[  523.208232] netdevsim netdevsim703 eni703np1: renamed from eth1
[  523.304862] netdevsim netdevsim305 eni305np1: renamed from eth0
[  523.556378] Could not find device with ifindex 2000 in netnsfd 11
[  523.556645] Could not find netns with fd: 2000
[  523.556776] Cannot link a netdevsim to itself
[  523.556904] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).