[  671.151721][T14433] netdevsim netdevsim412 eni412np1: renamed from eth0
[  671.157634][T14435] netdevsim netdevsim698 eni698np1: renamed from eth1
[  671.555228][T14421] Could not find device with ifindex 2000 in netnsfd 11
[  671.555561][T14421] Could not find netns with fd: 2000
[  671.555817][T14421] Cannot link a netdevsim to itself
[  671.556172][T14421] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).