[  720.669462][T13047] netdevsim netdevsim458 eni458np1: renamed from eth0
[  720.689200][T13049] netdevsim netdevsim640 eni640np1: renamed from eth1
[  721.292811][T13035] Could not find device with ifindex 2000 in netnsfd 11
[  721.293639][T13035] Could not find netns with fd: 2000
[  721.294017][T13035] Cannot link a netdevsim to itself
[  721.298886][T13035] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).