[  490.157118] netdevsim netdevsim307 eni307np1: renamed from eth0
[  490.158465] netdevsim netdevsim673 eni673np1: renamed from eth1
[  490.247509] Could not find device with ifindex 2000 in netnsfd 11
[  490.247610] Could not find netns with fd: 2000
[  490.247658] Cannot link a netdevsim to itself
[  490.247716] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).