Posted on May 22, 2018 6:18 pm
 |  Asked by David Ron
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Hi All,
After reading the snmp paper published in the kb (, and browsing through the snmp mib tree for EOS, I have some questions regarding SNMP polling.

What is the most important parameter that needs to be sampled for temperature? Cpu temp, Cpu board temp, Back-panel, Front-panel, hotspot, inlet, ambient temp?

For each platform on the same switches series (7280), I see that the sensor number changes
i can query sensor id#14 which on one is cpu board temp with ., but on 7280QR-C36, the cpu board temp is on sensor #2.
I guess my question is – is there a constant sensor that doesnt change across platforms and is best practice for temperature measurement?

Posted by Alexis Dacquay
Answered on August 16, 2020 6:08 am

Hi David,

The Arista MIBs and standard MIBs can be found here:

You can use ENTITY-SENSOR-MIB as universal sensor MIB, it will be consistent across all networking vendors, so also for Arista multiple platforms.

ARISTA-ENTITY-SENSOR-MIB will provide the additional granularity.

If I were you I would be interested in ALL the temperatures, but if I had to pick only one then it would be the CPU.

Does this respond to your question?


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