[  542.941669] netdevsim netdevsim377 eni377np1: renamed from eth0
[  543.044178] netdevsim netdevsim546 eni546np1: renamed from eth1
[  543.400800] Could not find device with ifindex 2000 in netnsfd 11
[  543.400934] Could not find netns with fd: 2000
[  543.401027] Cannot link a netdevsim to itself
[  543.401124] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).