[  539.029453] netdevsim netdevsim290 eni290np1: renamed from eth0
[  539.129878] netdevsim netdevsim650 eni650np1: renamed from eth1
[  539.483557] Could not find device with ifindex 2000 in netnsfd 11
[  539.483699] Could not find netns with fd: 2000
[  539.483765] Cannot link a netdevsim to itself
[  539.483857] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).