[  780.583497][T14563] netdevsim netdevsim472 eni472np1: renamed from eth0
[  780.598542][T14565] netdevsim netdevsim536 eni536np1: renamed from eth1
[  781.324010][T14551] Could not find device with ifindex 2000 in netnsfd 11
[  781.325309][T14551] Could not find netns with fd: 2000
[  781.325780][T14551] Cannot link a netdevsim to itself
[  781.326304][T14551] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).