[  459.251333] netdevsim netdevsim378 eni378np1: renamed from eth0
[  459.254623] netdevsim netdevsim645 eni645np1: renamed from eth1
[  459.338250] Could not find device with ifindex 2000 in netnsfd 11
[  459.338419] Could not find netns with fd: 2000
[  459.338526] Cannot link a netdevsim to itself
[  459.338646] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).