[  764.482365][T14592] netdevsim netdevsim257 eni257np1: renamed from eth0
[  764.496044][T14594] netdevsim netdevsim722 eni722np1: renamed from eth1
[  765.043105][T14580] Could not find device with ifindex 2000 in netnsfd 11
[  765.043701][T14580] Could not find netns with fd: 2000
[  765.044173][T14580] Cannot link a netdevsim to itself
[  765.044673][T14580] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).