[  473.456969] netdevsim netdevsim320 eni320np1: renamed from eth0
[  473.457401] netdevsim netdevsim651 eni651np1: renamed from eth1
[  473.538648] Could not find device with ifindex 2000 in netnsfd 11
[  473.538787] Could not find netns with fd: 2000
[  473.538894] Cannot link a netdevsim to itself
[  473.539016] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).