[  763.109192][T14564] netdevsim netdevsim290 eni290np1: renamed from eth0
[  763.120171][T14566] netdevsim netdevsim750 eni750np1: renamed from eth1
[  763.670071][T14552] Could not find device with ifindex 2000 in netnsfd 11
[  763.676156][T14552] Could not find netns with fd: 2000
[  763.676764][T14552] Cannot link a netdevsim to itself
[  763.677257][T14552] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).