[  486.724263] netdevsim netdevsim339 eni339np1: renamed from eth0
[  486.824654] netdevsim netdevsim682 eni682np1: renamed from eth1
[  487.146065] Could not find device with ifindex 2000 in netnsfd 11
[  487.146204] Could not find netns with fd: 2000
[  487.146325] Cannot link a netdevsim to itself
[  487.146415] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).