4.1.6	Counter32	read-only	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.
I32 sonetAtmModule	1.3.6.1.4.1.326.2.2.1.1.4.2.4.1.2	Integer32	read-only	The network module of this port.
I32 sonetAtmPort	1.3.6.1.4.1.326.2.2.1.1.4.2.4.1.3	Integer32	read-only	The number of this port.
INT sonetAtmStatus	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.17	INTEGER	read-only	This variable indicates the ATM Status of the interface. The variable is a bit map represented as a sum, therefore, it can represent multiple defects simultaneously. The sonetAtmNoDefect should be set if and only if no other flag is set. The various bit positions are: 1 sonetAtmNoDefect 2 sonetAtmLCD Loss of Cell Delineation was detected. LCD is declared when a 'normal pointer value' is not found for eight consecutive frames.
sonetAtmTable	1.3.6.1.4.1.326.2.2.1.1.4.2.4		not-accessible	A table of SONET ATM layer statistics and errors information.
C32 sonetAtmUncorrectableHCSs	1.3.6.1.4.1.326.2.2.1.1.4.2.4.1.5	Counter32	read-only	The number of uncorrectable Header Check Sequence (HCS) error events that occurred since the port was reset. The HCS is a CRC-8 calculation over the first 4 octets of the ATM cell header.
I32 sonetConfBoard	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.1	Integer32	read-only	The index of this port's switch board.
sonetConfEntry	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1		not-accessible	A table entry containing SONET configuration information for each port.
sonetConfGroup	1.3.6.1.4.1.326.2.2.1.1.4.1
I32 sonetConfModule	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.2	Integer32	read-only	The network module of this port.
I32 sonetConfPort	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.3	Integer32	read-only	The number of this port.
sonetConfTable	1.3.6.1.4.1.326.2.2.1.1.4.1.1		not-accessible	A table of SONET switch port configuration information.
INT sonetFebe	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.22	INTEGER	read-write	This variable controls the insertion of line and path far end block errors. When set to sonetFebeAuto, one line or path FEBE is inserted for each line or path BIP error event, respectively. When set to sonetFebeOff, incoming line or path BIP error events do not generate FEBE events.
INT sonetFramingStandardDefault	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.6	INTEGER	read-only	This variable identify the default value of the framing standard that is used by this port (SONET or SDH).
INT sonetFramingStandardOper	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.7	INTEGER	read-write	This variable identify the operational value of the framing standard that is used by this port (SONET or SDH).
INT sonetIdleUnassignedCells	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.16	INTEGER	read-write	This variable indicates the type of cells that should be sent in case there is no 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 in case there is no data to send.
INT sonetLineAis	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.18	INTEGER	read-write	This variable controls the insertion of line alarm indication signal (AIS_L). When set to sonetLineAisOn, AIS is inserted into the transmit SONET stream. Line AIS insertion results in all bits of the SONET frame being set to 1 prior to scrambling except for the section overhead.
C32 sonetLineAISs	1.3.6.1.4.1.326.2.2.1.1.4.2.2.1.6	Counter32	read-only	The number of seconds in which line Alarm Indication Signal (AIS) has occurred. A line AIS is asserted when a 111 binary pattern is detected in bits 6,7,8 of the K2 byte for five consecutive frames. A line AIS is removed when any pattern other than 111 is detected in these bits for five consecutive frames.
INT sonetLineBerErrorModel	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.36	INTEGER	read-write	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 sonetLineSignalDegradeBer and sonetLineSignalFailBer. errorModelBurst selects a burst error model and declares signal degrade conditions based on the thresholds set in sonetLineBipThrSeconds and sonetLineBipThrErrors. errorModelNone disables detection of signal conditions.
INT sonetLineBerState	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.37	INTEGER	read-only	This value describes the current state of the port as determined through bit error rate analysis.
INT sonetLineBipFailEnable	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.33	INTEGER	read-write	This variable controls whether declaration of a Line BIP Defect forces the port's operState to Down. This variable is only applicable when sonetLineBerErrorModel is set to errorModelBurst.
