[  490.849883] netdevsim netdevsim270 eni270np1: renamed from eth0
[  490.850432] netdevsim netdevsim587 eni587np1: renamed from eth1
[  490.919898] Could not find device with ifindex 2000 in netnsfd 11
[  490.919992] Could not find netns with fd: 2000
[  490.920035] Cannot link a netdevsim to itself
[  490.920088] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).