[  781.559889][T14581] netdevsim netdevsim397 eni397np1: renamed from eth0
[  781.573784][T14583] netdevsim netdevsim559 eni559np1: renamed from eth1
[  782.222094][T14569] Could not find device with ifindex 2000 in netnsfd 11
[  782.222611][T14569] Could not find netns with fd: 2000
[  782.223157][T14569] Cannot link a netdevsim to itself
[  782.223633][T14569] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).