[  485.480063] netdevsim netdevsim381 eni381np1: renamed from eth0
[  485.481353] netdevsim netdevsim574 eni574np1: renamed from eth1
[  485.574935] Could not find device with ifindex 2000 in netnsfd 11
[  485.575079] Could not find netns with fd: 2000
[  485.575192] Cannot link a netdevsim to itself
[  485.575331] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).