[  428.426634] netdevsim netdevsim260 eni260np1: renamed from eth0
[  428.427426] netdevsim netdevsim611 eni611np1: renamed from eth0
[  428.510161] Could not find device with ifindex 2000 in netnsfd 11
[  428.510274] Could not find netns with fd: 2000
[  428.510325] Cannot link a netdevsim to itself
[  428.510381] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).