[  484.899301] netdevsim netdevsim681 eni681np1: renamed from eth1
[  484.999607] netdevsim netdevsim324 eni324np1: renamed from eth0
[  485.392751] Could not find device with ifindex 2000 in netnsfd 11
[  485.392901] Could not find netns with fd: 2000
[  485.392982] Cannot link a netdevsim to itself
[  485.393075] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).