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Diameter Quality of Service Application draft-ietf-dime-diameter-qos-00.txt

This draft outlines the Diameter QoS application, focusing on authorization for QoS-enhanced application flows, interactions between application servers and endpoints, QoS requests handling, and network element functions.

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Diameter Quality of Service Application draft-ietf-dime-diameter-qos-00.txt

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  1. Diameter Quality of Service Applicationdraft-ietf-dime-diameter-qos-00.txt Avri Doria Pete McCann Hannes Tschofenig Tina Tsou Glen Zorn

  2. Terms • Application Server • Exchanges signaling messages with an Application Endpoint • May be source of authorization for QoS-enhanced application flows • Example: SIP server • Application Endpoint • Exchanges signaling messages with Application Servers or other Application Endpoints • Makes QoS requests • Example: SIP User Agent

  3. Terms (2) • Authorizing Entity • Responsible for authorizing QoS requests • Diameter Server • AAA Cloud • AAA infrastructure • Network Element • QoS-aware router • Diameter client

  4. Framework QoS application runs between • Network Element • Receives QoS reservation requests • Diameter QoS client • Authorizing Entity • Diameter QoS server • Exchanges may be routed through AAA Cloud

  5. Network Element Functions • Admission Control • Resource availability • Authorization • Diameter Client • Resource Reservation • Traffic Control • Classifier • Scheduler • Resource Management • Accounting

  6. QoS Authorization Requirements • Inter-domain support • Roaming • Identity-based Routing • AAA requests • Flexible Authentication Support • Flexible Authorization Support • Periodic re-authorization • Event-triggered authorization • Both “push” & “pull”

  7. QoS Authorization Requirements (2) • Flexible Accounting Support • Failure Reporting • Bearer Gating

  8. Diameter QoS Application Commands • QoS-Authz-Request (QAR) • QoS-Authz-Answer (QAA) • QoS-Install-Request (QIR) • QoS-Install-Answer (QIA)

  9. Diameter QoS Application AVPs • QoS-Flow-State • Type Enumerated • QSPEC • Type OctetString • ExtendedQoSFilterRule • Type OctetString • Should be Grouped? • QoS-Authz-Data • Type Grouped • QoS-Resources • Type Grouped • Bound-Auth-Session-Id • Type UTF8String • NASREQ session ID • Should be more flexible?

  10. Discussion?

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