[  490.343596] netdevsim netdevsim397 eni397np1: renamed from eth0
[  490.344470] netdevsim netdevsim669 eni669np1: renamed from eth1
[  490.429733] Could not find device with ifindex 2000 in netnsfd 11
[  490.429839] Could not find netns with fd: 2000
[  490.429891] Cannot link a netdevsim to itself
[  490.429947] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).