[  735.123318][T13074] netdevsim netdevsim328 eni328np1: renamed from eth0
[  735.156081][T13076] netdevsim netdevsim621 eni621np1: renamed from eth1
[  735.856143][T13062] Could not find device with ifindex 2000 in netnsfd 11
[  735.857069][T13062] Could not find netns with fd: 2000
[  735.857574][T13062] Cannot link a netdevsim to itself
[  735.858165][T13062] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).