[  488.642462] netdevsim netdevsim422 eni422np1: renamed from eth0
[  488.744401] netdevsim netdevsim733 eni733np1: renamed from eth1
[  489.101573] Could not find device with ifindex 2000 in netnsfd 11
[  489.101747] Could not find netns with fd: 2000
[  489.101811] Cannot link a netdevsim to itself
[  489.101910] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).