[  479.507604] netdevsim netdevsim397 eni397np1: renamed from eth0
[  479.507811] netdevsim netdevsim742 eni742np1: renamed from eth1
[  479.596832] Could not find device with ifindex 2000 in netnsfd 11
[  479.596996] Could not find netns with fd: 2000
[  479.597105] Cannot link a netdevsim to itself
[  479.597224] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).