[  512.268941] netdevsim netdevsim629 eni629np1: renamed from eth1
[  512.366197] netdevsim netdevsim292 eni292np1: renamed from eth0
[  512.576826] Could not find device with ifindex 2000 in netnsfd 11
[  512.576993] Could not find netns with fd: 2000
[  512.577089] Cannot link a netdevsim to itself
[  512.577205] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).