[  494.334759] netdevsim netdevsim278 eni278np1: renamed from eth0
[  494.430700] netdevsim netdevsim567 eni567np1: renamed from eth1
[  494.678098] Could not find device with ifindex 2000 in netnsfd 11
[  494.678530] Could not find netns with fd: 2000
[  494.678686] Cannot link a netdevsim to itself
[  494.678835] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).