I tried disabling autoneg, and it helped, but in this case dot1x auth doesn't work for some reason, I didn't have time to troubleshoot why, but there is no mac address on a switch port when dot1x is enabled. But i didn't try setting speed 1000 duplex full on a switch side. I'll try it tomorrow once again.
On Mon, Oct 26, 2015, 9:14 PM Rick Stevens <ri...@alldigital.com> wrote: > On 10/26/2015 09:57 AM, Kseniya Blashchuk wrote: > > Hi everyone! > > I noticed in dmesg that my ethernet link is flapping all the time > > [Oct25 18:55] r8169 0000:02:00.0 enp2s0: link down > > [ +3.131667] r8169 0000:02:00.0 enp2s0: link up > > [Oct25 18:56] r8169 0000:02:00.0 enp2s0: link down > > [ +2.763688] r8169 0000:02:00.0 enp2s0: link up > > [Oct25 18:59] r8169 0000:02:00.0 enp2s0: link down > > [ +3.060069] r8169 0000:02:00.0 enp2s0: link up > > [Oct25 19:00] r8169 0000:02:00.0 enp2s0: link down > > [ +3.559610] r8169 0000:02:00.0 enp2s0: link up > > I changed the cabling, tried to plug into another switch no difference. > > Any ideas will be very appreciated as this flapping brings a lot of > > inconvenience. > > My device in lspci: > > 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. > > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10) > > Uhm, could be a kernel issue or a driver issue. Generally when I see > that sort of thing it's an auto speed or auto duplex negotiation between > the driver and switch that isn't working. You could try forcing the > speed and duplex via something like: > > sudo ethtool -s enp2s0 autoneg off duplex full speed 1000 > > to set a fixed 1Gbps, full duplex connection and see if that helps > stabilize things. If that works you could try to restart auto > renegotiation via > > sudo ethtool -s enp2s0 autoneg on > sudo ethtool -r enp2s0 > > The first comment re-enables autonegotiation, the second forces a > renegotiation. > ---------------------------------------------------------------------- > - Rick Stevens, Systems Engineer, AllDigital ri...@alldigital.com - > - AIM/Skype: therps2 ICQ: 226437340 Yahoo: origrps2 - > - - > - Squawk! Pieces of Seven! Pieces of Seven! Parity Error! - > ---------------------------------------------------------------------- > -- > users mailing list > users@lists.fedoraproject.org > To unsubscribe or change subscription options: > https://admin.fedoraproject.org/mailman/listinfo/users > Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct > Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines > Have a question? Ask away: http://ask.fedoraproject.org >
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