C32 sonetLineBIPs	1.3.6.1.4.1.326.2.2.1.1.4.2.2.1.4	Counter32	read-only	The number of Line BIP-24 (Bit Interleaved Parity) errors that have been detected since the last time the port has been reset. The calculated BIP-24 code is based on the line overhead and synchronous payload envelope (SPE) of the STS-3c stream. The line BIP-24 code is a bit interleaved parity calculation using even parity. The calculated code is compared with the BIP-24 code extracted from the B2 bytes of the following frame. Differences indicate that a line layer bit error has occurred.
I32 sonetLineBipThrErrors	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.32	Integer32	read-write	This variable is a threshold for the number of B2 byte Line Bit Interleaved Parity (BIP) Errors per second and is used as a parameter to the Line BIP Defect. If the number of errors exceeds the threshold, the particular second is declared BAD, otherwise it is declared GOOD. This variable is only applicable when sonetLineBerErrorModel is set to errorModelBurst.
I32 sonetLineBipThrSeconds	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.31	Integer32	read-write	This variable represents the consecutive number of BAD/GOOD seconds to detect/clear a B2 byte Line Bit Interleaved Parity (BIP) Defect. The range of the values it can take is between 2 and 10 inclusive. This variable is only applicable when sonetLineErrorModel is set to errorModelBurst.
I32 sonetLineBoard	1.3.6.1.4.1.326.2.2.1.1.4.2.2.1.1	Integer32	read-only	The index of this port's switch board.
INT sonetLineCoding	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.5	INTEGER	read-only	This variable describes the line coding for this interface. The B3ZS and CMI are used for electrical SONET signals (STS-1 and STS-3). The Non-Return to Zero (NRZ) and the Return to Zero (RZ) are used for optical SONET signals. This variable is defined in the SONET IETF draft photonic table as sonetPhotonicLineCoding.
I32 sonetLineDiagnostic	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.27	Integer32	read-write	This variable controls the insertion of various types of line diagnostic bit patterns in the transmit stream. It is a bit map that is netmod specific. Under normal operation it should be set to: 1 None -- No diagnostics 2 DBIP24 -- Controls the insertion of bit errors continuously in the line BIP bytes (B2). When DBIP24 is on, the B2 bytes are inverted.
sonetLineEntry	1.3.6.1.4.1.326.2.2.1.1.4.2.2.1		not-accessible	A table entry containing SONET Line statistics and errors information for every port.
C32 sonetLineFEBEs	1.3.6.1.4.1.326.2.2.1.1.4.2.2.1.5	Counter32	read-only	The number of line Far End Block Errors (FEBE) that have been detected since the last time the port has been reset.
I32 sonetLineModule	1.3.6.1.4.1.326.2.2.1.1.4.2.2.1.2	Integer32	read-only	The network module of this port.
I32 sonetLinePort	1.3.6.1.4.1.326.2.2.1.1.4.2.2.1.3	Integer32	read-only	The number of this port.
INT sonetLineRdi	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.19	INTEGER	read-write	The variable controls the insertion of Line Remote Defect Indication (RDI_L). When set to sonetLineRdiAuto, RDI_L is automatically inserted into the transmit SONET stream whenever a Loss Of Signal (LOS), Loss Of Frame (LOF), or Line AIS (AIS_L) is detected. When set to sonetLineRdiOn, RDI_L is always inserted into the transmit SONET stream. Line RDI is inserted by transmitting the code 110 in bit positions 6, 7, and 8 of the K2 byte of the transmit stream.
C32 sonetLineRDIs	1.3.6.1.4.1.326.2.2.1.1.4.2.2.1.7	Counter32	read-only	The number of seconds in which line Far End Receive Failure (RDI) has occurred. A line RDI is asserted when a 110 binary pattern is detected in bits 6,7,8 of the K2 byte for five consecutive frames. A line RDI is removed when any pattern other than 110 is detected in these bits for five consecutive frames.
I32 sonetLineSignalDegradeBer	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.34	Integer32	read-write	This is the exponent of 10 for the current signal degrade bit error rate (BER) threshold for this port. The value -7, for example, represents a BER of 1E-7. This variable is only applicable when sonetLineBerErrorModel is set to errorModelRandom.
I32 sonetLineSignalFailBer	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.35	Integer32	read-write	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 sonetLineBerErrorModel is set to errorModelRandom.
