[  753.321505][T14467] netdevsim netdevsim394 eni394np1: renamed from eth0
[  753.329096][T14469] netdevsim netdevsim684 eni684np1: renamed from eth1
[  754.011513][T14455] Could not find device with ifindex 2000 in netnsfd 11
[  754.012152][T14455] Could not find netns with fd: 2000
[  754.012608][T14455] Cannot link a netdevsim to itself
[  754.013536][T14455] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).