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Beginner

SG350X-24 switch overheating, shuts down ports under low stress

i have been recieving the following error on my SG350X-24 managed switch. it only occurs when we plug 2 devices into the switch's 10gbe ports (rj45, not sfp+), even when no data is being transferred over the 10gbe lines, the fans go from level 0, through 1-2-3-4 and then 5, followed shortly after by the following warning:

 

%Environment-A-ENV-MONITOR-CHNG: sensor 4 (Phy) temperature 99C .Temperature reached the critical threshold, All ports will be shut down in 2 minutes

 

the ports then shut down. the switch is cool to touch during this whole process.

 

switches are in a 25°C environment with good airflow.

 

i have two of these switches, linked together with an sfp+ cable. when i try the same test, but have 1x device connected to 1x rj45 10gbe port on each switch, instead of both on the same switch, there is no problem.

 

any ideas? i found another topic with similar reported issues with a SG500 a few years ago, looks like it was resolved with a firmware update, but i can't find any info about my switch in particular. https://bst.cloudapps.cisco.com/bugsearch/bug/CSCux37567/?rfs=iqvred

 

thanks!

 

4 REPLIES 4
Beginner

Re: SG350X-24 switch overheating, shuts down ports under low stress

here's the rest of the logs leading up to the error, maybe this helps!

 

%Environment-A-ENV-MONITOR-CHNG: sensor 4 (Phy) temperature 99C .Temperature reached the critical threshold, All ports will be shut down in 2 minutes

2147483468 2019-May-24 14:54:44 Informational %Environment-I-FANS-SPEED-CHNG: FAN’S speed level - 3 changed to level - 2.
2147483469 2019-May-24 14:53:49 Informational %Environment-I-FANS-SPEED-CHNG: FAN’S speed level - 4 changed to level - 3.
2147483470 2019-May-24 14:53:28 Informational %Environment-I-FANS-SPEED-CHNG: FAN’S speed level - 5 changed to level - 4.
2147483471 2019-May-24 14:52:43 Alert %Environment-A-ENV-MONITOR-CHNG: sensor 4 (Phy) temperature 93C .Temperature out from the critical threshold, enable all ports
2147483472 2019-May-24 14:52:30 Warning %LINK-W-Down: te1/0/2
2147483473 2019-May-24 14:52:02 Alert %Environment-A-ENV-MONITOR-CHNG: sensor 4 (Phy) temperature 99C .Temperature reached the critical threshold, All ports will be shut down in 2 minutes
2147483474 2019-May-24 14:51:17 Alert %Environment-A-ENV-MONITOR-CHNG: sensor 4 (Phy) temperature 96C .Temperature reached the warning threshold
2147483475 2019-May-24 14:50:21 Informational %Environment-I-FANS-SPEED-CHNG: FAN’S speed level - 4 changed to level - 5.
2147483476 2019-May-24 14:50:16 Informational %Environment-I-FANS-SPEED-CHNG: FAN’S speed level - 3 changed to level - 4.
2147483477 2019-May-24 14:50:11 Informational %Environment-I-FANS-SPEED-CHNG: FAN’S speed level - 2 changed to level - 3.
2147483478 2019-May-24 14:50:08 Warning %STP-W-PORTSTATUS: te1/0/2: STP status Forwarding

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Beginner

Re: SG350X-24 switch overheating, shuts down ports under low stress

This seems to be a bug in the 2.5.x code line.  I had the same issue after upgrading from the 2.4 code line.  Rolling back to the 2.4 line made everything happy again.

Rising star

Re: SG350X-24 switch overheating, shuts down ports under low stress

 

 - Switch temperature  does not correlate to network  traffic volumes on ports. Make sure the device is really in an appropriate operational environment concerning temperature.

 M.

Beginner

Re: SG350X-24 switch overheating, shuts down ports under low stress

I can confirm this is a bug.  Had to rollback firmware upgrade on a couple of them today because of this.  One of them was the only device in the rack in a 68F room.  At least on 2.5.0.83.

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