[  493.288809] netdevsim netdevsim518 eni518np1: renamed from eth1
[  493.384801] netdevsim netdevsim384 eni384np1: renamed from eth0
[  493.648756] Could not find device with ifindex 2000 in netnsfd 11
[  493.649190] Could not find netns with fd: 2000
[  493.649306] Cannot link a netdevsim to itself
[  493.649400] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).