Journal of KIISE:Information Networking (한국정보과학회논문지:정보통신)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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SIP QoS Support in Broadband Access Networks

광대역 접속망에서 SIP QoS 지원 방안

  • 박승철 (한국기술교육대학교 인터넷미디어공학부)
  • Published : 2007.02.15
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Abstract

This paper presents an approach to support dynamic QoS(Quality of Service) requirements of largely emerging SIP(Session Initiation Protocol) multimedia applications in broadband access networks. The topology of QoS-enabled broadband access networks and its operational model to support SIP QoS are firstly suggested. And then the procedures to bind QoS-enabled SIP signaling into an IP QoS mechanism are presented. In this paper, DiffServ-based IP QoS architecture is deployed due to the complexity problem of the other IntServ architecture, and COPS(Common Open Policy Service) and COPS-PR protocol based signaling mechanisms are used to support dynamic DiffServ QoS, correspondent with dynamic SIP QoS. The broadband access network is assumed to support rapidly expanding Metro Ethernet 802.1 D/Q QoS, and how to translate SIP QoS parameters into IP DiffServ classes and DiffServ classes into 802.1 D/Q QoS parameters is also presented in this paper.

본 논문은 인터넷 멀티미디어 응용을 위한 유력한 세션 제어 프로토콜인 SIP(Session Initiation Protocol)의 동적인 QoS(Quality of Service) 요구 사항을 광대역 접속망(Broadband Access Network)에서 지원하는 방안에 대해 논한다. 먼저 SIP QoS를 지원하기 위한 광대역 접속망의 구조와 동작 모델을 제시하고, 동적 QoS를 지원하는 SIP 시그널링을 IP QoS 메카니즘으로 변환하는 과정을 제시한다. IntServ 구조의 복잡성 문제를 고려하여 본 논문은 DiffServ 기반의 IP QoS 구조를 채택하고, 동적 SIP QoS에 대응되는 동적 DiffServ 지원을 위해 COPS(Common Open Policy Service)와 COPS-PR 프로토콜 기반의 시그널링 메카니즘을 제안한다. 또한 본 논문은 현재 급속히 확산되고 있는 메트로 이더넷(Metro Ethernet) 기반의 802.1 D/Q QoS를 지원하는 광대역 접속망을 가정하고, SIP QoS 매개변수를 DiffServ의 트래픽 등급으로 변환하는 방안, 그리고 DiffServ의 트래픽 등급을 802.1 D/Q 메트로 이더넷에서 지원하는 방안을 제시한다.

Keywords

References

  1. J. Rosenberg et al., 'SIP : Session Initiation Protocol,' IETF RFC 3261, June 2002
  2. J. Rosenberg, H. Schulzrinne,' An Offer/Answer Model with Session Description Protocol(SDP),' IETF RFC 3264, June 2002
  3. R. Braden, D. Clark, and S. Shenker, 'Integrated Services in the Internet Architecture: An Overview,' IETF RFC 1633, June 1994
  4. S. Blake et al., 'An Architecture for Differentiated Services,' IETF RFC 2475, Dec. 1998
  5. 박승철, 'DSL 광대역 접속망에서 DiffServ QoS 지원방안', 정보처리학회논문지 제13-C권 제5호, 2006년 10월 https://doi.org/10.3745/KIPSTC.2006.13C.5.613
  6. DSL-Forum TR-059, 'DSL Evolution - Architecture Requirements for the Support of QoS-Enabled IP Services,' Sep. 2003
  7. S. Salsano, L. Veltri, 'QoS Control by Means of COPS to Support SIP-Based Applications,' IEEE Network, March/April 2002
  8. D. Durham, et al., 'The COPS(Common Open Policy Service} Protocol,' RFC 2748, Jan. 2000
  9. K. Chan, et al., 'COPS Usage for Policy Provisioning(COPS-PR),' RFC 3084, March 2001
  10. S. Ooghe, et. al., 'Impact of the Evolution of the Metropolitan Network on the DSL Access Architecture,' IEEE Communications Magazine, Feb. 2003
  11. L. Zier, W. Fisher, and F. Brockners, 'Ethernet-Based Public Communication Services: Challenge and Opportunity,' IEEE Communications Magazine, March 2004
  12. V. Fineberg, 'A Practical Architecture for Implementing End-to-End QoS in an Ip Network,' IEEE Communications Magazine, Jan. 2002
  13. DSL-Forum TR-094, 'Multi-Service Delivery Framework for Home Networks,' Aug. 2004
  14. C. Bouchat, S. Bosch, and T. Pollet, 'QoS in DSL Access,' IEEE Communications Magazine, Sep. 2003
  15. M. Handley, V. Jacobson, 'SDP : Session Description,' IETF RFC 2327, April 1998
  16. S. Sargento et al., 'IP-Based Access Networks for Broadband Multimedia Services,' IEEE Communications Magazine, Feb. 2003
  17. G. Gamarillo, W. Marshall, J. Rosenberg, 'Integration of Resource Management and SIP,' IETF RFC 3312, Oct. 2002
  18. M. Ali, G. Chiruvolu, and A. Ge, 'Traffic Engineering in Metro Ethernet,' IEEE Network, March/April 2005