[  760.113240][T14740] netdevsim netdevsim506 eni506np1: renamed from eth0
[  760.129749][T14742] netdevsim netdevsim715 eni715np1: renamed from eth1
[  760.652086][T14728] Could not find device with ifindex 2000 in netnsfd 11
[  760.652542][T14728] Could not find netns with fd: 2000
[  760.652883][T14728] Cannot link a netdevsim to itself
[  760.653576][T14728] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).