[  485.660516] netdevsim netdevsim386 eni386np1: renamed from eth0
[  485.762032] netdevsim netdevsim623 eni623np1: renamed from eth1
[  486.122527] Could not find device with ifindex 2000 in netnsfd 11
[  486.122701] Could not find netns with fd: 2000
[  486.122793] Cannot link a netdevsim to itself
[  486.122894] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).