[  473.627801] netdevsim netdevsim342 eni342np1: renamed from eth0
[  473.628172] netdevsim netdevsim514 eni514np1: renamed from eth1
[  473.719163] Could not find device with ifindex 2000 in netnsfd 11
[  473.719262] Could not find netns with fd: 2000
[  473.719312] Cannot link a netdevsim to itself
[  473.719364] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).