AT-FIBER-MONITORING-MIB

All MIBs › AT-FIBER-MONITORING-MIB

Organization: Allied Telesis, Inc

Last Updated: 2020-06-16

Category: Hardware and Environment, Network Interfaces, Optical and WDM, Vendor: Allied Telesis

Description: Monitors fiber optic transceiver signal levels, Tx/Rx power, and DOM thresholds on Allied Telesis SFP/SFP+ 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 AT-FIBER-MONITORING-MIB?

AT-FIBER-MONITORING-MIB is an Allied Telesis enterprise MIB that provides Digital Optical Monitoring (DOM) data for fiber optic SFP/SFP+ transceivers installed in Allied Telesis switches. It exposes per-transceiver optical signal metrics and threshold configuration -- transmit and receive power levels and associated alarm/warning thresholds -- along with notifications for out-of-range conditions. It is used explicitly to monitor the hardware health of fiber-optic transceivers, tracking Tx/Rx optical power levels against vendor-defined thresholds to provide early warning of a degrading or failing fiber link before it causes an outage. As a transceiver-monitoring MIB it complements the standard IF-MIB/ENTITY-MIB for interface and physical-entity inventory on the same switch. It is typically deployed on Allied Telesis managed switches with SFP/SFP+ fiber uplinks in enterprise and campus network environments, making AT-FIBER-MONITORING-MIB SNMP monitoring a standard safeguard against silent fiber-link degradation.

IPNetwork Monitor allows you to monitor SNMP objects defined in AT-FIBER-MONITORING-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

Allied Telesis managed switches with SFP/SFP+ fiber ports

Monitoring Examples

No object or table names were included in the sample for this module, so specific identifiers can't be cited; based on the module description, an operator would typically poll per-port Tx/Rx optical power objects and compare them against configured DOM thresholds to detect a degrading fiber link, such as falling Rx power indicating a dirty connector or failing transceiver, before it causes a link outage.

Imported Objects

From AT-SYSINFO-MIB

sysinfo

MODULE-IDENTITY

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
atFiberMon	1.3.6.1.4.1.207.8.4.4.3.27			This MIB contains managed objects definition and notification definitions for AT Fiber Monitoring feature.
atFiberMonNotifications	1.3.6.1.4.1.207.8.4.4.3.27.0
NTF atFiberMonAlarmSetNotify	1.3.6.1.4.1.207.8.4.4.3.27.0.1			A notification generated when the monitored received optical power of an SFP goes outside its alarm threshold.
NTF atFiberMonAlarmClearedNotify	1.3.6.1.4.1.207.8.4.4.3.27.0.2			A notification generated when the monitored received optical power of an SFP returns to an acceptable value. This can occur because the power has returned to its previous level or the comparison baseline has adjusted to the new level.
atFiberMonTrapVariable	1.3.6.1.4.1.207.8.4.4.3.27.1
I32 atFiberMonReading	1.3.6.1.4.1.207.8.4.4.3.27.1.1	Integer32	accessible-for-notify	The current received optical power reading for the port specified in the trap (x0.0001mW)
atFiberMonConfigTable	1.3.6.1.4.1.207.8.4.4.3.27.2		not-accessible	It contains the objects used to configure the operation of fiber monitoring.
atFiberMonConfigEntry	1.3.6.1.4.1.207.8.4.4.3.27.2.1		not-accessible	Entry for the table. It contains the configurables of fiber monitering for an interface.
OCT atFiberMonIfname	1.3.6.1.4.1.207.8.4.4.3.27.2.1.1	OCTET STRING	read-write	The name of the interface where the pluggable is in.
INT atFiberMonEnable	1.3.6.1.4.1.207.8.4.4.3.27.2.1.2	INTEGER	read-write	Enable or disable fiber monitoring.
I32 atFiberMonInterval	1.3.6.1.4.1.207.8.4.4.3.27.2.1.3	Integer32	read-write	Fiber monitoring polling interval in seconds.
OCT atFiberMonSensitivity	1.3.6.1.4.1.207.8.4.4.3.27.2.1.4	OCTET STRING	read-write	The sensitivity for fiber monitoring. Acceptable mode strings and value ranges are as below: low - 2dB medium - 1dB high - 0.5dB highest - 0.0025mW fixed - units of 0.0001mW relative - units of dB For example, if you want to set the sensitivity to medium level, then you enter word medium Or if you want to set it to a fixed value, then you enter string fixed 1000 Or if you want to set to a relative value, then you enter string relative 1.20
OCT atFiberMonBaseline	1.3.6.1.4.1.207.8.4.4.3.27.2.1.5	OCTET STRING	read-write	The baseline value for firber mornitoring. Acceptable mode string and value ranges are as below: average - number of readings used to calculate moving average. fixed - fixed baseline value in units of 0.0001mW. For example, if you want to use a moving average of 12 readings as the baseline, you enter average 12 Or if you want to use a fixed value, though it is not recommended, you enter fixed 500
INT atFiberMonAlarmAction	1.3.6.1.4.1.207.8.4.4.3.27.2.1.6	INTEGER	read-write	Actions to take when an alarm occurs. Acceptable values are: 1. Log a message only. 2. Send snmp trap and log. 3. Shut down the interface and log. 4. Send trap, shutdown and log.
atFiberMonStateTable	1.3.6.1.4.1.207.8.4.4.3.27.3		not-accessible	This table contains the information of fiber monitoring state for SFPs.
atFiberMonStateEntry	1.3.6.1.4.1.207.8.4.4.3.27.3.1		not-accessible	Entry for fiber monitoring state table. It contains state values for a fiber channel.
I32 atFiberMonIfindex	1.3.6.1.4.1.207.8.4.4.3.27.3.1.1	Integer32	read-only	The index of the interface where the pluggable is in.
INT atFiberMonChannel	1.3.6.1.4.1.207.8.4.4.3.27.3.1.2	INTEGER	read-only	The channel number of the pluggable.
STR atFiberMonlIfDescription	1.3.6.1.4.1.207.8.4.4.3.27.3.1.3	DisplayString	read-only	Interface description. Normally it would be the name of the interface.
I32 atFiberMonActualBaseline	1.3.6.1.4.1.207.8.4.4.3.27.3.1.4	Integer32	read-only	The calculated baseline value for the link, in units of 0.0001mW.
I32 atFiberMonThreshold	1.3.6.1.4.1.207.8.4.4.3.27.3.1.5	Integer32	read-only	Threshold value for alarm to occur, in units of 0.0001mW.
STR atFiberMonReadingHistory	1.3.6.1.4.1.207.8.4.4.3.27.3.1.6	DisplayString	read-only	The reading history. It is a string containing last 12 readings.
I32 atFiberMonMinReading	1.3.6.1.4.1.207.8.4.4.3.27.3.1.7	Integer32	read-only	The minimum reading of rx power, in units of 0.0001mW.
I32 atFiberMonMaxReading	1.3.6.1.4.1.207.8.4.4.3.27.3.1.8	Integer32	read-only	The maximum reading of rx power, in units of 0.0001mW.
I32 atFiberMonLastReading	1.3.6.1.4.1.207.8.4.4.3.27.3.1.9	Integer32	read-only	The most recent reading of rx power, in units of 0.0001mW. -1 is returned if no readings have been taken yet.

RFC description

Allied Telesis fiber optics monitoring for SFP ports with optical power threshold alarms.

Start monitoring Allied Telesis managed switches and routers 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 AT-FIBER-MONITORING-MIB

What Is AT-FIBER-MONITORING-MIB?

Supported Devices

Monitoring Examples

This MIB depends on

Related MIBs

RFC description