A3COM-HUAWEI-PPP-OVER-SONET-MIB

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Organization: Hangzhou H3C Tech. Co., Ltd.

Last Updated: 2010-05-19

Category: Network Interfaces, Vendor: H3C/HH3C

Description: Manages PPP over SONET/SDH (POS) interfaces on H3C/3Com routers, providing link configuration, encapsulation settings, and line protocol statistics.

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What Is A3COM-HUAWEI-PPP-OVER-SONET-MIB?

A3COM-HUAWEI-PPP-OVER-SONET-MIB is an H3C/3Com enterprise MIB for managing PPP-over-SONET/SDH (POS) WAN interfaces, providing operational configuration and alarm reporting for each POS port on a router. It exposes per-interface parameters like CRC mode, MTU, scrambling, clock source, and frame type (SONET vs. SDH), as well as SONET/SDH overhead byte fields (J0, J1, C2) used for path tracing and signal-label verification. Its monitoring purpose is WAN link health and fault status: administrators track these overhead flags and configuration parameters to detect line-protocol alarms, framing mismatches, or misconfigured clock sources that would break a POS circuit, making it central to fault/status monitoring of high-speed serial WAN links rather than general software health. It is a specialized physical-layer/link MIB likely used alongside standard SONET/SDH-related MIBs (e.g., DS3/SONET MIBs) for a complete picture, though it directly focuses on the H3C POS interface configuration table. It is deployed on H3C/3Com routers with SONET/SDH WAN interface cards in service-provider or enterprise WAN backbone links. Engineers can download the A3COM-HUAWEI-PPP-OVER-SONET-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-HUAWEI-PPP-OVER-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

H3C/3Com routers with SONET/SDH (POS) WAN interface cards

Monitoring Examples

An admin would poll the h3cPosParamTable (entries in h3cPosParamTableEntry) for a given POS interface to check h3cPosCRC, h3cPosMTU, and h3cPosScramble settings, ensuring both ends of a circuit are configured consistently. Comparing h3cPosClockSource against the expected line-timing source helps diagnose clock-slip related errors, while h3cPosSdhFlagJ0/h3cPosSonetFlagJ0 (path trace) mismatches would reveal the circuit is cross-connected to the wrong remote endpoint. A mismatched h3cPosFrameType between SONET and SDH framing on either end of the link is a common root cause of a POS interface failing to come up.

What Can Be Monitored

POS interface CRC and MTU configuration
scrambling and clock source settings
SONET/SDH path trace bytes (J0/J1)
signal label byte (C2)
SONET vs SDH frame type

Imported Objects

From A3COM-HUAWEI-OID-MIB

h3cCommon

OBJECT-IDENTITY

From RFC1213-MIB

ifDescr
ifIndex

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

DisplayString
TruthValue

How to Use in IPNetwork Monitor

Example using h3cPosB1Error OID:

