[  517.016871] netdevsim netdevsim387 eni387np1: renamed from eth0
[  517.114553] netdevsim netdevsim523 eni523np1: renamed from eth1
[  517.323820] Could not find device with ifindex 2000 in netnsfd 11
[  517.323979] Could not find netns with fd: 2000
[  517.324065] Cannot link a netdevsim to itself
[  517.324166] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).