[  474.249968] netdevsim netdevsim261 eni261np1: renamed from eth0
[  474.250387] netdevsim netdevsim649 eni649np1: renamed from eth1
[  474.335422] Could not find device with ifindex 2000 in netnsfd 11
[  474.335512] Could not find netns with fd: 2000
[  474.335557] Cannot link a netdevsim to itself
[  474.335608] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).