[  473.588132] netdevsim netdevsim366 eni366np1: renamed from eth0
[  473.589541] netdevsim netdevsim663 eni663np1: renamed from eth0
[  473.667991] Could not find device with ifindex 2000 in netnsfd 11
[  473.668085] Could not find netns with fd: 2000
[  473.668130] Cannot link a netdevsim to itself
[  473.668179] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).