[  512.088875] netdevsim netdevsim302 eni302np1: renamed from eth0
[  512.186996] netdevsim netdevsim527 eni527np1: renamed from eth1
[  512.389373] Could not find device with ifindex 2000 in netnsfd 11
[  512.389550] Could not find netns with fd: 2000
[  512.389657] Cannot link a netdevsim to itself
[  512.389786] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).