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 ricks@xxxxxxxxxxxxxx - - AIM/Skype: therps2 ICQ: 226437340 Yahoo: origrps2 - - - - Squawk! Pieces of Seven! Pieces of Seven! Parity Error! - ---------------------------------------------------------------------- -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx 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
