[  487.614955] netdevsim netdevsim486 eni486np1: renamed from eth0
[  487.616234] netdevsim netdevsim729 eni729np1: renamed from eth1
[  487.714815] Could not find device with ifindex 2000 in netnsfd 11
[  487.714926] Could not find netns with fd: 2000
[  487.714978] Cannot link a netdevsim to itself
[  487.715029] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).