Public bug reported: Using 3.19.0-28-generic #30~14.04.1-Ubuntu with stock i40e driver version 2.2.2-k makes every 'non physical' MAC output frame appear as copied back at input, as if the switch was doing frame 'mirroring' (and/or hair-pinning).
FYI same setup, with i40e upgraded to 1.2.48 from http://downloadmirror.intel.com/25282/eng/i40e-1.2.48.tar.gz behaves OK, fyi also we did a port mirroring setup at the switch directed to a different physical port for debugging, and didn't observe these frames to be physically present. See tcpdump -P in/out and more details at http://paste.ubuntu.com/12511680/ ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.19.0-28-generic 3.19.0-28.30~14.04.1 ProcVersionSignature: Ubuntu 3.19.0-28.30~14.04.1-generic 3.19.8-ckt5 Uname: Linux 3.19.0-28-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.13 Architecture: amd64 Date: Mon Sep 21 02:05:28 2015 ProcEnviron: TERM=screen PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux-lts-vivid UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux-lts-vivid (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug canonical-bootstack trusty uec-images -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1497812 Title: i40e bug: non physical MAC outbound frames appear as copied back inbound (mirrored) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-vivid/+bug/1497812/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs