[  484.942482] netdevsim netdevsim471 eni471np1: renamed from eth0
[  484.943315] netdevsim netdevsim512 eni512np1: renamed from eth1
[  485.042004] Could not find device with ifindex 2000 in netnsfd 11
[  485.042097] Could not find netns with fd: 2000
[  485.042143] Cannot link a netdevsim to itself
[  485.042192] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).