[  857.576328][T15752] netdevsim netdevsim303 eni303np1: renamed from eth0
[  857.584511][T15751] netdevsim netdevsim617 eni617np1: renamed from eth1
[  858.331027][T15740] Could not find device with ifindex 2000 in netnsfd 11
[  858.331815][T15740] Could not find netns with fd: 2000
[  858.332369][T15740] Cannot link a netdevsim to itself
[  858.333006][T15740] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).