[  454.413976] netdevsim netdevsim471 eni471np1: renamed from eth0
[  454.414673] netdevsim netdevsim753 eni753np1: renamed from eth1
[  454.512909] Could not find device with ifindex 2000 in netnsfd 11
[  454.513024] Could not find netns with fd: 2000
[  454.513074] Cannot link a netdevsim to itself
[  454.513128] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).