INT sonetLineStatus	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.14	INTEGER	read-only	This variable indicates the Line Status of the interface. A similar variable is defined in the SONET IETF draft line configuration table as sonetLineStatus. The variable is a bit map represented as a sum, therefore, it can represent multiple defects simultaneously. The sonetLineNoDefect should be set if and only if no other flag is set. The various bit positions are: 1 sonetLineNoDefect 2 sonetLineAIS Line Alarm Indication Signal was detected. Line AIS is asserted when a 111 binary pattern is detected in bits 6,7,8 of the K2 byte for five consecutive frames. 4 sonetLineRDI Line Remote Defect Indication was detected. RDI is asserted when a 110 binary pattern is detected in bits 6,7,8 of the K2 byte for five consecutive frames.
sonetLineTable	1.3.6.1.4.1.326.2.2.1.1.4.2.2		not-accessible	A table of SONET Line statistics and errors information.
INT sonetLineType	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.4	INTEGER	read-only	This variable describes the line type for this interface. The line type for optical SONET signals may be single-mode (short or long range) or multi-mode fiber. For electrical interfaces, the line type is Unshielded Twisted Pair (UTP) or coax. This variable is defined in the SONET IETF draft photonic table as sonetPhotonicLineType with some different values.
INT sonetLoopbackConfig	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.9	INTEGER	read-write	This variable represents the current loopback status of the SONET interface. The possible values are: sonetNoLoop (1) means that the interface is not in a loopback state. sonetLineLoop (2) means that the receive data and clock are connected to the transmit data and clock. sonetDiagLoop (3) means that the transmit data stream and clock are looped back to the receiver. sonetOtherLoop (4) means that the interface is in a loopback that is not defined here. sonetPathLoop (5) means that the loopback point is between the TPOP and RPOP blocks and the transmit parallel stream is connected to the receive stream.
INT sonetPathAis	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.20	INTEGER	read-write	This variable controls the insertion of STS Path Alarm Indication Signal (AIS_P). When set to sonetPathAisOn, the complete SPE, and the pointer bytes (H1, H2, and H3) are overwritten with the all ones pattern. When set to sonetPathAisOff, the pointer bytes and the SPE are processed normally.
C32 sonetPathAISs	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.7	Counter32	read-only	The number of seconds in which path Alarm Indication Signal (AIS) has occurred. A path AIS is asserted when an all-ones pattern is detected in the pointer bytes (H1 and H2) for three consecutive frames. It is cleared when a valid pointer is detected for three consecutive frames. AIS indicates that an upstream failure has been detected.
C32 sonetPathBIPs	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.4	Counter32	read-only	The number of Path BIP-8 (Bit Interleaved Parity) errors that have been detected since the last time the port has been reset. A path BIP-8 error is detected by comparing the path BIP-8 byte (B3) extracted from the current frame, to the path BIP-8 computed for the previous frame.
I32 sonetPathBoard	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.1	Integer32	read-only	The index of this port's switch board.
I32 sonetPathDiagnostic	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.28	Integer32	read-write	This variable controls the insertion of various types of path diagnostic bit patterns in the transmit stream. It is a bit map that is netmod specific. Under normal operation it should be set to: 1 None -- No diagnostics 2 DB3 -- Controls the insertion of eight path BIP-8 errors per frame continuously in the B3 byte. When DB3 is on, the B3 byte is inverted.
sonetPathEntry	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1		not-accessible	A table entry containing SONET Path statistics and errors information for every port.
C32 sonetPathFEBEs	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.5	Counter32	read-only	The number of path Far End Block Errors (FEBE) that have been detected since the last time the port has been reset. FEBEs are detected by extracting the 4-bit FEBE field from the path status byte (G1). The legal range for the 4 bit field is between 0000 and 1000, representing zero to eight errors. Any other value is interpreted as zero errors.
C32 sonetPathLOPs	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.6	Counter32	read-only	The number of seconds in which path Loss Of Pointer (LOP) has occurred. A path LOP is detected when a 'normal pointer value' is not found in eight consecutive frames. The LOP is cleared when a 'normal pointer value' is detected for three consecutive frames.
I32 sonetPathModule	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.2	Integer32	read-only	The network module of this port.
C32 sonetPathPLMs	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.10	Counter32	read-only	The number of seconds in which a path PLM defect has occrred. A path PLM defect is detected when the STS Signal lable (C2 bytes) != 0x00, 0x01, 0x13, 0xFC or 0xFF.
