Can you explain more about your setup? Which version of openstack are you running? How have you setup your instance? Which operating system / kernel version are you running in your instance? How are you generating outbound traffic from the instance? Is the outbound traffic going through other equipment which may be dropping those packets?
In my Trusty/Icehouse deploy, I've deployed instanced and observed the tapXXXXX interfaces on the compute node and noticed no large amount of dropped TX packets. ** Changed in: qemu-kvm (Ubuntu) Status: Confirmed => Incomplete ** Changed in: qemu-kvm (Ubuntu) Importance: Undecided => Medium ** Changed in: qemu (Ubuntu) Importance: Undecided => Medium ** Changed in: qemu (Ubuntu) Status: New => Incomplete ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs