[  454.905962] netdevsim netdevsim484 eni484np1: renamed from eth0
[  454.906479] netdevsim netdevsim630 eni630np1: renamed from eth1
[  454.997469] Could not find device with ifindex 2000 in netnsfd 11
[  454.997575] Could not find netns with fd: 2000
[  454.997638] Cannot link a netdevsim to itself
[  454.997703] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).