Comment 1 for bug 1262785

from the ovs-vswitchd.log when creating the probe:
Dec 19 20:46:06|00067|bridge|INFO|created port tap594cd882-56 on bridge br-int
Dec 19 20:46:06|00068|netdev_linux|WARN|/sys/class/net/tap594cd882-56/carrier: open failed: No such file or directory
Dec 19 20:46:06|00069|bridge|WARN|bridge br-int: using default bridge Ethernet address 26:27:38:9f:c0:47
Dec 19 20:46:06|00070|netdev_linux|INFO|ioctl(SIOCGIFHWADDR) on tap21778bfb-ec device failed: No such device
Dec 19 20:46:06|00071|bridge|WARN|bridge br-ex: using default bridge Ethernet address 9a:a5:5e:8d:fd:4f
Dec 19 20:46:06|00072|netdev_linux|WARN|ioctl(SIOCGIFINDEX) on tap21778bfb-ec device failed: No such device
Dec 19 20:46:06|00073|netdev|WARN|failed to get flags for network device tap21778bfb-ec: No such device
Dec 19 20:46:07|00074|netdev_linux|WARN|ethtool command ETHTOOL_GSET on network device tap594cd882-56 failed: No such device
Dec 19 20:46:07|00075|netdev_linux|INFO|ioctl(SIOCGIFHWADDR) on tap594cd882-56 device failed: No such device
Dec 19 20:46:07|00076|netdev_linux|WARN|ioctl(SIOCGIFINDEX) on tap594cd882-56 device failed: No such device
Dec 19 20:46:07|00077|netdev_linux|WARN|tap594cd882-56: linux-sys get stats failed 19
Dec 19 20:46:07|00078|netdev_linux|WARN|ethtool command ETHTOOL_GDRVINFO on network device tap594cd882-56 failed: No such device
Dec 19 20:46:07|00079|netdev_linux|WARN|ethtool command ETHTOOL_GSET on network device tap594cd882-56 failed: No such device
Dec 19 20:46:07|00080|netdev_linux|WARN|ioctl(SIOCGIFINDEX) on tap21778bfb-ec device failed: No such device
Dec 19 20:46:07|00081|netdev_linux|WARN|tap21778bfb-ec: linux-sys get stats failed 19
Dec 19 20:46:07|00082|netdev_linux|WARN|ethtool command ETHTOOL_GDRVINFO on network device tap21778bfb-ec failed: No such device
Dec 19 20:46:07|00083|netdev_linux|WARN|ethtool command ETHTOOL_GSET on network device tap21778bfb-ec failed: No such device
Dec 19 20:46:12|00084|netdev_linux|WARN|ioctl(SIOCGIFINDEX) on tap594cd882-56 device failed: No such device
Dec 19 20:46:12|00085|netdev_linux|WARN|tap594cd882-56: linux-sys get stats failed 19
Dec 19 20:46:12|00086|netdev_linux|WARN|ethtool command ETHTOOL_GDRVINFO on network device tap594cd882-56 failed: No such device
Dec 19 20:46:12|00087|netdev_linux|WARN|ethtool command ETHTOOL_GSET on network device tap594cd882-56 failed: No such device
Dec 19 20:46:12|00088|netdev_linux|WARN|ioctl(SIOCGIFINDEX) on tap21778bfb-ec device failed: No such device
Dec 19 20:46:12|00089|netdev_linux|WARN|tap21778bfb-ec: linux-sys get stats failed 19
Dec 19 20:46:12|00090|netdev_linux|WARN|ethtool command ETHTOOL_GDRVINFO on network device tap21778bfb-ec failed: No such device