[ 98.229978][ T872] netdevsim netdevsim361 eni361np1: renamed from eth0 [ 98.312774][ T874] netdevsim netdevsim756 eni756np1: renamed from eth1 [ 102.524181][ T864] Could not find device with ifindex 2000 in netnsfd 11 [ 102.525084][ T864] Could not find netns with fd: 2000 [ 102.525674][ T864] Cannot link a netdevsim to itself [ 102.526367][ T864] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint). [ 104.239844][ T872] (udev-worker) (872) used greatest stack depth: 23904 bytes left