[  492.448805] netdevsim netdevsim560 eni560np1: renamed from eth1
[  492.544396] netdevsim netdevsim491 eni491np1: renamed from eth0
[  492.776109] Could not find device with ifindex 2000 in netnsfd 11
[  492.776408] Could not find netns with fd: 2000
[  492.776480] Cannot link a netdevsim to itself
[  492.776578] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).