I32 sonetPathPointerDiagnostic	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.29	Integer32	read-write	This variable controls the insertion of various types of path pointer diagnostic bit patterns in the transmit stream. It is a bit map that is netmod specific. Under normal operation it should be set to: 1 None -- No diagnostics 2 FTPTR -- Controls the insertion of the pointer value contained in the Arbitrary Pointer Registers into the stream. This allows upstream payload mapping circuitry to continue functioning normally and a valid SPE to continue to be generated, although it is unlikely to be extraced by downstream circuitry which should be in a loss of pointer state. If FTPTR is on, the APTR[9:0] bits of the Arbitrary Pointer Registers are inserted into the H1 and H2 bytes of the stream. At least one corrupted pointer is guaranteed to be sent.
I32 sonetPathPort	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.3	Integer32	read-only	The number of this port.
INT sonetPathRdi	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.21	INTEGER	read-write	This variable controls the insertion of Path Remote Defect Indication (RDI_P). When set to sonetPathRdiAuto, RDI_P is automatically inserted into the transmit SONET stream whenever Loss Of Signal (LOS), Loss of Frame (LOF), Line AIS (AIS_L), Loss of Pointer (LOP), Path AIS (AIS_P), or Loss of Cell delineation (LCD) is detected. When set to sonetPathRdiOn, RDI_P is always inserted into the transmit SONET stream. Path RDI is inserted by setting RDI_P bit position in the path status byte (G1) high.
C32 sonetPathRDIs	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.8	Counter32	read-only	The number of seconds in which path RDI alarm has occurred. A path RDI alarm is detected by extracting bit 5 of the path status byte. If bit 5 is high for ten consecutive frames, a RDI alarm is declared. A RDI alarm is cleared when bit 5 is low for ten consecutive frames. RDI signals are used to alert upstream terminals of a downstream failure in order to initiate trunk conditioning on the failure circuit.
INT sonetPathStatus	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.15	INTEGER	read-only	This variable indicates the Path Status of the interface. It is defined in the SONET IETF draft path configuration table as sonetPathStatus. The variable is a bit map represented as a sum, therefore, it can represent multiple defects simultaneously. The sonetPathNoDefect should be set if and only if no other flag is set. The various bit positions are: 1 sonetPathNoDefect 2 sonetPathLOP Path Loss Of Pointer was detected. Path LOP is declared when a 'normal pointer value' is not found for eight consecutive frames. 4 sonetPathAIS Path Alarm Indication Signal was detected. Path AIS is asserted when an all ones pattern is detected in the pointer bytes (H1 and H2) for three consecutive frames. 8 sonetPathRDI Path RDI alarm has been detected. RDI alarm is declared when bit 5 of the path status byte is high for ten consecutive frames. 16 sonetPathUnequiped Path is not provisioned (idle). 32 sonetPathSignalLabelMismatch A received Path Signal Label mismatch. A received Signal Label is considered mismatched if it does not equal either the locally provisioned value or the value 'equipped non-specific' (1 hex).
sonetPathTable	1.3.6.1.4.1.326.2.2.1.1.4.2.3		not-accessible	A table of SONET Path statistics and errors information.
C32 sonetPathUNEQs	1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.9	Counter32	read-only	The number of seconds in which a path UNEQ defect has occurred. A path UNEQ defect is detected when the STS Signal label (C2 byte) == 0x00
INT sonetPathWidth	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.8	INTEGER	read-only	This variable indicates the type of the SONET Path. Assigned types are the STS-Nc Synchronous Payload Envelopes where N=1,3,9,12,24,48. STS-1 is equal to 51.84Mbps, STS-3c is 155.52 Mbps, etc. The SDH transmission rates STM-1 (155.52 Mbps), STM-4 (622.08 Mbps) and STM-16 (2488.32 Mbps) are equivalent to SONET rates STS-3, STS-12 and STS-48, respectively. This variable is defined in the SONET IETF draft path configuration table as sonetPathWidth.
I32 sonetRxPathSignalLabel	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.23	Integer32	read-only	This variable contains the path signal label byte (C2). The value in this variable is updated to a new path signal label value if the same new value is observed for two consecutive frames.
