[  479.715652] netdevsim netdevsim270 eni270np1: renamed from eth0
[  479.817729] netdevsim netdevsim735 eni735np1: renamed from eth1
[  480.153385] Could not find device with ifindex 2000 in netnsfd 11
[  480.153529] Could not find netns with fd: 2000
[  480.153607] Cannot link a netdevsim to itself
[  480.153710] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).