[  960.843961][T12477] netdevsim netdevsim712 eni712np1: renamed from eth1
[  960.932748][T12643] netdevsim netdevsim257 eni257np1: renamed from eth0
[  962.625221][T12638] Could not find device with ifindex 2000 in netnsfd 11
[  962.626068][T12638] Could not find netns with fd: 2000
[  962.626618][T12638] Cannot link a netdevsim to itself
[  962.627254][T12638] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).