As I remember seeing the question on how Network throttling works in CS, so I’ve created a wiki page explaining the CS implementation. Feel free to review/update/fix:
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Network+throttling+in+CloudStack Anthony/Kelven/Edison/Rajesh, can you please update the “How throttling is set on Hypervisor level” section for Xen/VmWare/KVM/HyperV hypervisors accordingly? As I don’t have enough expertise on this part. -Alena.