[  521.642196] netdevsim netdevsim434 eni434np1: renamed from eth0
[  521.739450] netdevsim netdevsim605 eni605np1: renamed from eth1
[  521.948171] Could not find device with ifindex 2000 in netnsfd 11
[  521.948390] Could not find netns with fd: 2000
[  521.948494] Cannot link a netdevsim to itself
[  521.948614] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).