[ 1030.312445][T12071] netdevsim netdevsim504 eni504np1: renamed from eth0
[ 1030.418749][T12066] netdevsim netdevsim742 eni742np1: renamed from eth1
[ 1032.320771][T12556] Could not find device with ifindex 2000 in netnsfd 11
[ 1032.321850][T12556] Could not find netns with fd: 2000
[ 1032.322576][T12556] Cannot link a netdevsim to itself
[ 1032.323427][T12556] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).