[  478.469220] netdevsim netdevsim391 eni391np1: renamed from eth0
[  478.470402] netdevsim netdevsim690 eni690np1: renamed from eth0
[  478.562728] Could not find device with ifindex 2000 in netnsfd 11
[  478.562832] Could not find netns with fd: 2000
[  478.562878] Cannot link a netdevsim to itself
[  478.562933] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).