I have an S8-POE with a local controller resting on top. Starting this morning the switch has started randomly rebooting. I suspect it is overheating. How can I confirm if that is the issue? Has there been guidance to not stack the two devices together?
It’s generally not recommended to stack them unless you have another form of airflow, such as an enclosed rack with fans exhausting generated heat.
If you click the icon of the switch (when it’s online and functioning), you get this view:
Which as you can see, has the temperature of the switch listed at the bottom.
I had mine stacked and it overheated and continently rebooted, but its working great now that its not stacked.
Stacking with the S8-PoE (or any passively cooled device, for that matter) is just not a good idea. The S8-PoE is intended as a desktop switch which is half of the reason why there is no active cooling, the other half is simply its size. There are, of course, some corner case exceptions to this rule, but those obviously don’t apply if the switch is rebooting due to heat.
Can we also get the temperature shown for AP’s in manage.alta.inc like it’s shown for the switches @Alta-Matt_v2 ?
This would be really nice!
I know about
for i in /sys/class/thermal/thermal_zone*/temp; do echo “Zone ${i##*/thermal_zone}: $(($(cat $i) / 1000)) C”; done
but this info in the GUI would be much easier
The reason that’s not implemented yet is right there in the one-liner, there are 4 “zones” of temperature measurement. Displaying all 4 would be cluttering. What would you like to see? Off the top of my head, I’m thinking of these potential implementations (pick one or add if I missed something):
- Average
- Highest
- [Lowest]/[Highest]
- [Average]/[Highest]
I think average is perfectly acceptable. It gives you a reasonable idea of what is going on.
Average is perfectly fine and if I wanted to know in more detail (zones) I would be willing to dive into SSH.
I you really want to get slick, make the color of the number a sliding scale. Green for “totally fine”, yellow for “getting hot”, red for “bruh, get it out of the sun”.
Yesss - nice one @rutman286
I like it, but “bruh” doesn’t translate into all languages
Well, you guys just make it easy, now I can just copy the URL of this thread and paste it into the ticket.
That’s fair enough. It’s been a long week already and it’s only Tuesday. Just trying to lighten the mood a bit.
It’s only TUESDAY?!?!?!
I had issues with a rebooting POE8
It wasn’t stacked on top anything but all ports were full.
I worked with support and we concluded it was rebooting due to heat and they told me the limit was 50c
They told me it’s a desktop product but this unit was in my garage and it’s not hard for a computer to reach 50c. I think they need to rethink the design to attach a larger heatsink or even include a tiny fan.
I seem to have overheating issues as well.
Alta S8 Switch Installed under the roof which can get pretty toasty.
Took me a while to understand that its due to overheating as reboot reasons aren’t reported anywhere?
The Mikrotik RB2011 which was on the same location before, handled it without issues.
Wondering if I can customize and improve cooling a little…
The sides of the RB2011 has vent holes for heat dissipation. Without modifying the shell of the Alta POE8 and voiding your warranty, there really isn’t a way. This has been one of my concerns with the Route10 which shares a similar shell design.
I may take the plunge with drilling some slots for ventilation.
Are you actually feeling heat issues Beaker? My Route10 really does not run warm at all…
I totally get the curiosity, but I am genuinely wondering. I will tell you there was a lot of thought put into making sure the heats is dissipated throughout the entirety of the case.
I’ve yet to experience any performance issues thus far as I’m still lab testing the eco system. What I’m concerned with is long term utilization at full demand. Without any of the SFP cages in operation, one PoE active supporting an Alta AP PRO, an Alta Control, and virtually no traffic, the Route10 seems to tread anywhere between 117-120F.
Whats your ambient temps? Mind are about 70f and the route10 runs about 110f with poe powered ap6 pro and sfp+ dac connected to a switch under what id consider regular use. I noticed when i was letting iperf run for a bit it would warm up a little about 5f more but nothing i was concerned with.
Avg AT is at 72.0F
Hum 42%