Temperature and Power Monitoring for SFP DOMs

Table of Contents

Te mperature and Power Monitoring for SFP DOMs

Information About Temperature and Power Monitoring

Prerequisites

Guidelines and Limitations

Configuration

Modifying the Power and Temperature Monitoring Interval for SFP DOMs

SNMP MIB OID Updates Automatically

Feature History

Temperature and Power Monitoring for
SFP DOMs

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First Published: December 23, 2014

 

You can configure how often you monitor the temperature and power of SFP digital optical monitoring (DOM) modules (SFP DOMs) within CGS 2520 switches (switch).

Previously, this monitoring interval was not a user-configurable setting. You could only monitor the temperature and power settings of an SFP with DOM support every 600 seconds (10 minutes).

This document includes the following sections:

• Information About Temperature and Power Monitoring
• Prerequisites
• Guidelines and Limitations
• Configuration
• Feature History

Information About Temperature and Power Monitoring

You can configure the switch to request MIB reading intervals of the temperature and power of SFPs with DOM support every 30 to 599 seconds.

SFPs, which are also referred to as transceivers, come with either LC connectors (fiber) or RJ-45 (copper) and provide connection to devices over uplink interfaces.

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Note Copper SFPs are not supported in the initial release. (See Feature History)

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Prerequisites

Review supported SFP DOM modules described in the following hardware installation guide:

Cisco CGS 2520 Hardware Installation Guide

Guidelines and Limitations

If you do not modify the monitoring interval of temperature and power for SFP DOM modules, the default monitoring interval remains at 600 seconds (10 minutes).

Configuration

You can define power and temperature monitoring intervals on the CGS 2520.

This section includes the following topics:

• Modifying the Power and Temperature Monitoring Interval for SFP DOMs
• SNMP MIB OID Updates Automatically

Modifying the Power and Temperature Monitoring Interval for SFP DOMs

BEFORE YOU BEGIN

Review the Prerequisites.

Review the Guidelines and Limitations.

DETAILED STEPS

 

	Command	Purpose
Step 1	configure terminal	Enters configuration mode.
Step 2	transceiver type {all}	Enters the transceiver (SFP DOMs) configuration mode.
Step 3	monitoring interval <value>	Defines how often you want to check the temperature and power values of the SFP DOMs on the switch in seconds. Value range: 30 to 599 seconds. Note The value you set applies to all SFP DOMs on the switch, current and future.

EXAMPLE

This example configures a monitoring interval of 300 seconds (5 minutes) on all SFP DOMs on the switch.

switch#: configure terminal

switch(config)# transceiver type all

switch(config-xcvr-type)# monitoring interval 300

To confirm the power and temperature interval configuration, enter the show run command:

switch(config-xcvr-type)# show run

 

!

transceiver type all

monitoring interval 300

!

!

SNMP MIB OID Updates Automatically

When you configure a temperature and power monitoring interval value for SFP DOMs using the
monitor interval <30-599> command, the entSensorValueUpdateRate OID value is automatically updated in the CISCO-ENTITY-SENSOR-MIB.my MIB.

entSensorValueUpdateRate <----Value updated automatically after you configure the value

entSensorUpdateRate

ciscoEntitySensorMIB.

entitySensorMIBObjects.

entSensorValues.

entSensorValueTable.

entSensorValueEntry.

entSensorValueUpdateRate

Feature History

 

Feature	Release	Feature Information
Temperature and Power Monitoring Interval for SFP DOMs	Cisco IOS Release 15.2(3)EA	Initial support of the feature on CGS 2520.

 

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