[  512.515969] netdevsim netdevsim743 eni743np1: renamed from eth1
[  512.612241] netdevsim netdevsim280 eni280np1: renamed from eth0
[  512.830062] Could not find device with ifindex 2000 in netnsfd 11
[  512.830210] Could not find netns with fd: 2000
[  512.830282] Cannot link a netdevsim to itself
[  512.830368] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).