[  474.945879] netdevsim netdevsim438 eni438np1: renamed from eth0
[  474.946587] netdevsim netdevsim615 eni615np1: renamed from eth1
[  475.039308] Could not find device with ifindex 2000 in netnsfd 11
[  475.039395] Could not find netns with fd: 2000
[  475.039449] Cannot link a netdevsim to itself
[  475.039510] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).