[  487.072004] netdevsim netdevsim654 eni654np1: renamed from eth1
[  487.168808] netdevsim netdevsim437 eni437np1: renamed from eth0
[  487.358794] Could not find device with ifindex 2000 in netnsfd 11
[  487.359169] Could not find netns with fd: 2000
[  487.359292] Cannot link a netdevsim to itself
[  487.359441] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).