[  519.559406] netdevsim netdevsim696 eni696np1: renamed from eth1
[  519.656850] netdevsim netdevsim389 eni389np1: renamed from eth0
[  519.876386] Could not find device with ifindex 2000 in netnsfd 11
[  519.876590] Could not find netns with fd: 2000
[  519.876700] Cannot link a netdevsim to itself
[  519.876837] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).