[  472.083178] netdevsim netdevsim454 eni454np1: renamed from eth0
[  472.084039] netdevsim netdevsim700 eni700np1: renamed from eth0
[  472.162193] Could not find device with ifindex 2000 in netnsfd 11
[  472.162278] Could not find netns with fd: 2000
[  472.162322] Cannot link a netdevsim to itself
[  472.162377] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).