[  457.103548] netdevsim netdevsim428 eni428np1: renamed from eth0
[  457.104373] netdevsim netdevsim686 eni686np1: renamed from eth0
[  457.203985] Could not find device with ifindex 2000 in netnsfd 11
[  457.204160] Could not find netns with fd: 2000
[  457.204262] Cannot link a netdevsim to itself
[  457.204383] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).