[  483.971406] netdevsim netdevsim313 eni313np1: renamed from eth0
[  483.971813] netdevsim netdevsim722 eni722np1: renamed from eth1
[  484.056668] Could not find device with ifindex 2000 in netnsfd 11
[  484.056755] Could not find netns with fd: 2000
[  484.056802] Cannot link a netdevsim to itself
[  484.056856] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).