Also worth noting that graphing them with SNMP is also useful to
identify long-term trends.   I realized we had people putting stuff in a
rack next to us backwards (ie hot output into the cold isle) once that
way.



-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Pete Templin
Sent: Monday, March 03, 2008 11:33 AM
To: eliran h
Cc: [email protected]
Subject: Re: [c-nsp] temperature reading GSR

eliran h wrote:
> I've typed the command:
> show environment temperatures
> Slot #  Hot Sensor      Inlet Sensor
>          (deg C)          (deg C)
> 0       27.5            28.0
> 
> Cisco specify a temperature range for each line card, Do I need to
focus in
> the HOT sensor or the Inlet sensor?

Both.  High temps at the inlet indicate insufficient cold air.  High 
temps at the hot sensor indicate poor airflow - think airflow 
restrictions, failed fans, etc.

Consider using SNMP to track these.  You should then be able to pull the

warning and critical thresholds on a per-card basis to know when you're 
running hot.

pt
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