[  473.647897] netdevsim netdevsim336 eni336np1: renamed from eth0
[  473.648509] netdevsim netdevsim746 eni746np1: renamed from eth1
[  473.718961] Could not find device with ifindex 2000 in netnsfd 11
[  473.719048] Could not find netns with fd: 2000
[  473.719093] Cannot link a netdevsim to itself
[  473.719148] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).