After further investigation ;) and testing the problem seems a little bit more clear.
We've installed windows 2012r2 on the same server to be sure not having a potential hardware problem - !! On windows the same problem exists !! Than we changed the switch. At first, there was a netgear 8port unmanaged switch to a netgear 8+2port managed switch. No problem on windows neither a problem on linux with the managed switch (Release Notes Intel Driver - potential problem with unamanaged switches). No plug/unplug problem, no lost packets and not a wrong packet counter anymore. So all fine ? ... allmost The wrong packet counter and some of the misbehaviour on plug/unplug and also lost packets seems to come FROM THE SAME NETWORK ON BOTH INTERFACES !! Problem configuration 1: eth0 192.168.86.11/24 eth0:0 172.22.1.81/24 dhcp: eth1 172.22.1. 243/24 ping test to 172.22.1.81 and 172.22.1. 243 ------------------------------------------------------------------ Problem configuration 2: eth0 172.22.1.81/24 dhcp: eth1 172.22.1. 243/24 ping test to 172.22.1.81 and 172.22.1. 243 ------------------------------------------------------------------ Working configuration: eth0 192.168.86.11/24 dhcp: eth1 172.22.1. 243/24 ping test to 192.168.86.11 and 172.22.1. 243 ... so there seems to be a general bug left in network stack/logic of the kernel ... -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1370018 Title: igb driver does not initialize network cards - no link intel I210 rev03 Status in “linux” package in Ubuntu: Fix Released Status in “linux” source package in Trusty: In Progress Status in “linux” source package in Utopic: Fix Released Bug description: Hi, our new server installed with ubuntu 14.04.1 lts updated to the latest upstream kernel (Ubuntu 3.13.0-35.62-generic 3.13.11.6), is equipped with two Intel Corporation I210 Gigabit Network Connection (rev 03) nics. The correct network driver is loaded, but the link to the network switch is not always (most of the times) established. Randomly one, two, all or none of the nics will have a network link established (means lights on the nic are dark). This happens with cold or soft boots. Attached you will find an apport-report from our system. We have compiled the latest intel igb-driver downloaded from the intel website (igb-5.2.9.4) and installed it manually in the system. # cp igb.ko /lib/modules/3.13.0-35-generic/kernel/drivers/net/ethernet/intel/igb/igb.ko # update-initramfs -c -k all !! Using the latest intel driver the problem seems to be solved !! If I can supply any further information, please let me know Thanks in advance --- ApportVersion: 2.14.1-0ubuntu3.4 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 14.04 IwConfig: eth0 no wireless extensions. eth1 no wireless extensions. lo no wireless extensions. MachineType: FUJITSU PRIMERGY TX2540 M1 Package: linux (not installed) ProcEnviron: LANGUAGE=de_AT:de TERM=xterm PATH=(custom, no user) LANG=de_AT.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic root=UUID=0e2cf726-90e1-4868-8cc3-ae28d4d512d0 ro nomdmonddf nomdmonisw ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-35-generic N/A linux-backports-modules-3.13.0-35-generic N/A linux-firmware 1.127.5 RfKill: Error: [Errno 2] No such file or directory Tags: trusty trusty trusty Uname: Linux 3.13.0-35-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 07/15/2014 dmi.bios.vendor: FUJITSU // American Megatrends Inc. dmi.bios.version: V4.6.5.4 R1.12.0 for D3099-B1x dmi.board.name: D3099-B1 dmi.board.vendor: FUJITSU dmi.board.version: S26361-D3099-B12 WGS03 GS01 dmi.chassis.asset.tag: cpsvs3 dmi.chassis.type: 17 dmi.chassis.vendor: FUJITSU dmi.chassis.version: TX2540M1F5 dmi.modalias: dmi:bvnFUJITSU//AmericanMegatrendsInc.:bvrV4.6.5.4R1.12.0forD3099-B1x:bd07/15/2014:svnFUJITSU:pnPRIMERGYTX2540M1:pvrGS01:rvnFUJITSU:rnD3099-B1:rvrS26361-D3099-B12WGS03GS01:cvnFUJITSU:ct17:cvrTX2540M1F5: dmi.product.name: PRIMERGY TX2540 M1 dmi.product.version: GS01 dmi.sys.vendor: FUJITSU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1370018/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
