Internet of Things for Architects

Traffic shaping and QoS

Traffic shaping and quality of services (QoS) features are useful in deployments that need a guaranteed level of service when dealing with congestion or variable network loads. For example, in an IoT use case, when mixing live video streams as well as public Wi-Fi, the video feeds may need priority and a guaranteed level of quality, especially in a situation of public safety or surveillance. Left to itself, incoming data from the WAN to an edge router will be serviced on a first-come-first-serve basis:

• QoS functions: Allow the administrator to assign levels of priority for a given IP address hosted by the router or a specific port. QoS functions only control the uplink channel. They are particularly useful in cases ...