[  512.259684] netdevsim netdevsim706 eni706np1: renamed from eth1
[  512.357911] netdevsim netdevsim322 eni322np1: renamed from eth0
[  512.561849] Could not find device with ifindex 2000 in netnsfd 11
[  512.562001] Could not find netns with fd: 2000
[  512.562071] Cannot link a netdevsim to itself
[  512.562159] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).