[  515.514757] netdevsim netdevsim381 eni381np1: renamed from eth0
[  515.611829] netdevsim netdevsim574 eni574np1: renamed from eth1
[  515.835372] Could not find device with ifindex 2000 in netnsfd 11
[  515.835600] Could not find netns with fd: 2000
[  515.835711] Cannot link a netdevsim to itself
[  515.835823] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).