[  486.881481] netdevsim netdevsim746 eni746np1: renamed from eth1
[  486.983017] netdevsim netdevsim447 eni447np1: renamed from eth0
[  487.343784] Could not find device with ifindex 2000 in netnsfd 11
[  487.343912] Could not find netns with fd: 2000
[  487.343981] Cannot link a netdevsim to itself
[  487.344072] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).