[  486.364897] netdevsim netdevsim503 eni503np1: renamed from eth0
[  486.466571] netdevsim netdevsim527 eni527np1: renamed from eth1
[  486.763805] Could not find device with ifindex 2000 in netnsfd 11
[  486.763974] Could not find netns with fd: 2000
[  486.764062] Cannot link a netdevsim to itself
[  486.764175] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).