[  486.555888] netdevsim netdevsim291 eni291np1: renamed from eth0
[  486.656440] netdevsim netdevsim758 eni758np1: renamed from eth1
[  487.042875] Could not find device with ifindex 2000 in netnsfd 11
[  487.043019] Could not find netns with fd: 2000
[  487.043096] Cannot link a netdevsim to itself
[  487.043203] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).