[  484.726610] netdevsim netdevsim657 eni657np1: renamed from eth1
[  484.823564] netdevsim netdevsim383 eni383np1: renamed from eth0
[  485.015899] Could not find device with ifindex 2000 in netnsfd 11
[  485.016276] Could not find netns with fd: 2000
[  485.016382] Cannot link a netdevsim to itself
[  485.016548] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).