Using QoS to classify and prioritize network traffic

Quality of Service is used to classify and prioritize traffic throughout a network. QoS enables you to establish an end-to-end traffic-priority policy to improve the control and throughput of important data. You can manage available bandwidth so that the most important traffic goes first. For example, you can use Quality of Service to:
  • Upgrade or downgrade traffic from various servers.

  • Control the priority of traffic from dedicated VLANs or applications.

  • Change the priorities of traffic from various segments of your network as your business needs change.

  • Set priority policies in edge switches in your network to enable traffic-handling rules across the network.
    802.1p priority based on CoS (Class-of-Service) types and use of VLAN tags
    Application of Differentiated Services Codepoint (DSCP) policies