[  538.312288] netdevsim netdevsim722 eni722np1: renamed from eth1
[  538.413054] netdevsim netdevsim404 eni404np1: renamed from eth0
[  538.785173] Could not find device with ifindex 2000 in netnsfd 11
[  538.785342] Could not find netns with fd: 2000
[  538.785418] Cannot link a netdevsim to itself
[  538.785520] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).