[  820.620113][T15794] netdevsim netdevsim319 eni319np1: renamed from eth0
[  820.666080][T15797] netdevsim netdevsim560 eni560np1: renamed from eth1
[  821.439800][T15781] Could not find device with ifindex 2000 in netnsfd 11
[  821.446048][T15781] Could not find netns with fd: 2000
[  821.446593][T15781] Cannot link a netdevsim to itself
[  821.447139][T15781] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).