Search results for "DiffServ"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
135	Seungchul Park	Migration toward DiffServ-Enabled Broadband Access Networks.	ICOIN	2007	DBLP DOI BibTeX RDF
89	Yin Wang, Raimo Kantola, Shuping Liu	Adding Multi-Class Routing into the DiffServ Architecture.	Systems Communications	2005	DBLP DOI BibTeX RDF
89	Ulrich Fiedler, Polly Huang, Bernhard Plattner	Towards Provisioning Diffserv Intra-Nets.	IWQoS	2001	DBLP DOI BibTeX RDF
82	Dam Q. Hai, Son T. Vuong	Dynamic-Distributed Differentiated Service for Multimedia Applications.	DSN	2000	DBLP DOI BibTeX RDF
78	Emmanuel Lochin, Pascal Anelli	TCP throughput guarantee in the DiffServ Assured Forwarding service: what about the results?	Ann. des Télécommunications	2009	DBLP DOI BibTeX RDF	End to end guarantee, Assured forwarding, QoS, TCP, DiffServ
78	Weizhao Wang, Xiang-Yang Li 0001, Zheng Sun	Design DiffServ Multicast with Selfish Agents.	AAIM	2005	DBLP DOI BibTeX RDF	approximation algorithms, multicast, DiffServ, algorithm mechanism design, selfish agents
71	Edgard Jamhour, Mauro Fonseca, André Beller, Thiago Pereira	DiffServ Management on Mobile IP Networks using COPS-PR.	Net-Con	2005	DBLP DOI BibTeX RDF
71	Chin-Ling Chen	DiffServ Operational Model.	LCN	2002	DBLP DOI BibTeX RDF
69	Salvador Alcaraz, Katja Gilly, Carlos Juiz, Ramón Puigjaner	Handling HTTP flows over a DiffServ framework.	LANC	2007	DBLP DOI BibTeX RDF	short and long flows, QoS, DiffServ, web traffic, token bucket
69	Wei-Chu Lai, Kuo-Ching Wu, Ting-Chao Hou	Design and Evaluation of Diffserv Functionalities in the MPLS Edge Router Architecture.	AAA-IDEA	2005	DBLP DOI BibTeX RDF	QoS, MPLS, Network Processor, DiffServ
69	Mohamed El Hachimi, Abdelhafid Abouaissa, Pascal Lorenz, M. O. Lee	Scalable Multicast Provisioning in DiffServ with MPLS Labeling.	Telecommun. Syst.	2004	DBLP DOI BibTeX RDF	mutlicast, label aggregation, QoS, scalability, MPLS, DiffServ
69	Steven Martin 0001, Pascale Minet, Laurent George 0001	Deterministic End-to-End Guarantees for Real-Time Applications in a DiffServ-MPLS Domain.	SERA	2003	DBLP DOI BibTeX RDF	EF class, QoS, admission control, MPLS, DiffServ, real-time constraints, deterministic guarantee, worst case end-to-end response time
69	Elionildo da Silva Menezes, Djamel Fawzi Hadj Sadok, Judith Kelner	A Policy Management Framework Using Traffic Engineering in DiffServ Networks.	QoS-IP	2001	DBLP DOI BibTeX RDF	Network Management Policies, Quality of Service, DiffServ, Service Level Management
64	Haining Wang, Kang G. Shin	Layer-4 Service Differentiation and Resource Isolation.	IEEE Real Time Technology and Applications Symposium	2002	DBLP DOI BibTeX RDF
64	Jitae Shin, JongWon Kim 0001, C.-C. Jay Kuo	Quality-of-service mapping mechanism for packet video in differentiated services network.	IEEE Trans. Multim.	2001	DBLP DOI BibTeX RDF
64	Roland Bless, Klaus Wehrle	Group Communication in Differentiated Services Networks.	CCGRID	2001	DBLP DOI BibTeX RDF
64	Jae-Young Kim 0001, James Won-Ki Hong, Sook-Hyun Ryu, Taesang Choi	Constructing End-to-End Traffic Flows for Managing Differentiated Services Networks.	DSOM	2000	DBLP DOI BibTeX RDF
62	Jinoo Joung, Jongtae Song, Soon Seok Lee	Delay Bounds in Tree Networks with DiffServ Architecture.	ITC	2007	DBLP DOI BibTeX RDF
62	Daniel A. Vivanco, Anura P. Jayasumana	Bandwidth Brokering and Dynamic Resource Allocation in DiffServ Domains for Heterogeneous Applications.	LCN	2002	DBLP DOI BibTeX RDF
