[ 1023.088425][T12573] netdevsim netdevsim331 eni331np1: renamed from eth0
[ 1023.196515][T12574] netdevsim netdevsim537 eni537np1: renamed from eth1
[ 1025.032757][T12565] Could not find device with ifindex 2000 in netnsfd 11
[ 1025.033947][T12565] Could not find netns with fd: 2000
[ 1025.034627][T12565] Cannot link a netdevsim to itself
[ 1025.035374][T12565] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).