[  472.385351] netdevsim netdevsim516 eni516np1: renamed from eth1
[  472.385515] netdevsim netdevsim425 eni425np1: renamed from eth0
[  472.455945] Could not find device with ifindex 2000 in netnsfd 11
[  472.456027] Could not find netns with fd: 2000
[  472.456073] Cannot link a netdevsim to itself
[  472.456133] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).