[  489.328493] netdevsim netdevsim306 eni306np1: renamed from eth0
[  489.429668] netdevsim netdevsim657 eni657np1: renamed from eth1
[  489.789548] Could not find device with ifindex 2000 in netnsfd 11
[  489.789743] Could not find netns with fd: 2000
[  489.789840] Cannot link a netdevsim to itself
[  489.789962] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).