Nick, Here is what I found documented in our Knowledgebase on Temp. I know we don't have a specific OID that you can poll to return back the current temp. Regards,
Doug Hyde Escalation Support Engineer Enterasys Networks Phone: 1-978-684-1048 E-mail: [email protected]<mailto:[email protected]> 50 Minuteman Rd. Andover, MA 01810 "There is nothing more important than our customers" Title: About the SecureStack B/C & G-Series f/w x.02 Overtemp Threshold feature Article ID: 11747 ________________________________ Products SecureStack C3, firmware 1.02.01.0004 and higher SecureStack C2, firmware 5.02.01.0006 and higher SecureStack B3, firmware 1.02.01.0004 and higher SecureStack B2, firmware 4.02.01.0006 and higher G-Series, firmware 1.02.00.0043 and higher Changes Configured the "Temp alarm max threshold" ('set system temperature...') to a lower value. Loss of Air Conditioning (AC) in network closet, creating over-temp/over-thermal condition. Symptoms Unit has a blinking red CPU LED. Unit sent a Temp Alarm trap. Unit sent a Temp Alarm syslog item. Unit is otherwise functional, passing traffic, with full management access. Cause The (standard) LED, (optional) trap, and (optional) syslog symptoms are occurring because, as visible in the output of a 'show system' command, the "Thermal Threshold" value has reached or exceeded the "Temp alarm max threshold" value. These are elements of a new feature announced in release notes; which state, in the 'Firmware Changes and Enhancements' section: Added support for protecting the health of the switch based on predetermined safe operating temperature limits. The administrator can change the maximum thermal threshold where a trap and syslog message is generated warning them of high-temperature conditions before service is affected. The controlling command set uses the format: set system temperature {[syslog enable | disable] [trap enable | disable] [overtemp-threshold <value 0-100>]} The default condition, visible in the output of a 'show config all system' command, is: set system temperature syslog disable trap disable overtemp-threshold 100 The readout for this functionality, slightly different for the SecureStacks and G-Series, is located in the output of a 'show system' command: C2(su)->show system . . . Temp-Alarm ----------- off <-- Supported, Not overtemp [off | on | NA] Thermal Threshold: 58% <-- What the measurement is now Temp alarm max threshold: 100% <-- Per 'overtemp-threshold' Temp alarm trap: disabled <-- Per 'trap disable' Temp alarm syslog: disabled <-- Per 'syslog disable' . . . C2(su)-> The B2G124-24, C2G124-24, C2G134-24P, and C2G170-24 have no onboard temperature sensor, and thus do not support the feature discussed in this document. A designation of "NA" indicates this non-support. G3(su)->show system . . . Temp-Alarm ----------- off <-- Not overtemp [off | on] Temp alarm max threshold: 100% <-- Per 'overtemp-threshold' Temp alarm trap: disabled <-- Per 'trap disable' Temp alarm syslog: disabled <-- Per 'syslog disable' Thermal Sensor Thermal Threshold -------------- ----------------- Fixed Slot 68% <-- What the measurement is now Power Supply 2 62% <-- What the measurement is now . . . G3(su)-> Notes: * The "Thermal Threshold" value is not an actual temperature reading, but a percentage of the maximum thermal capacity of the switch. * The "Temp alarm max threshold" value is the high-water mark that, when reached, triggers the set of user alerts described above. * When a high temperature alert condition occurs, the CPU LED on the front panel of the switch will flash red. In addition, if enabled, a syslog message will be logged and/or an SNMP trap will be sent. This occurs on an over-temp condition regardless of whether the user has chosen to configure the system temperature parameters. However, an over-temp condition is more likely when the user has reduced the "Temp alarm max threshold" from its default value. Title: Converting SecureStack B/C & G-Series Overtemp Threshold Percentages to Temperature Readings Article ID: 11520 ________________________________ Products SecureStack C3, firmware 1.02.01.0004 and higher SecureStack C2, firmware 5.02.01.0006 and higher SecureStack B3, firmware 1.02.01.0004 and higher SecureStack B2, firmware 4.02.01.0006 and higher G-Series, firmware 1.02.00.0043 and higher Goals Convert a thermal threshold percentage (11747<https://knowledgebase-enterasys.talismaonline.com/articleRedirect.aspx?aid=11747|>) to an equivalent temperature reading. Solution The thermal percentages actually indicate how close the sensor readings are to the maximum rating for the entire switch, and are not convertible to ambient temperature. Because some thermal sensors are located near components that can run hot, an absolute temperature reading could result in a temperature beyond the ambient temperature limits that are published in the Installation Guides<http://www.enterasys.com/support/manuals/>. Approximating ambient temperature is not practical because factors other than the environment (such as task loading, air flow, etc.) play a part in the sensor reading. The general recommendation is to set a thermal threshold in the 65%-75% range. If the alarm is triggered, check the fans and the physical location (for air-flow obstructions or the wiring closet ambient temperature) to identify and remedy the cause of the alert. Setting the threshold too low could result in unnecessary false alarms. From: Nick Allen [mailto:[email protected]] Sent: Wednesday, August 18, 2010 5:33 PM To: Enterasys Customer Mailing List Subject: Re: [enterasys] Temperature OID... Nope - no-one replied - I think ATG Tools or similar is the only solution for now which is a fair bit more work. Weird though - I'd have thought it's essential functionality to have this as a queryable OID. The temperature monitoring hardware is obviously there so it does strike me as a glaring omission and I can't think of a good reason why it wouldn't be there? Anyone from Enterasys got a view? N. On 18/08/2010 10:51, "Andy Middlehurst" <[email protected]> wrote: Hi Nick, Did your query get an answer? I searched my archive but couldn't find one, and I have the same question! Regards, Andy From: Nick Allen [mailto:[email protected]] Sent: 14 May 2010 12:53 To: Enterasys Customer Mailing List Subject: [enterasys] Temperature OID... I know the C series switches gained fan status and power supply status monitoring in recent(ish) firmware: Power Supply & Fan Monitoring via SNMP enables visibility to potential hardware issues that could affect network availability. The early view enables administrators to proactively address hardware issues and ensure business continuity. Is there any way other than traps or the CLI to monitor temperature? Think it's been asked before and someone mentioned it was being considered. Thanks, N. This e-mail is intended only for the named person or entity to which it is addressed and contains valuable business information that is proprietary, privileged, confidential and/or otherwise protected from disclosure. If you received this e-mail in error, any review, use, dissemination, distribution or copying of this e-mail is strictly prohibited. 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