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RMD - an NSIS QoS Signaling Model for Diffserv IETF – 60, San Diego

RMD - an NSIS QoS Signaling Model for Diffserv IETF – 60, San Diego. A. B á der, L. Westberg, G. Karagiannis, C. Kappler, T. Phelan. Diffserv QoS signaling models. General Diffserv QoS model for NSIS is difficult to describe, many different models are possible Intserv over Diffserv

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RMD - an NSIS QoS Signaling Model for Diffserv IETF – 60, San Diego

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  1. RMD - an NSIS QoS Signaling Model for DiffservIETF – 60, San Diego A. Báder, L. Westberg, G. Karagiannis, C. Kappler, T. Phelan

  2. Diffserv QoS signaling models • General Diffserv QoS model for NSIS is difficult to describe, many different models are possible • Intserv over Diffserv • Bandwidth Broker (off-path signaling, currently out of scope) • MBAC • Probing • … • RMD is an example of Diffserv QSMs that utilizes specific NSLP and NTLP functionalities for lightweight operation

  3. Characteristics of RMD QSM • Uses QoS-NSLP stateless/reduced state operation • NTLP datagram mode within the domain, connection mode inter-domain • Edge-to-edge signaling within a Diffserv domain but can be extended to multi-domain using an end-to-end QSM • Dynamic resource reservation, feedback about resource availability within a domain • Can be adapted to route change: severe congestion handling (using QSM specific control information) • Load sharing • Minimum functionalities in interior nodes • Aggregation per PHB

  4. Status of the draft • After the Romsey interim meeting we started describing RMD as an example of NSIS Diffserv QSM. • 00 version focuses on the main concept • Details currently in the old RMD draft, will be moved to the new draft step-by-step in line with QSM drafts • IPR statement was issued • Proposal: The RMD QSM draft become a WG document (informational RFC later)

  5. Questions, comments?

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