[  476.685179] netdevsim netdevsim454 eni454np1: renamed from eth0
[  476.685936] netdevsim netdevsim691 eni691np1: renamed from eth1
[  476.795930] Could not find device with ifindex 2000 in netnsfd 11
[  476.796088] Could not find netns with fd: 2000
[  476.796199] Cannot link a netdevsim to itself
[  476.796317] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).