ZHONE-PHY-SONET-MIB

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Organization: Zhone Technologies, Inc.

Last Updated: 2004-08-18

Category: DSL and Broadband Access

Description: Tracks SONET physical layer performance on Zhone Technologies equipment, covering section, line, and path monitoring data.

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What Is ZHONE-PHY-SONET-MIB?

The ZHONE-PHY-SONET-MIB is a Zhone Technologies enterprise MIB for configuring and monitoring the physical-layer attributes of SONET interfaces on Zhone access and transport equipment, covering the section, line, and path layers of the SONET stack. It exposes performance-monitoring counters and current/threshold alarm indicators for each SONET layer, such as error-second counts and defect/alarm states. This is squarely hardware-status monitoring: administrators use it to detect physical-layer degradation on fiber transport links, such as rising line-coding violations or loss-of-signal/loss-of-frame alarms, before they escalate into service outages. It parallels, and likely coexists with, the standard SONET/SDH Interface MIB (RFC 3592) that defines equivalent section/line/path performance objects. It is deployed on Zhone Technologies access and transport platforms, where the ZHONE-PHY-SONET-MIB MIB is used by carriers and service providers delivering SONET-based transport circuits.

IPNetwork Monitor allows you to monitor SNMP objects defined in ZHONE-PHY-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

Zhone Technologies SONET access/transport equipment

Monitoring Examples

An administrator would poll the section, line, and path performance-monitoring tables for a given SONET interface to track current 15-minute and 24-hour error-second counts, watching for a sudden increase that indicates fiber degradation or a failing optical transceiver. Alarm-state objects at each layer, such as loss-of-signal or loss-of-frame indicators, would be checked to pinpoint exactly which layer of the SONET stack is experiencing the fault.

What Can Be Monitored

SONET section/line/path performance counters
loss-of-signal/loss-of-frame alarm status
error-second counts
SONET physical layer configuration

Imported Objects

From IF-MIB

InterfaceIndex

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TruthValue

From SONET-MIB

sonetLineCurrentStatus	OBJECT-TYPE
sonetMediumEntry	OBJECT-TYPE
sonetPathCurrentStatus	OBJECT-TYPE
sonetSectionCurrentStatus	OBJECT-TYPE

