[  948.042938][T12657] netdevsim netdevsim399 eni399np1: renamed from eth0
[  948.158589][T12659] netdevsim netdevsim619 eni619np1: renamed from eth1
[  949.836204][T12737] Could not find device with ifindex 2000 in netnsfd 11
[  949.837058][T12737] Could not find netns with fd: 2000
[  949.837663][T12737] Cannot link a netdevsim to itself
[  949.838351][T12737] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).