What is HQoS and how is it different from QoS?

Carrier Ethernet networks today are migrating from being uni-service network (i.e., best effort) to being a multi-service network (prioritized). In order to run a multi-service network the carrier needs a mechanism that allows him to enforce QoS (Quality of Service) policies per user per service. HQoS (Hierarchical Quality of Service) allows the carrier to make sure each service gets the network resources it needs while coexisting on the same network infrastructure with other types of services. An additional value of HQoS is the ability to share unused network resources between different…

Read More