[  486.097221] netdevsim netdevsim269 eni269np1: renamed from eth0
[  486.098696] netdevsim netdevsim683 eni683np1: renamed from eth1
[  486.474653] Could not find device with ifindex 2000 in netnsfd 11
[  486.474798] Could not find netns with fd: 2000
[  486.474898] Cannot link a netdevsim to itself
[  486.474997] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).