[  749.006989][T14558] netdevsim netdevsim394 eni394np1: renamed from eth0
[  749.018593][T14559] netdevsim netdevsim557 eni557np1: renamed from eth1
[  749.553535][T14545] Could not find device with ifindex 2000 in netnsfd 11
[  749.554109][T14545] Could not find netns with fd: 2000
[  749.554537][T14545] Cannot link a netdevsim to itself
[  749.555026][T14545] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).