[  521.976064] netdevsim netdevsim319 eni319np1: renamed from eth0
[  522.072477] netdevsim netdevsim579 eni579np1: renamed from eth1
[  522.280747] Could not find device with ifindex 2000 in netnsfd 11
[  522.280926] Could not find netns with fd: 2000
[  522.281023] Cannot link a netdevsim to itself
[  522.281128] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).