[  522.516413] netdevsim netdevsim570 eni570np1: renamed from eth1
[  522.614152] netdevsim netdevsim497 eni497np1: renamed from eth0
[  522.852743] Could not find device with ifindex 2000 in netnsfd 11
[  522.852959] Could not find netns with fd: 2000
[  522.853064] Cannot link a netdevsim to itself
[  522.853173] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).