[  517.011703] netdevsim netdevsim604 eni604np1: renamed from eth1
[  517.109289] netdevsim netdevsim448 eni448np1: renamed from eth0
[  517.315375] Could not find device with ifindex 2000 in netnsfd 11
[  517.315606] Could not find netns with fd: 2000
[  517.315757] Cannot link a netdevsim to itself
[  517.315910] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).