[  485.164381] netdevsim netdevsim631 eni631np1: renamed from eth1
[  485.264368] netdevsim netdevsim356 eni356np1: renamed from eth0
[  485.647513] Could not find device with ifindex 2000 in netnsfd 11
[  485.647655] Could not find netns with fd: 2000
[  485.647745] Cannot link a netdevsim to itself
[  485.647831] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).