[  472.491793] netdevsim netdevsim305 eni305np1: renamed from eth0
[  472.492327] netdevsim netdevsim609 eni609np1: renamed from eth1
[  472.568191] Could not find device with ifindex 2000 in netnsfd 11
[  472.568328] Could not find netns with fd: 2000
[  472.568433] Cannot link a netdevsim to itself
[  472.568544] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).