Hi all, Has anyone seen this before? Mar 21 10:00:20 dc1fdtptgcx03 kernel: /local/domain/0/device/vif/0: Connected Mar 21 10:00:20 dc1fdtptgcx03 last message repeated 2 times Mar 21 10:00:21 dc1fdtptgcx03 scripts-vif: Called as "add vif" domid:0 devid:0 mode:bridge Mar 21 10:00:21 dc1fdtptgcx03 kernel: eth8 renamed to side-12556-eth8 by udevd [6579] Mar 21 10:00:21 dc1fdtptgcx03 scripts-vif: Called as "online vif" domid:0 devid:0 mode:bridge Mar 21 10:00:21 dc1fdtptgcx03 scripts-vif: Setting vif0.0 MTU 1500 Mar 21 10:00:21 dc1fdtptgcx03 scripts-vif: Adding vif0.0 to xapi5 with address fe:ff:ff:ff:ff:ff Mar 21 10:00:21 dc1fdtptgcx03 scripts-vif: Failed to ip link set vif0.0 address fe:ff:ff:ff:ff:ff Mar 21 10:00:21 dc1fdtptgcx03 kernel: device vif0.0 entered promiscuous mode Mar 21 10:00:21 dc1fdtptgcx03 kernel: xapi5: port 7(vif0.0) entering forwarding state Mar 21 10:00:21 dc1fdtptgcx03 kernel: xapi42: port 1(bond3.3003) entering disabled state Mar 21 10:00:22 dc1fdtptgcx03 kernel: xapi34: port 1(bond3.3022) entering disabled state Mar 21 10:00:22 dc1fdtptgcx03 kernel: xapi17: port 1(bond3.3008) entering disabled state Mar 21 10:00:22 dc1fdtptgcx03 kernel: xapi33: port 1(bond3.3011) entering disabled state (repeated 40ish times on different interfaces) When it happens, network traffic stops on those ports, vms have to be migrated off, host restarted, then vms migrated back. Regards Paul Angus Senior Consultant / Cloud Architect S: +44 20 3603 0540<tel:+442036030540> | M: +4<tel:+447968161581>47711418784 | T: @CloudyAngus paul.angus@shapeblue.com<mailto:paul.angus@shapeblue.com> | www.shapeblue.com<http://www.shapeblue.com/> | Twitter:@shapeblue<https://twitter.com/> ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS Need Enterprise Grade Support for Apache CloudStack? Our CloudStack Infrastructure Support<http://shapeblue.com/cloudstack-infrastructure-support/> offers the best 24/7 SLA for CloudStack Environments. Apache CloudStack Bootcamp training courses **NEW!** CloudStack 4.2.1 training<http://shapeblue.com/cloudstack-training/> 18th-19th February 2014, Brazil. Classroom<http://shapeblue.com/cloudstack-training/> 17th-23rd March 2014, Region A. Instructor led, On-line<http://shapeblue.com/cloudstack-training/> 24th-28th March 2014, Region B. Instructor led, On-line<http://shapeblue.com/cloudstack-training/> 16th-20th June 2014, Region A. Instructor led, On-line<http://shapeblue.com/cloudstack-training/> 23rd-27th June 2014, Region B. Instructor led, On-line<http://shapeblue.com/cloudstack-training/> This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Shape Blue Ltd or related companies. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. Shape Blue Ltd is a company incorporated in England & Wales. ShapeBlue Services India LLP is a company incorporated in India and is operated under license from Shape Blue Ltd. Shape Blue Brasil Consultoria Ltda is a company incorporated in Brasil and is operated under license from Shape Blue Ltd. Sh apeBlue is a registered trademark.