INT sonetRxScrambling	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.11	INTEGER	read-write	This variable indicates whether the information is being descrambled on receiving. It should be set the same as the transmitting side.
C32 sonetSectionBIPsEx	1.3.6.1.4.1.326.2.2.1.1.4.2.1.1.4	Counter32	read-only	The number of Section BIP-8 (Bit Interleaved Parity) errors that have been detected since the last time the port has been reset. The calculated BIP-8 code is compared with the BIP-8 code extracted from the B1 byte of the following frame. Differences indicate that a section level bit error has occurred.
I32 sonetSectionBoard	1.3.6.1.4.1.326.2.2.1.1.4.2.1.1.1	Integer32	read-only	The index of this port's switch board.
I32 sonetSectionDiagnostic	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.26	Integer32	read-write	This variable controls the insertion of various types of section diagnostic bit patterns in the transmit stream. It is a bit map that is netmod specific. Under normal operation it should be set to: 1 None -- No diagnostics 2 DFP -- Controls the insertion of single bit errors continuously in the most significant bit (bit 1) of the A1 section overhead framing byte. When DFP is on the A1 bytes are set to 0x76 instaed of 0xF6 4 DBIP8 -- Controls the insertion of bit errors continuously in the section BIP-8 byte (B1). When DBIB8 is on the B1 byte is inverted. 8 DLOS -- Controls the insertion of all zeros in the stream. When DLOST is on the transmit stream is forced to 0x00.
sonetSectionEntry	1.3.6.1.4.1.326.2.2.1.1.4.2.1.1		not-accessible	A table entry containing SONET Section statistics and errors information for every port.
C32 sonetSectionLOFs	1.3.6.1.4.1.326.2.2.1.1.4.2.1.1.6	Counter32	read-only	The number of seconds in which Loss Of Frame (LOF) has occurred. A LOF is declared when an out-of-frame (OOF) condition persists for 3ms. The LOF is cleared when an in-frame condition persists for 3ms. While in-frame the framing bytes (A1, A2) in each frame are compared against the expected pattern. Out-of-frame is declared when four consecutive frames containing one or more framing pattern errors have been received.
C32 sonetSectionLOSs	1.3.6.1.4.1.326.2.2.1.1.4.2.1.1.5	Counter32	read-only	The number of seconds in which Loss Of Signal (LOS) has occurred. A LOS is declared when 20 +/- 3us of all zeros patterns is detected. LOS is cleared when two valid framing words are detected and during the intervening time no LOS condition is detected.
I32 sonetSectionModule	1.3.6.1.4.1.326.2.2.1.1.4.2.1.1.2	Integer32	read-only	The network module of this port.
I32 sonetSectionPort	1.3.6.1.4.1.326.2.2.1.1.4.2.1.1.3	Integer32	read-only	The number of this port.
INT sonetSectionStatus	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.13	INTEGER	read-only	This variable indicates the Section Status of the interface. It is defined in the SONET IETF draft section configuration table as sonetSectionStatus. The variable is a bit map represented as a sum, therefore, it can represent multiple defects simultaneously. The sonetSectionNoDefect should be set if and only if no other flag is set. The various bit positions are: 1 sonetSectionNoDefect 2 sonetSectionLOS Loss Of Signal was detected. LOS is declared when 20 +/- 3us of all zero patterns is detected. 4 sonetSectionLOF Loss Of Frame was detected. LOF is declared when an out-of-frame condition persists for 3ms.
sonetSectionTable	1.3.6.1.4.1.326.2.2.1.1.4.2.1		not-accessible	A table of SONET Section statistics and errors information.
sonetStatsGroup	1.3.6.1.4.1.326.2.2.1.1.4.2
INT sonetTxClockSource	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.10	INTEGER	read-write	The source of the transmit clock.
I32 sonetTxPathSignalLabel	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.24	Integer32	read-write	This variable controls the transmit path signal label. The default value for ATM is 0x13 (19 decimal).
INT sonetTxScrambling	1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.12	INTEGER	read-write	This variable indicates whether the information (48 octet payload) is being scrambled before transmitting. It should be set the same as the receiving side.

RFC description

Fore Systems SONET MIB for managing SONET/SDH port module configuration and statistics.

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