[  477.244143] netdevsim netdevsim456 eni456np1: renamed from eth0
[  477.245020] netdevsim netdevsim713 eni713np1: renamed from eth0
[  477.329450] Could not find device with ifindex 2000 in netnsfd 11
[  477.329527] Could not find netns with fd: 2000
[  477.329561] Cannot link a netdevsim to itself
[  477.329598] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).