[  774.652780][T14451] netdevsim netdevsim538 eni538np1: renamed from eth1
[  774.658751][T14449] netdevsim netdevsim453 eni453np1: renamed from eth0
[  775.327184][T14437] Could not find device with ifindex 2000 in netnsfd 11
[  775.327891][T14437] Could not find netns with fd: 2000
[  775.328372][T14437] Cannot link a netdevsim to itself
[  775.328902][T14437] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).