[  484.133504] netdevsim netdevsim666 eni666np1: renamed from eth1
[  484.133925] netdevsim netdevsim343 eni343np1: renamed from eth0
[  484.227920] Could not find device with ifindex 2000 in netnsfd 11
[  484.227999] Could not find netns with fd: 2000
[  484.228039] Cannot link a netdevsim to itself
[  484.228089] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).