[  547.343338] netdevsim netdevsim297 eni297np1: renamed from eth0
[  547.444830] netdevsim netdevsim523 eni523np1: renamed from eth1
[  547.832327] Could not find device with ifindex 2000 in netnsfd 11
[  547.832486] Could not find netns with fd: 2000
[  547.832590] Cannot link a netdevsim to itself
[  547.832679] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).