[  486.289149] netdevsim netdevsim557 eni557np1: renamed from eth1
[  486.389883] netdevsim netdevsim375 eni375np1: renamed from eth0
[  486.703101] Could not find device with ifindex 2000 in netnsfd 11
[  486.703240] Could not find netns with fd: 2000
[  486.703321] Cannot link a netdevsim to itself
[  486.703414] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).