[  473.168724] netdevsim netdevsim599 eni599np1: renamed from eth1
[  473.168879] netdevsim netdevsim445 eni445np1: renamed from eth0
[  473.247556] Could not find device with ifindex 2000 in netnsfd 11
[  473.247643] Could not find netns with fd: 2000
[  473.247687] Cannot link a netdevsim to itself
[  473.247742] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).