QoS policy
You need to become familiar with the following terms to
understand QoS policies:
- Quality of Service (QoS)
- The overall service that a user or application receives from a network, in terms of throughput, delay, and such
- Service Differentiation
- The ability of a network to provide different QoS levels to different users or applications based on their needs.
- Service Level Agreement (SLA)
- A contract, in business terms, provided by a network service provider that details the QoS that users or applications are expected to receive.
- Service Policy
- Administrative controls for a network, which are needed to achieve the QoS promised by a given SLA.
- Integrated Services
- A type of service that provides end-to-end QoS to an application, using the methodology of resource reservation along the data path from a receiver to a sender.
- Differentiated Services
- A type of service that provides QoS to broad classes of traffic or users, for example, all FTP traffic to a given subnet.
- Resource ReSerVation Protocol (RSVP)
- A protocol that provides for resource reservation in support of Integrated Services.