[  485.942175] netdevsim netdevsim438 eni438np1: renamed from eth0
[  486.044185] netdevsim netdevsim573 eni573np1: renamed from eth1
[  486.444513] Could not find device with ifindex 2000 in netnsfd 11
[  486.444690] Could not find netns with fd: 2000
[  486.444778] Cannot link a netdevsim to itself
[  486.444898] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).