[  517.455789] netdevsim netdevsim449 eni449np1: renamed from eth0
[  517.552752] netdevsim netdevsim658 eni658np1: renamed from eth1
[  517.770848] Could not find device with ifindex 2000 in netnsfd 11
[  517.771041] Could not find netns with fd: 2000
[  517.771124] Cannot link a netdevsim to itself
[  517.771225] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).