[  493.234691] netdevsim netdevsim384 eni384np1: renamed from eth0
[  493.330460] netdevsim netdevsim672 eni672np1: renamed from eth1
[  493.574665] Could not find device with ifindex 2000 in netnsfd 11
[  493.574986] Could not find netns with fd: 2000
[  493.575059] Cannot link a netdevsim to itself
[  493.575154] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).