[  503.189107] netdevsim netdevsim333 eni333np1: renamed from eth0
[  503.285528] netdevsim netdevsim599 eni599np1: renamed from eth1
[  503.556020] Could not find device with ifindex 2000 in netnsfd 11
[  503.556230] Could not find netns with fd: 2000
[  503.556309] Cannot link a netdevsim to itself
[  503.556421] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).