[  487.914195] netdevsim netdevsim438 eni438np1: renamed from eth0
[  487.914630] netdevsim netdevsim515 eni515np1: renamed from eth1
[  487.985930] Could not find device with ifindex 2000 in netnsfd 11
[  487.986040] Could not find netns with fd: 2000
[  487.986126] Cannot link a netdevsim to itself
[  487.986224] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).