[  775.680664][T14753] netdevsim netdevsim570 eni570np1: renamed from eth1
[  775.684835][T14752] netdevsim netdevsim270 eni270np1: renamed from eth0
[  776.269678][T14739] Could not find device with ifindex 2000 in netnsfd 11
[  776.270188][T14739] Could not find netns with fd: 2000
[  776.270539][T14739] Cannot link a netdevsim to itself
[  776.271180][T14739] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).