From Zhone

zhoneModules	OBJECT-IDENTITY
zhoneSonet	OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
sonetClockTable	1.3.6.1.4.1.5504.5.9.1		not-accessible	MIB table for clock related configuration for SONET interfaces.
sonetClockEntry	1.3.6.1.4.1.5504.5.9.1.1		not-accessible	An entry of the sonetClockEntry. sonetClockEntry is augmented to sonetMediumEntry defined in rfc2558.mib. Whenever a row is instantiated in the sonetMediumTable, a corresponding row will be instantiated in the sonetClockTable.
INT sonetClockExternalRecovery	1.3.6.1.4.1.5504.5.9.1.1.1	INTEGER	read-write	This variable indicates if external clock recovery is enabled for this SONET interface. The default value is 'enabled'.
INT sonetClockTransmitSource	1.3.6.1.4.1.5504.5.9.1.1.2	INTEGER	read-write	This variable describes the SONET transmit clock source. Valid values are: loopTiming - transmit clock synthesized from the recovered receive clock. throughTiming - transmit clock is derived from the recovered receive clock of another SONET interface. localTiming - transmit clock synthesized from a local clock source or that an external clock is attached to the box containing the interface. external155MHz - transmit clock synthesized from an external 155.52 MHz source. The default value is 'loopTiming'. 'external155MHz' option is not valid for Sechtor 100.
sonetMediumExtTable	1.3.6.1.4.1.5504.5.9.2		not-accessible	This is an extenion of the standard Sonet MIB (RFC 2558).
sonetMediumExtEntry	1.3.6.1.4.1.5504.5.9.2.1		not-accessible	Each row is an extension to the sonetMediumTable for Zhone specific fields. This row is created when the augmented sonetMediumEntry is created.
T/F sonetMediumExtScrambleEnabled	1.3.6.1.4.1.5504.5.9.2.1.1	TruthValue	read-write	This field describes the enabled status of the Sonet Scramble mode. If this field is true(1) then Scramble mode is enabled, if this field is false(2) scramble mode is disable.
T/F sonetMediumExtLineScrmEnabled	1.3.6.1.4.1.5504.5.9.2.1.2	TruthValue	read-write	This field describes the enabled status of the Line level Sonet Scramble mode. If this field is true(1), then Scramble mode is enabled. If this field is false(2), scramble mode is disable.
sonetTraps	1.3.6.1.4.1.5504.5.9.3			All Zhone Sonet traps will be defined under this object identity.
sonetV2Traps	1.3.6.1.4.1.5504.5.9.3.0			This object identity adds a zero(0) for the next to last sub-identifier which should be used for new SNMPv2 Traps.
NTF sonetClockTransmitSourceChange	1.3.6.1.4.1.5504.5.9.3.0.1			A notification trap is sent when either sonetClockExternalRecovery or sonetClockTransmitSource is changed. The trap object is identified by the OID instance of sonetClockTransmitSource described in the OBJECTS clause.
NTF sonetSectionStatusChange	1.3.6.1.4.1.5504.5.9.3.0.2			A notification trap is sent when there is a change in the sonet SECTION status. Currenly the following are supported: NO-DEFECT = 1 LOS = 2 LOF = 4 The trap object is identified by the OID instance of sonetSectionCurrentStatus described in the OBJECTS clause.
NTF sonetLineStatusChange	1.3.6.1.4.1.5504.5.9.3.0.3			A notification trap is sent when there is a change in the sonet LINE status. Currenly the following are supported: NO-DEFECT = 1 AIS = 2 RDI = 4 The trap object is identified by the OID instance of sonetLineCurrentStatus described in the OBJECTS clause.
NTF sonetPathStatusChange	1.3.6.1.4.1.5504.5.9.3.0.4			A notification trap is sent when there is a change in the sonetPathCurrentStatus. Currenly the following are supported: 1 sonetPathNoDefect 2 sonetPathSTSLOP 4 sonetPathSTSAIS 8 sonetPathSTSRDI 16 sonetPathUnequipped 32 sonetPathSignalLabelMismatch The trap object is identified by the OID instance of sonetPathCurrentStatus described in the OBJECTS clause.
zhoneSonetErrorStatsTable	1.3.6.1.4.1.5504.5.9.6		not-accessible	Description.
zhoneSonetErrorStatsEntry	1.3.6.1.4.1.5504.5.9.6.1		not-accessible	Description.
NUM zhoneSonetErrorStatsIndex	1.3.6.1.4.1.5504.5.9.6.1.1	InterfaceIndex	not-accessible	Description.
I32 zhoneSonetErrorStatsLineFebeCount	1.3.6.1.4.1.5504.5.9.6.1.2	Integer32	read-only	Number of RLOP far-end block errors (FEBE).
I32 zhoneSonetErrorStatsPathFebeCount	1.3.6.1.4.1.5504.5.9.6.1.3	Integer32	read-only	Number of RPOP far-end block errors (FEBE).
I32 zhoneSonetErrorStatsLineBipCount	1.3.6.1.4.1.5504.5.9.6.1.4	Integer32	read-only	Number of Receive Line Overhead Processor (RLOP) BIP-8 errors. The RLOP is responsible for line-level alarms and for monitoring performance.
I32 zhoneSonetErrorStatsSectionBipCount	1.3.6.1.4.1.5504.5.9.6.1.5	Integer32	read-only	Number of Receive Section Overhead Processor (RSOP) bit-interleaved parity (BIP)-8 errors. The RSOP synchronizes and descrambles frames and provides section-level alarms and performance monitoring.
I32 zhoneSonetErrorStatsPathBipCount	1.3.6.1.4.1.5504.5.9.6.1.6	Integer32	read-only	Number of Receive Path Overhead Processor (RPOP) BIP-8 errors. The RSOP interprets pointers and extracts path overhead and the synchronous payload envelope. It is also responsible for path-level alarms and for monitoring performance.
I32 zhoneSonetErrorStatsOofCount	1.3.6.1.4.1.5504.5.9.6.1.7	Integer32	read-only	Near end is out of frame. False indicates that the line is up and in frame.
I32 zhoneSonetErrorStatsRxCellCount	1.3.6.1.4.1.5504.5.9.6.1.8	Integer32	read-only	Receive ATM Cell Processor (RACP) receive cell count.
I32 zhoneSonetErrorStatsTxCellCount	1.3.6.1.4.1.5504.5.9.6.1.9	Integer32	read-only	Transmit ATM Cell Processor (TACP) transmit cell count.
I32 zhoneSonetErrorStatsHecCorrectedCount	1.3.6.1.4.1.5504.5.9.6.1.10	Integer32	read-only	Number of corrected HEC cells.
I32 zhoneSonetErrorStatsHecUncorrectedCount	1.3.6.1.4.1.5504.5.9.6.1.11	Integer32	read-only	Number of uncorrected dropped HEC cells.
I32 zhoneSonetErrorStatsCellFifoOverflowCount	1.3.6.1.4.1.5504.5.9.6.1.12	Integer32	read-only	Number of cells dropped because of first in, first out (FIFO) overflow.
I32 zhoneSonetErrorStatsLocdCount	1.3.6.1.4.1.5504.5.9.6.1.13	Integer32	read-only	Loss of cell delineation.
phySonet	1.3.6.1.4.1.5504.6.16			SONET physical MIB to configure and monitor SONET physical attributes.

RFC description

Monitors Zhone Technologies SONET physical layer section, line, and path performance monitoring data.

Start monitoring Zhone Technologies SONET access/transport equipment (section/line/path error-second/alarm 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.

Download ZHONE-PHY-SONET-MIB

What Is ZHONE-PHY-SONET-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description