[  485.110787] netdevsim netdevsim350 eni350np1: renamed from eth0
[  485.111555] netdevsim netdevsim641 eni641np1: renamed from eth1
[  485.210460] Could not find device with ifindex 2000 in netnsfd 11
[  485.210604] Could not find netns with fd: 2000
[  485.210715] Cannot link a netdevsim to itself
[  485.210828] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).