[  486.344381] netdevsim netdevsim654 eni654np1: renamed from eth1
[  486.441690] netdevsim netdevsim498 eni498np1: renamed from eth0
[  486.681901] Could not find device with ifindex 2000 in netnsfd 11
[  486.682125] Could not find netns with fd: 2000
[  486.682224] Cannot link a netdevsim to itself
[  486.682340] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).