SL-ROADM-MIB

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Organization: Smartoptics AS

Last Updated: 2005-08-17

Description: MIB for Reconfigurable Optical Add/Drop Multiplexer (ROADM) modules on SmartOptics equipment, configuring WSS channel provisioning as express, add, or drop

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What Is SL-ROADM-MIB?

SL-ROADM-MIB manages Reconfigurable Optical Add/Drop Multiplexer (ROADM) modules on SmartOptics equipment, specifically configuring Wavelength Selective Switch (WSS) channels as express, add, or drop paths in a DWDM optical network. It belongs to the optical-transport/DWDM technology category and exposes per-line WSS configuration alongside operational status, temperature, uptime, and optical power/attenuation levels. Its monitoring emphasis is strongly hardware-focused: slWSSConfigSwitchTemp, slWSSConfigBoardTemp, and slWSSConfigCaseTemp track thermal health of the WSS module, slWSSConfigUptime reflects module stability, and slWSSConfigOperStatus reports whether a given WSS line is functioning, while slWSSConfigPowerLevel/slWSSConfigAttenLevel monitor optical signal power and attenuation critical to DWDM link quality. It depends on the shared SL-MAIN-MIB system context for the parent chassis and likely coordinates with SL-SONET-APS-MIB where ROADM lines carry SONET traffic. It is deployed in metro/regional DWDM networks using SmartOptics ROADM nodes for flexible wavelength routing. Network engineers evaluating or troubleshooting this functionality can download the SL-ROADM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in SL-ROADM-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

SmartOptics ROADM/WSS optical transport modules

Monitoring Examples

An operator would poll slWSSConfigOperStatus per slWSSConfigLineIndex in the slWSSConfigTable to confirm each WSS line (express, add, or drop) is operational, and check slWSSConfigSwitchTemp/slWSSConfigBoardTemp/slWSSConfigCaseTemp for early signs of thermal stress in the optical module. Monitoring slWSSConfigPowerLevel and slWSSConfigAttenLevel against expected DWDM channel budgets reveals when a wavelength's power is drifting out of spec, which could indicate a fiber or amplifier issue upstream. A rising board or case temperature combined with an operational status change would strongly suggest a failing ROADM card needing replacement.

What Can Be Monitored

WSS line operational status
switch/board/case temperature
module uptime
optical power level per channel
attenuation level per channel
configured channel count and first wavelength

Imported Objects

From IF-MIB

InterfaceIndex

From SL-NE-MIB

slService

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Gauge32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

DateAndTime
DisplayString
TruthValue

How to Use in IPNetwork Monitor

Example using slWSSConfigOperStatus OID:

