[  719.350573][T13050] netdevsim netdevsim474 eni474np1: renamed from eth0
[  719.362862][T13052] netdevsim netdevsim560 eni560np1: renamed from eth1
[  720.029194][T13038] Could not find device with ifindex 2000 in netnsfd 11
[  720.030031][T13038] Could not find netns with fd: 2000
[  720.030453][T13038] Cannot link a netdevsim to itself
[  720.030923][T13038] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).