[  478.358353] netdevsim netdevsim511 eni511np1: renamed from eth0
[  478.359168] netdevsim netdevsim562 eni562np1: renamed from eth0
[  478.446488] Could not find device with ifindex 2000 in netnsfd 11
[  478.446631] Could not find netns with fd: 2000
[  478.446740] Cannot link a netdevsim to itself
[  478.446852] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).