[  770.360734][T14750] netdevsim netdevsim299 eni299np1: renamed from eth0
[  770.374511][T14752] netdevsim netdevsim756 eni756np1: renamed from eth1
[  770.957106][T14738] Could not find device with ifindex 2000 in netnsfd 11
[  770.957664][T14738] Could not find netns with fd: 2000
[  770.958186][T14738] Cannot link a netdevsim to itself
[  770.958714][T14738] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).