Stephane The network itself is pretty stock; the mtu on the switches is set to 9000; other than that its pretty much the standard cisco configuration for the switch model.
I have the full details (but can't put them here :-)). -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1402763 Title: Multicast traffic not propating correctly over linux bridge Status in juju-core: Triaged Status in linux package in Ubuntu: Confirmed Status in lxc package in Ubuntu: Confirmed Bug description: There's a lot of supposition in the title of this bug but its currently my best guess. In this deployment, I have a number of services running in LXC containers across multiple physical hosts; each service is clustered across three units, all on separate physical hosts, using corosync and pacemaker; when using multicast to support cluster communication, I occasionally see a container drop out of the cluster and use its isolation response (to shutdown all managed services); when using unicast I've not yet see this same problem. LXC containers are bridged to the main physical network using a linux bridge: eth0 <-> juju-br0 <-> vethXXX <-> | vethXXX | All MTU's are standard (1500). ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: lxc 1.0.6-0ubuntu0.1 ProcVersionSignature: User Name 3.13.0-40.69-generic 3.13.11.10 Uname: Linux 3.13.0-40-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 Date: Mon Dec 15 17:20:08 2014 ProcEnviron: TERM=screen-bce PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: lxc UpgradeStatus: No upgrade log present (probably fresh install) defaults.conf: lxc.network.type = veth lxc.network.link = lxcbr0 lxc.network.flags = up lxc.network.hwaddr = 00:16:3e:xx:xx:xx --- AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Dec 17 10:16 seq crw-rw---- 1 root audio 116, 33 Dec 17 10:16 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 14.04 IwConfig: Error: [Errno 2] No such file or directory MachineType: Dell Inc. PowerEdge R610 Package: lxc 1.0.6-0ubuntu0.1 PackageArchitecture: amd64 PciMultimedia: ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic root=UUID=5a86874d-8bbd-4e7a-b73e-17c914de390b ro ProcEnviron: TERM=screen-bce PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic root=UUID=5a86874d-8bbd-4e7a-b73e-17c914de390b ro ProcVersionSignature: User Name 3.13.0-43.72-generic 3.13.11.11 RfKill: Error: [Errno 2] No such file or directory Tags: trusty uec-images trusty uec-images apparmor Uname: Linux 3.13.0-43-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dialout dip floppy libvirtd netdev plugdev sudo video _MarkForUpload: True defaults.conf: lxc.network.type = veth lxc.network.link = lxcbr0 lxc.network.flags = up lxc.network.hwaddr = 00:16:3e:xx:xx:xx dmi.bios.date: 08/18/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: 6.0.7 dmi.board.name: 0F0XJ6 dmi.board.vendor: Dell Inc. dmi.board.version: A11 dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr6.0.7:bd08/18/2011:svnDellInc.:pnPowerEdgeR610:pvr:rvnDellInc.:rn0F0XJ6:rvrA11:cvnDellInc.:ct23:cvr: dmi.product.name: PowerEdge R610 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/juju-core/+bug/1402763/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp