[ 1243.893015][T12618] netdevsim netdevsim533 eni533np1: renamed from eth1
[ 1243.897425][T12616] netdevsim netdevsim370 eni370np1: renamed from eth0
[ 1246.632125][T12604] Could not find device with ifindex 2000 in netnsfd 11
[ 1246.633598][T12604] Could not find netns with fd: 2000
[ 1246.634836][T12604] Cannot link a netdevsim to itself
[ 1246.647893][T12604] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).