[  518.599134] netdevsim netdevsim560 eni560np1: renamed from eth1
[  518.696599] netdevsim netdevsim307 eni307np1: renamed from eth0
[  518.913665] Could not find device with ifindex 2000 in netnsfd 11
[  518.913856] Could not find netns with fd: 2000
[  518.913940] Cannot link a netdevsim to itself
[  518.914053] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).