Select a SmartOptics ROADM/WSS optical transport module (WSS channel/temperature/power status) 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 slWSSConfigOperStatus into the Find box to locate it in the OID tree, then select it and click OK. The WSS operational status. 0 - DOWN, 1 - UP. 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 an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the value is anything other than '1 (up)', since that indicates the condition this object reports has changed to one worth investigating. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
slROADM	1.3.6.1.4.1.4515.1.1.16			This MIB module describes the ROADM
slROADMConfig	1.3.6.1.4.1.4515.1.1.16.1
slWSSConfigTable	1.3.6.1.4.1.4515.1.1.16.1.1		not-accessible	The ROADM Configuration table.
slWSSConfigEntry	1.3.6.1.4.1.4515.1.1.16.1.1.1		not-accessible	An entry in the WSS Configuration table.
NUM slWSSConfigLineIndex	1.3.6.1.4.1.4515.1.1.16.1.1.1.1	InterfaceIndex	read-only	Only one entry in the table. Thus this is a dummy ifIndex that equals to 1.
INT slWSSConfigOperStatusEx	1.3.6.1.4.1.4515.1.1.16.1.1.1.2	INTEGER	read-only	The WSS operational status. 0 - DOWN, 1 - UP.
INT slWSSConfigSwitchTemp	1.3.6.1.4.1.4515.1.1.16.1.1.1.3	INTEGER	read-only	The switch temperature in 0.1 celsius
INT slWSSConfigBoardTemp	1.3.6.1.4.1.4515.1.1.16.1.1.1.4	INTEGER	read-only	The board temperature in 0.1 celsius
INT slWSSConfigCaseTemp	1.3.6.1.4.1.4515.1.1.16.1.1.1.5	INTEGER	read-only	The case temperature in 0.1 celsius
INT slWSSConfigUptime	1.3.6.1.4.1.4515.1.1.16.1.1.1.6	INTEGER	read-only	The case temperature in 0.1 celsius
INT slWSSConfigComFirstWl	1.3.6.1.4.1.4515.1.1.16.1.1.1.7	INTEGER	read-write	The channel number
INT slWSSConfigComChCount	1.3.6.1.4.1.4515.1.1.16.1.1.1.8	INTEGER	read-write	The overall count of channels in the Waveplan. The channels are ordered in increasing frequency (decreasing wavelength).
INT slWSSConfigPowerLevel	1.3.6.1.4.1.4515.1.1.16.1.1.1.9	INTEGER	read-only	The received Destination Access Point Identifier.
INT slWSSConfigAttenLevel	1.3.6.1.4.1.4515.1.1.16.1.1.1.10	INTEGER	read-only	The received Source Access Point Identifier.
INT slWSSConfigEqualizationThreshLevel	1.3.6.1.4.1.4515.1.1.16.1.1.1.11	INTEGER	read-write	The equalization threshold level. In manual mode if the TX power is below this threshold an alarm is declared against this channel. Legal values are -8dBm to -23dBm (default -13dBm).
INT slWSSConfigEqualizationMethod	1.3.6.1.4.1.4515.1.1.16.1.1.1.12	INTEGER	read-write	The equalization method: 1 - manual equlization to predefined value (default mode). 2 - automatic equlization
INT slWSSConfigSpacing	1.3.6.1.4.1.4515.1.1.16.1.1.1.13	INTEGER	read-only	The spacing supported by the ROADM.
slROCHConfigTable	1.3.6.1.4.1.4515.1.1.16.1.2		not-accessible	The ROADM Channel Configuration table.
slROCHConfigEntry	1.3.6.1.4.1.4515.1.1.16.1.2.1		not-accessible	An entry in the ROADM Configuration table.
NUM slROCHConfigLineIndex	1.3.6.1.4.1.4515.1.1.16.1.2.1.1	InterfaceIndex	read-only	The ifIndex of the channel. Channels 1-100 for the 100 GHz spacing cannels (e.g. 17 for CH17). Channels 101-200 for the 50 GHz spacing channels (e.g. 117 for CH 17.5).
ROC slROCHConfigProvisioning	1.3.6.1.4.1.4515.1.1.16.1.2.1.2	ROCHProvisioningType	read-write	The channel provisioning
INT slROCHConfigInPowerLevel	1.3.6.1.4.1.4515.1.1.16.1.2.1.3	INTEGER	read-only	The Power Level of the channel equal to Out Power Level + Attenuation
INT slROCHConfigOutPowerLevel	1.3.6.1.4.1.4515.1.1.16.1.2.1.4	INTEGER	read-only	The Output Power Level of the channel
INT slROCHConfigChannelDetect	1.3.6.1.4.1.4515.1.1.16.1.2.1.5	INTEGER	read-only	Channel detect indication. 0 - not detected, 1 - channel is detected
INT slROCHConfigChPowerFailHighThresh	1.3.6.1.4.1.4515.1.1.16.1.2.1.6	INTEGER	read-write	The threshold for channel High Power Failure. Setting this value applies to all channels.
INT slROCHConfigChPowerFailLowThresh	1.3.6.1.4.1.4515.1.1.16.1.2.1.7	INTEGER	read-write	The threshold for channel Low Power Failure. Setting this value applies to all channels.
INT slROCHConfigChPowerDegHighThresh	1.3.6.1.4.1.4515.1.1.16.1.2.1.8	INTEGER	read-write	The threshold for channel High Power Degrade. Setting this value applies to all channels.
INT slROCHConfigChPowerDegLowThresh	1.3.6.1.4.1.4515.1.1.16.1.2.1.9	INTEGER	read-write	The threshold for channel Low Power Degrade. Setting this value applies to all channels.
INT slROCHConfigChPowerHystHighThresh	1.3.6.1.4.1.4515.1.1.16.1.2.1.10	INTEGER	read-write	The threshold for channel High Power Hysteresis. Setting this value applies to all channels.
INT slROCHConfigChPowerHystLowThresh	1.3.6.1.4.1.4515.1.1.16.1.2.1.11	INTEGER	read-write	The threshold for channel Low Power Hysteresis. Setting this value applies to all channels.
STR slROCHConfigChAlias	1.3.6.1.4.1.4515.1.1.16.1.2.1.12	DisplayString	read-write	The alias for the channel. The dfault is the empty string
STR slROCHConfigChAliasSmm	1.3.6.1.4.1.4515.1.1.16.1.2.1.13	DisplayString	read-write	The alias for the channel as given by the SMM. The dfault is the empty string
INT slROCHConfigProvisioningNew	1.3.6.1.4.1.4515.1.1.16.1.2.1.14	INTEGER	read-write	The channel provisioning. A bitmask with each bit for the corresponding port. Bit n ON means that the channel is added/dropped from/to port number n+1.
slROADMPm	1.3.6.1.4.1.4515.1.1.16.2
slROADMTraps	1.3.6.1.4.1.4515.1.1.16.3

RFC description

Smartoptics private MIB for managing ROADM (Reconfigurable Optical Add/Drop Multiplexer) modules with wavelength switching and provisioning.

Start monitoring SmartOptics ROADM/WSS optical transport modules (WSS channel/temperature/power 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 SL-ROADM-MIB