[  523.251963] netdevsim netdevsim658 eni658np1: renamed from eth1
[  523.349743] netdevsim netdevsim461 eni461np1: renamed from eth0
[  523.604845] Could not find device with ifindex 2000 in netnsfd 11
[  523.605029] Could not find netns with fd: 2000
[  523.605127] Cannot link a netdevsim to itself
[  523.605236] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).