I *think* I've seen the same issue on an RB951. A reboot has always fixed it and I've updated it every time it's played up. (currently on 6.13).
> -----Original Message----- > From: [email protected] [mailto:mikrotik- > [email protected]] On Behalf Of Scott Lambert > Sent: Thursday, 24 July 2014 8:32 AM > To: Mikrotik discussions > Subject: Re: [Mikrotik] x86 Ethernet problems with ROS 6.x > > On Wed, Jul 23, 2014 at 05:26:03PM -0500, Scott Lambert wrote: > > On Mon, Jul 21, 2014 at 05:30:25PM -0600, Craig Baird wrote: > > > A few months ago I upgraded a couple of x86 routers to RouterOS 6.x, > > > and have since had something strange happen with both. Out of the > > > blue, the routers will get into a state where one ethernet port cycles > > > between no-link and 1Gbps about once per second or two. Rebooting > the > > > router fixes the problem. This does not happen frequently. So far > > > it's been about every 5-10 weeks. One of these has 6.9 and the other > > > is running 6.12. They are Axiomtech NA-820 units with Intel GigE > > > ports. I'm assuming this is a 6.x problem since these units never had > > > an issue until I upgraded them, and now both of them have done this at > > > least once. > > > > > > Anyone know if any of the latest ROS builds might address this? > > > > I have no cure, but I have been seeing similar issues with one of my > > PowerRouter 732s which I believe is the same hardware. The UPS > between > > it and the grid is not terribly great. It is ancient and pre-dates our > > use of the site. > > > > I believe I only see this problem when a power event happens. One of > > the ports will start flapping at about the frequency you mention. This > > is always when a storm has come through the area, 50 miles from me. > > > > A reboot of the PR732 sorts it out immediately. I think the power > > browns out during the transition and something comes unglued in the > > ethernet device. The PR732 runs fine on the UPS after a reboot. I > > don't know if it's a driver issue or a hardware issue. > > > > I originally installed the PR732 running RouterOS 5.x with a small but > > new UPS. The UPS died and the person on-site plugged us into his UPS. > > Some time after that is when we started noticing these problems. I > > cannot remember if we had upgraded to RouterOS 6.x before the UPS died > > or after. > > Oh, one more thought. We also have a second PR732 in a different town > with a good UPS running the same firmware. We have not seen the port > flap problems on it. > > The configurations of the two routers are nearly identical. They both > have their Ethernets connected to one Netgear switch at each location. > The switches are the same model. > > -- > Scott Lambert KC5MLE Unix SysAdmin > [email protected] > > http://cqnewsroom.blogspot.com/2013/03/just-like-twitter-only-more- > advanced.html > _______________________________________________ > Mikrotik mailing list > [email protected] > http://mail.butchevans.com/mailman/listinfo/mikrotik > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS _______________________________________________ Mikrotik mailing list [email protected] http://mail.butchevans.com/mailman/listinfo/mikrotik Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS
