[  752.394478][T14638] netdevsim netdevsim257 eni257np1: renamed from eth0
[  752.406603][T14640] netdevsim netdevsim559 eni559np1: renamed from eth1
[  752.957987][T14626] Could not find device with ifindex 2000 in netnsfd 11
[  752.958512][T14626] Could not find netns with fd: 2000
[  752.958898][T14626] Cannot link a netdevsim to itself
[  752.959331][T14626] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).