[  482.363534] netdevsim netdevsim453 eni453np1: renamed from eth0
[  482.465249] netdevsim netdevsim615 eni615np1: renamed from eth1
[  482.738340] Could not find device with ifindex 2000 in netnsfd 11
[  482.738494] Could not find netns with fd: 2000
[  482.738568] Cannot link a netdevsim to itself
[  482.738671] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).