[  491.719276] netdevsim netdevsim547 eni547np1: renamed from eth1
[  491.819763] netdevsim netdevsim440 eni440np1: renamed from eth0
[  492.222341] Could not find device with ifindex 2000 in netnsfd 11
[  492.222530] Could not find netns with fd: 2000
[  492.222633] Cannot link a netdevsim to itself
[  492.222764] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).