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signa
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Joined: Fri Feb 08, 2019 7:33 pm

RB4011 high, uneven CPU load and a crash.

Sun Aug 11, 2019 10:28 pm

Is the following normal operation for the 4011? It is doing basic routing, simple queues and firewall/nat.

You can see from the first graph on Friday all went to hell, it was barely accessible via MAC-telnet but managed to reboot.
4011-load.JPG
4011-load.JPG
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Last edited by signa on Mon Aug 12, 2019 11:41 pm, edited 1 time in total.
 
Dude2048
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Joined: Thu Sep 01, 2016 4:04 pm

Re: RB4011 high, uneven CPU load and a crash.

Sun Aug 11, 2019 10:49 pm

Export config. Hide sensitive
 
r00t
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Re: RB4011 high, uneven CPU load and a crash.

Mon Aug 12, 2019 2:54 am

After it crashes or reboots, generate and send supout to support@mikrotik.com - that's the ONLY way how to get any official support and to help them fix this issue.
Posting here on forum does nothing, except maybe informs other users about it.
 
signa
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Re: RB4011 high, uneven CPU load and a crash.

Mon Aug 12, 2019 4:32 pm

Who says I haven't sent the sup out info in already regarding the crash?

That was merely one part of the issue and informing the community helps if anyone experiences the same in the future.

The second part which is open to the community, including the Tik bods, was the question about normal operation of a multicore router.

I have emailed Mikrotik many a time before and had no response so reaching out to the forum is my second port of call.

If you don't have anything to add, please don't respond at all.
 
erlinden
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Re: RB4011 high, uneven CPU load and a crash.

Mon Aug 12, 2019 4:52 pm

Who says I haven't sent the sup out info in already regarding the crash?
You haven't said you did...and it does make sense to give the advice.

Based on the information you supplied...this is not normal operation.
Could you please share your config (as per requested by Dude2048)?
What version are you running?
 
toxicfusion
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Re: RB4011 high, uneven CPU load and a crash.

Tue Aug 13, 2019 6:49 pm

Interesting! Not to hijack, with PRTG you using? I like those graphs.

Do you have any ipsec tunnels? Are you using bridge vlan configuration? do your config export.... /export hide-sensitive
 
signa
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Re: RB4011 high, uneven CPU load and a crash.

Tue Aug 13, 2019 9:05 pm

Thanks peeps, will post config as soon as I get back to the office.

Graphs are from Librenms, yes to a single IPSEC tunnel back to our NOC, very little traffic. No VLANs.
 
toxicfusion
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Re: RB4011 high, uneven CPU load and a crash.

Tue Aug 13, 2019 9:24 pm

It might be the IPsec tunnel (HW Offload) with the type your using (Encryption type). Unsure if a bug and its loading up on single CPU core. I wouldnt worry if only single core being loaded up.
DH Group
SHA, MD5?
SHA-128, SHA-256?

What routerOS release? Try the 6.45 long term.

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