[  511.022751] netdevsim netdevsim320 eni320np1: renamed from eth0
[  511.119699] netdevsim netdevsim607 eni607np1: renamed from eth1
[  511.323018] Could not find device with ifindex 2000 in netnsfd 11
[  511.323212] Could not find netns with fd: 2000
[  511.323303] Cannot link a netdevsim to itself
[  511.323422] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).