[  476.119732] netdevsim netdevsim511 eni511np1: renamed from eth0
[  476.120240] netdevsim netdevsim632 eni632np1: renamed from eth1
[  476.227256] Could not find device with ifindex 2000 in netnsfd 11
[  476.227383] Could not find netns with fd: 2000
[  476.227490] Cannot link a netdevsim to itself
[  476.227604] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).