[  520.643267] netdevsim netdevsim445 eni445np1: renamed from eth0
[  520.740647] netdevsim netdevsim671 eni671np1: renamed from eth1
[  520.995700] Could not find device with ifindex 2000 in netnsfd 11
[  520.995893] Could not find netns with fd: 2000
[  520.995991] Cannot link a netdevsim to itself
[  520.996105] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).