[  518.738136] netdevsim netdevsim739 eni739np1: renamed from eth1
[  518.835168] netdevsim netdevsim335 eni335np1: renamed from eth0
[  519.080682] Could not find device with ifindex 2000 in netnsfd 11
[  519.080864] Could not find netns with fd: 2000
[  519.080942] Cannot link a netdevsim to itself
[  519.081045] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).