If you have a baicells enb plugged into one, they will sometimes cause a broadcast storm, like a single port loop, if that makes sense, this causes a kernel panic and reboot. Things are really weird until you do a clean reboot. Mikrotik support can verify if this is the issue from the supout file.
On Sat, Mar 7, 2020, 1:46 PM Colin Stanners <cstann...@gmail.com> wrote: > Are they on the same customer data "path"? I saw a note that an occasional > CCR freeze with recent firmware was possibly due to the h232 NAT translator. > > On Sat, Mar 7, 2020, 12:33 PM Nate Burke <n...@blastcomm.com> wrote: > >> It's just strange that these have been deployed for Months, but 2 locked >> up in the same week. And 5 days apart, with different firmware, both in >> temperature controlled indoor racks. I don't think it was triggered by >> some rogue WAN Packets. If that was the case, I'd expect they both >> would have locked up at the same time. MRTG showed no change in RAM >> usage, or CPU prior to the lockup. >> >> On 3/7/2020 12:04 PM, Ken Hohhof wrote: >> > I don't have very many RB4011's. One RB4011iGS+ at a tower site in an >> > outdoor NEMA box running 6.43.16 and no problems. One >> RB4011iGS+5HacQ2HnD >> > running 6.45.5 at a customer site with 84 days uptime. That one used to >> > reboot occasionally with a log message about having to reboot due to >> some >> > kernel problem. It seems to have stopped that since the FW upgrade but >> hard >> > to tell since it happened maybe once every 2 weeks. >> > >> > I have some RB1100AHx4's which is a very similar architecture and I've >> seen >> > occasional unexplained reboots on 2 of them. No lockups though. The >> ones >> > that have rebooted are still on 6.40.8, a more recent one is on 6.43.16 >> and >> > AFAIK has not rebooted but it did stop once responding to Winbox and >> had to >> > be manually rebooted. Everything else seemed to be running fine >> including >> > PPPoE server, RADIUS, and Mikrotik API. >> > >> > >> > -----Original Message----- >> > From: AF <af-boun...@af.afmug.com> On Behalf Of Nate Burke >> > Sent: Saturday, March 7, 2020 11:24 AM >> > To: Animal Farm <af@af.afmug.com> >> > Subject: [AFMUG] RB4011 Lockups >> > >> > This week I've had 2 RB4011 Routers lockup requiring a power cycle. They >> > were still passing some traffic, but stopped doing things like handing >> out >> > DHCP, or responding to SNMP. And you couldn't log into them via Winbox >> or >> > MACNeighbor. >> > >> > One was on ROS6.44.3, the other on ROS6.45. Both of them were doing >> NAT, >> > whereas most of my Mikrotiks are only routing. Both of these locations >> have >> > multiple RB4011s, and only the one doing NAT locked up. >> > Nothing is recorded in the log other than the reboot. These were both >> > routers that have been installed for months. One router lockup I can >> > attribute to a fluke, but 2 in the same week is worrysome. Has any one >> else >> > noticed anything? >> > >> > -- >> > AF mailing list >> > AF@af.afmug.com >> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > >> > >> > >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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