[  485.799123] netdevsim netdevsim479 eni479np1: renamed from eth0
[  485.895550] netdevsim netdevsim719 eni719np1: renamed from eth1
[  486.103615] Could not find device with ifindex 2000 in netnsfd 11
[  486.104007] Could not find netns with fd: 2000
[  486.104097] Cannot link a netdevsim to itself
[  486.104196] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).