Description
This article discusses models that do not support temperature sensors and what output will be seen after executing the sensor's command.
Scope
FortiGate.
Solution
Historically, entry-level/soho FortiGates such as the 30E, 50E/51E, 60E/61E, 80E, etc., did not have any onboard hardware monitoring/temperature sensors. However, the F-series FortiGates and later have since added onboard hardware/temperature sensors (e.g. 40F, 60F/61F, 80F/81F, 90G/91G).
It is worth noting that these onboard sensors are not the same as IPMI sensors (which often contain a richer set of sensor data). Generally speaking, FortiGate models at or above the 300-series (e.g. 300D, 300E, 400F, 600F, etc.) are equipped with IPMI sensors. For more info, see the following KB article: Technical Tip: View and clear IPMI events
Only IPMI sensors can provide information via SNMP about the temperature and other parameters.
The commands used to check the hardware/temperature sensor are shown below:
execute sensor list
execute sensor detail
If these commands are run on a FortiGate without onboard temperature sensors then the following error output will be observed as shown below:
execute sensor list
command parse error before 'sensor'
Command fail. Return code -61
execute sensor detail
command parse error before 'detail'
Command fail. Return code -61
The following example output is taken from a FortiGate-60F and FortiGate-100F respectively
FGT60F # exec sensor list
[HW monitor sensors]
1 CPU ON-DIE Temperature ........ 58.6 C
2 B50182 Temperature ............ 55.7 C
3 B50210_1 Temperature .......... 50.2 C
4 B50210_2 Temperature .......... 46.9 C
FG100F # exec sensor list
[HW monitor sensors]
1 PSU [1] ....................... OK
2 PSU [2] ....................... LOST
3 SYS Fan1 Speed ................ 4576 RPM
4 SYS Fan2 Speed ................ 4530 RPM
5 TMP1 External Temperature ..... 37.9 C
6 TMP4 ON-DIE Temperature ....... 29.0 C
7 CPU ON-DIE Temperature ........ 42.5 C
8 BCM Switch Temperature ........ 54.6 C
9 B50185 Temperature ............ 66.5 C
10 B50210_1 Temperature .......... 38.0 C
11 B50210_2 Temperature .......... 40.2 C
Even if these values are displayed in CLI, this does not mean they can be accessed by SNMP and relayed to the monitoring tool through polling or traps.
Related articles:
Technical Tip: SNMP OIDs to poll power supply and fan values