Select an H3C/3Com SONET/SDH router 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 h3cPosB1Error 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. It reports the counter for SBIPE(Section Bit Interleave Parity Error). 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 Counter64-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
h3cPos	1.3.6.1.4.1.43.45.1.10.2.19			This MIB manages POS(PPP Over Sonet)interfaces by providing an operational table which controls parameters of each POS interface and reports alarm conditions.
h3cPosMIBObjects	1.3.6.1.4.1.43.45.1.10.2.19.1
h3cPosParamTable	1.3.6.1.4.1.43.45.1.10.2.19.1.1		not-accessible	The pos parameter table.
h3cPosParamTableEntry	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1		not-accessible
INT h3cPosCRC	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.1	INTEGER	read-write	The length of CRC
INT h3cPosMTU	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.2	INTEGER	read-write	Maximum Transfer Unit (MTU) of POS interface
T/F h3cPosScramble	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.3	TruthValue	read-write	Scrambling is used to avoid continuous 0 or 1 in signals. This object is to decide whether to scramble or not
INT h3cPosClockSource	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.4	INTEGER	read-write	The value indicates the source of clock signal. System indicates that clock signals are from device itself and line for clock signals from remote
STR h3cPosSdhFlagJ0	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.5	DisplayString	read-write	The section trace byte. This node is used when the frame type is sdh.
STR h3cPosSdhFlagJ1	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.6	DisplayString	read-write	The path trace byte. This node is used when the frame type is sdh.
INT h3cPosSonetFlagJ0	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.7	INTEGER	read-write	The section trace byte. This node is used when the frame type is sonet.
STR h3cPosSonetFlagJ1	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.8	DisplayString	read-write	The path trace byte. This node is used when the frame type is sonet.
INT h3cPosFlagC2	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.9	INTEGER	read-write	The parameter for the channel signal value of C2 byte
INT h3cPosFrameType	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.10	INTEGER	read-write	The frame type that encapsulates the packet. Default frame type is sdh(Synchronous Digital Hierarchy) It also can be configured using sonet type(Synchronous Optical Network).
INT h3cPosBindVlanId	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.11	INTEGER	read-write	The vlan that this pos port binds. The vlan can not include any other port, otherwise error will be returned. If the vlan has a virtual interface, the status of virtual interface will be up or down according to the link status or this pos.
INT h3cPosEncapsulation	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.12	INTEGER	read-write	The type of encapsulation
INT h3cPoskeepaliveTimeout	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.13	INTEGER	read-write	The keeplive of hdlc. It is the query interval of link status. Two members of a link should have same keeplive. The default 0 prohibits detecting status of link.
INT h3cPosBERthresholdSF	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.14	INTEGER	read-write	The bit-error rate threshold for Signal Fault. SF threshold should be greater than SD threshold.
INT h3cPosBERthresholdSD	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.15	INTEGER	read-write	The bit-error rate threshold for Signal Degrade. SD threshold should be less than SF threshold.
C64 h3cPosB1ErrorEx	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.16	Counter64	read-only	Counter for SBIPE(Section Bit Interleave Parity Error)
C64 h3cPosB2Error	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.17	Counter64	read-only	Counter for LBIPE(Line Bit Interleave Parity Error)
C64 h3cPosB3Error	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.18	Counter64	read-only	Counter for PBIPE(Path Bit Interleave Parity Error)
C64 h3cPosM1Error	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.19	Counter64	read-only	How many times does LREI(Line Remote Error Indication) occur
C64 h3cPosG1Error	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.20	Counter64	read-only	How many times does PREI(Path Remote Error Indication) occur
INT h3cPosFlagJ0Type	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.21	INTEGER	read-write	The frame type that encapsulates the flag J0. Default frame type is sdh(Synchronous Digital Hierarchy). It also can be configured using sonet(Synchronous Optical Network) type.
INT h3cPosFlagJ1Type	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.22	INTEGER	read-write	The frame type that encapsulates the flag J1. Default frame type is sdh(Synchronous Digital Hierarchy). It also can be configured using sonet(Synchronous Optical Network) type.
INT h3cPosB1TCAThreshold	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.23	INTEGER	read-write	Threshold for B1 TCA.
INT h3cPosB2TCAThreshold	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.24	INTEGER	read-write	Threshold for B2 TCA.
INT h3cPosB3TCAThreshold	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.25	INTEGER	read-write	Threshold for B3 TCA.
INT h3cPosB1TCAEnable	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.26	INTEGER	read-write	Enable traps of B1 TCA.
INT h3cPosB2TCAEnable	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.27	INTEGER	read-write	Enable traps of B2 TCA.
INT h3cPosB3TCAEnable	1.3.6.1.4.1.43.45.1.10.2.19.1.1.1.28	INTEGER	read-write	Enable traps of B3 TCA.
h3cPosMIBNotificationsPrefix	1.3.6.1.4.1.43.45.1.10.2.19.2
h3cPosMIBNotifications	1.3.6.1.4.1.43.45.1.10.2.19.2.0
NTF h3cPosLOSAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.1			Alarm indicates loss of signal
NTF h3cPosLOFAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.2			Alarm indicates loss of frame
NTF h3cPosOOFAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.3			Alarm indicates out of frame
NTF h3cPosLAISAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.4			Alarm when LAIS(Line Alarm Indication Signal) arrives
NTF h3cPosLRDIAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.5			Alarm when LRDI(Line Remote Defect Indication) arrives
NTF h3cPosPRDIAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.6			Alarm when PRDI(Path Remote Defect Indication) arrives
NTF h3cPosPAISAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.7			Alarm when PAIS(Path Alarm Indication Signal) arrives
NTF h3cPosLOPAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.8			Alarm indicates loss of pointer
NTF h3cPosSTIMAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.9			Alarm indicates inconsistency between sent and received J0 bytes.
NTF h3cPosPTIMAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.10			Alarm indicates inconsistency between sent and received J1 bytes.
NTF h3cPosPSLMAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.11			Alarm indicates a mismatched C2 byte.
NTF h3cPosLSDAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.12			Alarm indicates that the B2 bit-error rate exceeds SD threshold.
NTF h3cPosLSFAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.13			Alarm indicates that the B2 bit-error rate exceeds SF threshold.
NTF h3cPosNormalAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.14			Alarm indicates that the Pos interface state returns normal.
NTF h3cPosB1TCAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.15			Threshold crossing alarms for B1.
NTF h3cPosB2TCAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.16			Threshold crossing alarms for B2.
NTF h3cPosB3TCAlarm	1.3.6.1.4.1.43.45.1.10.2.19.2.0.17			Threshold crossing alarms for B3.

RFC description

H3C PPP over SONET (POS) interface management MIB with parameter configuration, alarm reporting, and threshold crossing alarms.

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Download A3COM-HUAWEI-PPP-OVER-SONET-MIB