QoS within Nile Service Block

objectives enhance user experience deliver high quality user experience by prioritizing voice, video, and critical business applications simplify qos requirements promote architectural simplicity through a zero configuration model enable wireless qos utilize 802 11e wmm and edca to ensure efficient wireless qos preserve qos across networks maintain end to end qos standards across the nile service block (nsb) network capabilities outline support for multiple priorities and classes traffic can be classified into four priority categories network control and voice video and business premium/critical background best effort / low priority these categories are mapped to wmm 802 11e access classes and aligned with conventional switch/router service tiers (for example, platinum, gold, silver, bronze) dscp based classification and re marking supports classification and re marking of dscp values based on deep packet inspection (dpi) trusted applications such as wi fi calling, zoom, webex, and teams adhere to dscp trust principles if incoming traffic is marked with lower dscp values than dpi provided thresholds, re marking is applied in both upstream and downstream directions traffic processor and classifier implements traffic buffering mechanisms supports multiple priority levels and class based weighted fair queuing (cbwfq) allocates queue weights dynamically on a profile basis dpi and application prioritization the nile service block (nsb) integrates a deep packet inspection (dpi) engine to identify and prioritize latency sensitive applications traffic identification dpi inspects packet headers and payloads to classify traffic into protocol families such as family audio video applications including zoom, webex, and teams family authentication family microsoft office additional well known protocol groups dynamic re marking dpi assigns dscp values to traffic based on protocol family and criticality if traffic enters the nsb with lower dscp markings, it is re marked according to dpi guidance examples include voice traffic dscp 48, priority weight 30% video traffic dscp 34, priority weight 10% best effort / background traffic lower priority dscp values application awareness ensures real time and business critical applications, such as voice calls and video conferencing, consistently receive priority handling across the network wi fi calling wi fi calling differs from other voice protocols because it uses an ipsec based connection to send voice traffic from a mobile device to the carrier’s evolved packet data gateway (epdg) note the epdg is a core network component that connects wi fi networks to mobile networks, enabling voice over wi fi (vowifi) services such as phone and video calls over wi fi nile maintains a predefined set of known epdgs for global carriers to correctly identify wi fi calling flows and assign the appropriate voice priority when traffic traverses the nsb nile also collaborates with customers in different regions to add carrier specific epdgs as needed guest traffic all guest traffic is forwarded through the nile service block as best effort