[ 1022.964609][T12475] netdevsim netdevsim398 eni398np1: renamed from eth0
[ 1023.066610][T12472] netdevsim netdevsim615 eni615np1: renamed from eth1
[ 1024.874307][T12467] Could not find device with ifindex 2000 in netnsfd 11
[ 1024.875453][T12467] Could not find netns with fd: 2000
[ 1024.876121][T12467] Cannot link a netdevsim to itself
[ 1024.876850][T12467] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).