[ 1046.984289][T12581] netdevsim netdevsim500 eni500np1: renamed from eth0
[ 1047.095765][T12580] netdevsim netdevsim737 eni737np1: renamed from eth1
[ 1048.946989][T12573] Could not find device with ifindex 2000 in netnsfd 11
[ 1048.947972][T12573] Could not find netns with fd: 2000
[ 1048.948695][T12573] Cannot link a netdevsim to itself
[ 1048.949480][T12573] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).