[  795.389231][T14779] netdevsim netdevsim391 eni391np1: renamed from eth0
[  795.399121][T14781] netdevsim netdevsim519 eni519np1: renamed from eth1
[  796.048779][T14767] Could not find device with ifindex 2000 in netnsfd 11
[  796.049347][T14767] Could not find netns with fd: 2000
[  796.055022][T14767] Cannot link a netdevsim to itself
[  796.055473][T14767] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).