topic RE: Switch rebooting daily in ExtremeSwitching (EXOS/Switch Engine)

Switch rebooting daily

JonathanW — Tue, 12 Oct 2021 18:20:00 GMT

I have 2 x460-g2 and 2 x440-48p stacked at my high school. Everyday for the past month or so they reboot around 10am-noon. I do not know what causes this, but it's becoming a headache especially getting closer to testing time. Can anyone help me with this? Thanks

RE: Switch rebooting daily

Stefan_K_ — Tue, 12 Oct 2021 18:24:00 GMT

Do you see anything in the logs? Command: "show log" (via CLI)

Regards

Stefan

RE: Switch rebooting daily

JonathanW — Tue, 12 Oct 2021 18:33:00 GMT

I'm not to tech savvy, but when I access the switch I see this repeating all day long.

RE: Switch rebooting daily

Stefan_K_ — Tue, 12 Oct 2021 18:37:00 GMT

Looks like there is one of the stacking cables faulty or one of the stack ports. Stacking problems can result in a reboot. Can you replace the cable?

RE: Switch rebooting daily

JonathanW — Tue, 12 Oct 2021 18:38:00 GMT

Could it possibly be the version being outdated?

RE: Switch rebooting daily

JonathanW — Tue, 12 Oct 2021 18:39:00 GMT

I don't have any extra stacking cables.

RE: Switch rebooting daily

slewfoot2xm — Tue, 12 Oct 2021 18:39:00 GMT

Or pull stacking cable for a minute and see if it still logs media errors on the cable.

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Looks like there is one of the stacking cables faulty or one of the stack ports. Stacking problems can result in a reboot. Can you replace the cable? -posted to the "ExtremeSwitching (EXOS)" community

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Re: Switch rebooting daily

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Oct 12, 2021 11:37 AM

Stefan K.

Looks like there is one of the stacking cables faulty or one of the stack ports. Stacking problems can result in a reboot. Can you replace the cable?

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RE: Switch rebooting daily

JonathanW — Tue, 12 Oct 2021 18:40:00 GMT

I'll try that after school lets out

RE: Switch rebooting daily

rod_barton — Tue, 12 Oct 2021 18:44:00 GMT

For your stacking setup are you using daisy chain or ring method to stack the switches?

RE: Switch rebooting daily

JonathanW — Tue, 12 Oct 2021 18:45:00 GMT

Looking at the back from 4:1 to 1:2 stacking ports, the lights aren't blinking like the rest. I am going to see about getting another cable

RE: Switch rebooting daily

JonathanW — Tue, 12 Oct 2021 18:48:00 GMT

I have 4 switches. stacking ports go 1:1 to 2:2, 2:1 to 3:2, 3:1 to 4:2, then 4:1 to 1:2

RE: Switch rebooting daily

BradP — Tue, 12 Oct 2021 18:51:00 GMT

Can you watch the results of a "show ports stack-ports rxerrors" and see if the CRC errors are counting up?

Thanks,
Brad

RE: Switch rebooting daily

Stachal — Tue, 12 Oct 2021 18:56:00 GMT

Looks like your port is flapping are you using passive 10G DAC for connectivity between or Fiber SFPs? Also if Fiber are they Multimode or Singlemode?

RE: Switch rebooting daily

rod_barton — Tue, 12 Oct 2021 18:58:00 GMT

Hi, you could try, as a test, removing the cable between 4:1 to 1:2 and see if this stops the log entries and the reboots. The switches will be in daisy-chain mode from when you remove the cable which is not ideal, but may help in alleviating the reboot issue.

RE: Switch rebooting daily

Adrian_Reyes — Tue, 12 Oct 2021 18:59:00 GMT

Hello i'm not part of this group, can you take me off of this emails?

Regards!!

RE: Switch rebooting daily

ECOMMERCE_lucas — Tue, 12 Oct 2021 19:03:00 GMT

I also just started getting blasted by emails from Extreme. I think they have a loose stacking cable too.

Jim Lucas

Network Manager

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RE: Switch rebooting daily

JonathanW — Tue, 12 Oct 2021 19:04:00 GMT

Fiber, not sure on multi or single.

RE: Switch rebooting daily

DJaquays — Tue, 12 Oct 2021 19:04:00 GMT

I concur.

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RE: Switch rebooting daily

JonathanW — Tue, 12 Oct 2021 19:05:00 GMT

I will try this afternoon. I don't want to lose connection during lunch. Will that drop the connection, or will it be ok to daisy chain until I can get another stacking cable?

RE: Switch rebooting daily

IT_Guy — Tue, 12 Oct 2021 19:06:00 GMT

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