[  486.398252] netdevsim netdevsim454 eni454np1: renamed from eth0
[  486.499267] netdevsim netdevsim512 eni512np1: renamed from eth1
[  486.869058] Could not find device with ifindex 2000 in netnsfd 11
[  486.869242] Could not find netns with fd: 2000
[  486.869341] Cannot link a netdevsim to itself
[  486.869469] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).