[  475.824175] netdevsim netdevsim501 eni501np1: renamed from eth0
[  475.824948] netdevsim netdevsim574 eni574np1: renamed from eth1
[  475.911803] Could not find device with ifindex 2000 in netnsfd 11
[  475.911943] Could not find netns with fd: 2000
[  475.912044] Cannot link a netdevsim to itself
[  475.912187] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).