[  480.218741] netdevsim netdevsim344 eni344np1: renamed from eth0
[  480.219871] netdevsim netdevsim669 eni669np1: renamed from eth0
[  480.325981] Could not find device with ifindex 2000 in netnsfd 11
[  480.326099] Could not find netns with fd: 2000
[  480.326155] Cannot link a netdevsim to itself
[  480.326228] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).