[  476.077238] netdevsim netdevsim668 eni668np1: renamed from eth1
[  476.077416] netdevsim netdevsim349 eni349np1: renamed from eth0
[  476.177881] Could not find device with ifindex 2000 in netnsfd 11
[  476.178056] Could not find netns with fd: 2000
[  476.178176] Cannot link a netdevsim to itself
[  476.178315] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).