ASCEND-MIBAPSSTAT-MIB

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Category: Optical and WDM, Vendor: Ascend/Lucent

Description: Monitors Automatic Protection Switching operational status and switch events on Ascend equipment.

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What Is ASCEND-MIBAPSSTAT-MIB?

ASCEND-MIBAPSSTAT-MIB is the operational-status counterpart to ASCEND-MIBAPSCFG-MIB, reporting the live state of Automatic Protection Switching on Ascend SONET/SDH interfaces. It exposes which line (working or protect) is currently active and records switch events with their cause. This is fundamentally a fault-monitoring MIB: it detects and explains automatic failovers of the optical line, serving as an availability indicator for the physical SONET transport path. It complements ASCEND-MIBAPSCFG-MIB's configuration data and aligns with standard SONET/SDH status conventions. It was deployed on the same legacy Ascend/Lucent optical transport equipment used in telco access networks. Engineers can download the ASCEND-MIBAPSSTAT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in ASCEND-MIBAPSSTAT-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

Ascend/Lucent SONET/SDH WAN access equipment

Monitoring Examples

No sample objects were captured for this module. Based on its stated purpose, it would expose a per-interface active-line indicator (working vs. protect) and a last-switch-event/reason object, which an operator monitors to detect that traffic failed over to the protect line, signaling a fault on the primary SONET line.

What Can Be Monitored

active working/protect line state
APS switch event history
switch-over reason/cause

Imported Objects

From ASCEND-MIB

configuration

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

IpAddress

OIDs

OID symbolic	OID numeric	Type	Access	Description
mibapsStat	1.3.6.1.4.1.529.23.149
mibapsStatTable	1.3.6.1.4.1.529.23.149.1		not-accessible	A list of mibapsStat profile entries.
mibapsStatEntry	1.3.6.1.4.1.529.23.149.1.1		not-accessible	A mibapsStat entry containing objects that maps to the parameters of mibapsStat profile.
STR apsStat_Name	1.3.6.1.4.1.529.23.149.1.1.1	DisplayString	read-only	Name of APS protection group (aps-config profile).
INT apsStat_ProtectionChannel_Shelf	1.3.6.1.4.1.529.23.149.1.1.2	INTEGER	read-write	The number of the shelf that the addressed physical device resides on.
INT apsStat_ProtectionChannel_Slot	1.3.6.1.4.1.529.23.149.1.1.3	INTEGER	read-write	The number of the slot that the addressed physical device resides on.
INT apsStat_ProtectionChannel_ItemNumber	1.3.6.1.4.1.529.23.149.1.1.4	INTEGER	read-write	A number that specifies an addressable entity within the context of shelf and slot.
INT apsStat_ProtectionMode	1.3.6.1.4.1.529.23.149.1.1.5	INTEGER	read-only	The linear APS protection mode (1+1, 1:n).
INT apsStat_DirectionMode	1.3.6.1.4.1.529.23.149.1.1.6	INTEGER	read-only	The protection group mode (direction) of operation.
INT apsStat_RevertiveMode	1.3.6.1.4.1.529.23.149.1.1.7	INTEGER	read-only	The protection group revertive mode of operation.
INT apsStat_ApsState	1.3.6.1.4.1.529.23.149.1.1.8	INTEGER	read-only	Current status of the protection switching.
INT apsStat_RecvPsbfCount	1.3.6.1.4.1.529.23.149.1.1.29	INTEGER	read-only	Count of PSBF events received.
INT apsStat_RecvModeMismatchCount	1.3.6.1.4.1.529.23.149.1.1.30	INTEGER	read-only	Count of mode-mismatch events received.
INT apsStat_RecvChannelMismatchCount	1.3.6.1.4.1.529.23.149.1.1.31	INTEGER	read-only	Count of channel-mismatch events received.
INT apsStat_RecvFeplCount	1.3.6.1.4.1.529.23.149.1.1.32	INTEGER	read-only	Count of FEPL events received.
INT apsStat_ExtraTrafficFlag	1.3.6.1.4.1.529.23.149.1.1.33	INTEGER	read-only	Indicates whether extra traffic is being carried on protection channel (1:n only).
STR apsStat_RxK1ByteValue	1.3.6.1.4.1.529.23.149.1.1.34	DisplayString	read-only	Current value of K1 byte received on protection channel
STR apsStat_RxK2ByteValue	1.3.6.1.4.1.529.23.149.1.1.35	DisplayString	read-only	Current value of K2 byte received on protection channel
STR apsStat_TxK1ByteValue	1.3.6.1.4.1.529.23.149.1.1.36	DisplayString	read-only	Last value of K1 byte transmitted on protection channel
STR apsStat_TxK2ByteValue	1.3.6.1.4.1.529.23.149.1.1.37	DisplayString	read-only	Last value of K2 byte transmitted on protection channel
INT apsStat_Action_o	1.3.6.1.4.1.529.23.149.1.1.42	INTEGER	read-write
INT apsStat_WorkingChannel_Shelf	1.3.6.1.4.1.529.23.149.1.1.43	INTEGER	read-write	The number of the shelf that the addressed physical device resides on.
INT apsStat_WorkingChannel_Slot	1.3.6.1.4.1.529.23.149.1.1.44	INTEGER	read-write	The number of the slot that the addressed physical device resides on.
INT apsStat_WorkingChannel_ItemNumber	1.3.6.1.4.1.529.23.149.1.1.45	INTEGER	read-write	A number that specifies an addressable entity within the context of shelf and slot.
INT apsStat_BridgeStatus	1.3.6.1.4.1.529.23.149.1.1.47	INTEGER	read-only	Status of the bridge. True if bridging is on (always on for 1+1).
INT apsStat_LastSwitchTime	1.3.6.1.4.1.529.23.149.1.1.48	INTEGER	read-only	Time of last switch.
INT apsStat_SwitchCount	1.3.6.1.4.1.529.23.149.1.1.49	INTEGER	read-only	Number of times switch over to protection channel occured.
INT apsStat_ApsCfgCreationTime	1.3.6.1.4.1.529.23.149.1.1.50	INTEGER	read-only	Time the protection group was created.
INT apsStat_NumberOfChannels	1.3.6.1.4.1.529.23.149.1.1.51	INTEGER	read-only	Number of channels in this protection group.
INT apsStat_PsbfFailure	1.3.6.1.4.1.529.23.149.1.1.52	INTEGER	read-only	PSBF state.
INT apsStat_ChannelMismatchFailure	1.3.6.1.4.1.529.23.149.1.1.53	INTEGER	read-only	Channel mismatch state.
INT apsStat_ModeMismatchFailure	1.3.6.1.4.1.529.23.149.1.1.54	INTEGER	read-only	Mode mismatch state.
INT apsStat_FeplFailure	1.3.6.1.4.1.529.23.149.1.1.55	INTEGER	read-only	FEPL state.

RFC description

APS protection channel statistics and switching information for Ascend systems.

Start monitoring Ascend/Lucent SONET/SDH WAN access equipment (legacy) 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 ASCEND-MIBAPSSTAT-MIB

What Is ASCEND-MIBAPSSTAT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description