[  478.654636] netdevsim netdevsim373 eni373np1: renamed from eth0
[  478.655231] netdevsim netdevsim540 eni540np1: renamed from eth1
[  478.733730] Could not find device with ifindex 2000 in netnsfd 11
[  478.733878] Could not find netns with fd: 2000
[  478.733975] Cannot link a netdevsim to itself
[  478.734082] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).