[ 1308.743402][T13146] netdevsim netdevsim721 eni721np1: renamed from eth1
[ 1308.761608][T13147] netdevsim netdevsim474 eni474np1: renamed from eth0
[ 1311.524070][T13134] Could not find device with ifindex 2000 in netnsfd 11
[ 1311.526208][T13134] Could not find netns with fd: 2000
[ 1311.528385][T13134] Cannot link a netdevsim to itself
[ 1311.529500][T13134] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).