[  490.009916] netdevsim netdevsim662 eni662np1: renamed from eth1
[  490.107566] netdevsim netdevsim337 eni337np1: renamed from eth0
[  490.306816] Could not find device with ifindex 2000 in netnsfd 11
[  490.307085] Could not find netns with fd: 2000
[  490.307205] Cannot link a netdevsim to itself
[  490.307325] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).