[  721.130996][T13052] netdevsim netdevsim466 eni466np1: renamed from eth0
[  721.145225][T13054] netdevsim netdevsim607 eni607np1: renamed from eth1
[  721.772255][T13040] Could not find device with ifindex 2000 in netnsfd 11
[  721.773109][T13040] Could not find netns with fd: 2000
[  721.773522][T13040] Cannot link a netdevsim to itself
[  721.774027][T13040] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).