[  457.233888] netdevsim netdevsim474 eni474np1: renamed from eth0
[  457.235128] netdevsim netdevsim560 eni560np1: renamed from eth1
[  457.326951] Could not find device with ifindex 2000 in netnsfd 11
[  457.327105] Could not find netns with fd: 2000
[  457.327208] Cannot link a netdevsim to itself
[  457.327322] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).