About 3 months ago I had an Rb2011 "lock up" the SFP port. Changed SFPs, patch cables, etc. A simple power cycle fixed it.
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Wed, Mar 11, 2020 at 9:24 AM Adam Moffett <dmmoff...@gmail.com> wrote: > I relate to "crazy explanations". A lot of the 2nd rate IT crowd stays > employed by not admitting when they don't know something. Always hit the > client or boss with techno babble and they'll think you're smart, meanwhile > failure to admit that their inferences have no underlying factual basis > prevents them from actually growing. The worst part is I think most of > them actually believe their own BS. </high_horse> > > If your client is using the CRS as a router then he'll be disappointed. > It does run RouterOS, but it's clearly marketed as a switch and has clear > and well advertised limits on CPU and memory. It's handy for that one time > in 20 when you need your switch to also run an IP tunnel or provide a DHCP > relay or some such > > That said, yes I've had watchdog resets that go away when you disable > connection tracking. It's not necessarily RAM though because you can > actually crash a CCR 1072 with a couple gigs of traffic and connection > tracking turned on. Those have 16GB of RAM and appear to be in no danger > of running out of RAM when they die. We could only guess why. In any case > if you don't need NAT or Mangle rules then you can safely disable > connection tracking with no ill effects. As you say, that might be worth a > try on those 4011's. > > > On 3/10/2020 11:14 PM, Ken Hohhof wrote: > > I don’t have a lot of 2011’s, but other than one that came with one > Ethernet port DOA, I don’t think I’ve seen that kind of problem on that > model. And mine are outdoors in uncontrolled environments. Well, except > for one at my office. > > > > One just general comment, are you tracking memory utilization (like > graphing via SNMP)? I have a weirdo customer who went from using Linux > computers as routers to using Mikrotiks, I think CRS series. He has his > own /24 and gets portscanned like crazy and has connection tracking on. He > complains that his Mikrotiks keep having to be rebooted or netinstalled and > he has all sorts of crazy explanations, but I’m convinced he is just > running out of memory due to his conntrack table filling up. Not my > problem though, so I’ve avoided getting sucked into it. > > > > 2011 has I think 128 MB RAM, the heavier duty Mikrotiks have somewhere > around 1 – 4 GB. I mean, I’ve still got a few smaller routers in my > network like 493G and 850Gx2 and I don’t see RAM running low, but just > tossing it out as a possibility. > > > > > > *From:* AF <af-boun...@af.afmug.com> <af-boun...@af.afmug.com> *On Behalf > Of *ch...@wbmfg.com > *Sent:* Tuesday, March 10, 2020 6:04 PM > *To:* AnimalFarm Microwave Users Group <af@af.afmug.com> <af@af.afmug.com> > *Subject:* Re: [AFMUG] RB4011 Lockups > > > > Stops handing out IPs and stops passing traffic. > > > > *From:* Colin Stanners > > *Sent:* Tuesday, March 10, 2020 4:09 PM > > *To:* AnimalFarm Microwave Users Group > > *Subject:* Re: [AFMUG] RB4011 Lockups > > > > What kind of issue? I haven't heard model-specific bugs with those so they > should "just work" forever. > > On Tue, Mar 10, 2020, 4:57 PM <ch...@wbmfg.com> wrote: > > We have been having a similar issue with a RB2011iL-iN . > > -----Original Message----- > From: Darren Shea > Sent: Tuesday, March 10, 2020 3:31 PM > To: 'AnimalFarm Microwave Users Group' > Subject: Re: [AFMUG] RB4011 Lockups > > I only have one RB4011 in the field, but it seems to have a problem a > couple > times a year. I now have it on a remote PDU which can power-cycle it when > it > stops responding to pings, but if they come out with a f/w fix for this > problem, I'd be very interested! > > -----Original Message----- > From: AF [mailto:af-boun...@af.afmug.com <af-boun...@af.afmug.com>] On > Behalf Of Nate Burke > Sent: Saturday, March 07, 2020 11:24 AM > To: Animal Farm > 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 > > ------------------------------ > > -- > 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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