[  489.119248] netdevsim netdevsim683 eni683np1: renamed from eth1
[  489.215995] netdevsim netdevsim307 eni307np1: renamed from eth0
[  489.446122] Could not find device with ifindex 2000 in netnsfd 11
[  489.446351] Could not find netns with fd: 2000
[  489.446427] Cannot link a netdevsim to itself
[  489.446514] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).