[  472.426828] netdevsim netdevsim350 eni350np1: renamed from eth0
[  472.427792] netdevsim netdevsim708 eni708np1: renamed from eth0
[  472.498517] Could not find device with ifindex 2000 in netnsfd 11
[  472.498603] Could not find netns with fd: 2000
[  472.498655] Cannot link a netdevsim to itself
[  472.498713] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).