[  486.902304] netdevsim netdevsim438 eni438np1: renamed from eth0
[  487.003430] netdevsim netdevsim690 eni690np1: renamed from eth1
[  487.405753] Could not find device with ifindex 2000 in netnsfd 11
[  487.405929] Could not find netns with fd: 2000
[  487.406010] Cannot link a netdevsim to itself
[  487.406111] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).