[ 1027.784692][T12575] netdevsim netdevsim721 eni721np1: renamed from eth1
[ 1027.882114][T12577] netdevsim netdevsim409 eni409np1: renamed from eth0
[ 1029.837036][T12569] Could not find device with ifindex 2000 in netnsfd 11
[ 1029.838306][T12569] Could not find netns with fd: 2000
[ 1029.839028][T12569] Cannot link a netdevsim to itself
[ 1029.839853][T12569] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).