62	Maarten Büchli, Danny De Vleeschauwer, Jan Janssen, Annelies Van Moffaert, Guido H. Petit	Resource allocation and management in DiffServ networks for IP telephony.	NOSSDAV	2001	DBLP DOI BibTeX RDF
62	Eric Horlait, Nicolas Rouhana	Differentiated Services and Integrated Services Use of MPLS.	ISCC	2000	DBLP DOI BibTeX RDF	QoS, traffic engineering, MPLS, Diffserv, Intserv, constraint-based routing
60	Karol Molnar, Vít Vrba	DiffServ-Based User-Manageable Quality of Service Control System.	ICN	2008	DBLP DOI BibTeX RDF	QoS, DiffServ, OPNET
60	Seung-Hun Yoon, Djakhongir Siradjev, Young-Tak Kim	Management of DiffServ-over-MPLS Transit Networks with BFD/OAM in ForCES Architecture.	DSOM	2006	DBLP DOI BibTeX RDF	DiffServ-over-MPLS, BFD, OAM, QoS, Network Processor, ForCES
60	Djakhongir Siradjev, Ivan Gurin, Young-Tak Kim	Scalable DiffServ-over-MPLS Traffic Engineering with Per-flow Traffic Policing.	APNOMS	2006	DBLP DOI BibTeX RDF	DiffServ-over-MPLS, QoS, scalability, network processors
60	Zhi Li 0002, Prasant Mohapatra	QoS-aware multicasting in DiffServ domains.	Comput. Commun. Rev.	2004	DBLP DOI BibTeX RDF	QMD, QoS-aware multicast routing, multicasting, differentiated services (DiffServ)
60	Marcial Porto Fernandez, Aloysio De Castro Pinto Pedroza, José Ferreira de Rezende	Dynamic QoS Provisioning in DiffServ Domains Using Fuzzy Logic Controllers.	Telecommun. Syst.	2004	DBLP DOI BibTeX RDF	quality of service, DiffServ, network provisioning
60	Gino Carrozzo, V. Chionsini, Stefano Giordano, Saverio Niccolini	QoS Evaluation of Real-Time Applications over a Multi-domain DiffServ Experimental Test-Bed.	NETWORKING	2002	DBLP DOI BibTeX RDF	Experimental test-bed, DiffServ, Real-Time traffic, Multi-Domain
55	Angelos Michalas, Malamati D. Louta, Vassilis Loumos, Dimitrios Zisopoulos, Georgia Charitoudi	QoS Differentiation Provisioning & Management System Exploiting Mobile Agent Technology.	LCN	2006	DBLP DOI BibTeX RDF
55	Young-Tak Kim	DoumiMan for guaranteed QoS provisioning in next generation Internet.	NOMS (1)	2004	DBLP DOI BibTeX RDF
55	Si-Ho Cha, Jae-Oh Lee, Dong-Ho Lee, Kuk-Hyun Cho	A Policy-Based QoS Management Framework for Differentiated Services Networks.	ICOIN	2003	DBLP DOI BibTeX RDF
55	Fulu Li, Nabil Seddigh, Biswajit Nandy, Diego Matute	An Empirical Study of Today's Internet Traffic for Differentiated Services IP QoS.	ISCC	2000	DBLP DOI BibTeX RDF	Type of Service, Type of Application, Quality of Service, Differentiated Services, Internet Traffic
53	Nikos Zotos, Georgios Xilouris, Evangelos Pallis, Anastasios Kourtis	An MPLS-DiffServ experimental core network infrastructure for E2E QoS content delivery.	AICCSA	2008	DBLP DOI BibTeX RDF
53	Norashidah Md Din, Norsheila Fisal	Fuzzy Logic Token Bucket Bandwidth Predictor for Assured Forwarding Traffic in a DiffServ-Aware MPLS Internet.	Asia International Conference on Modelling and Simulation	2007	DBLP DOI BibTeX RDF
53	Jinoo Joung	Feasibility of Supporting Real-Time Traffic in DiffServ Architecture.	WWIC	2007	DBLP DOI BibTeX RDF
53	Seungchul Park	Indirect DiffServ QoS for SIP in Broadband Access Networks.	KES-AMSTA	2007	DBLP DOI BibTeX RDF
53	Brunilde Sansò, Christian Awad, André Girard	Can DiffServ guarantee IP QoS under failures?	IEEE Netw.	2006	DBLP DOI BibTeX RDF
53	Jian Zhang, Maxweel Carmo, Marília Curado, Jorge Sá Silva, Fernando Boavida	Scalable Quantitative Delay Guarantee Support in DiffServ Networks Through NSIS.	Networking	2006	DBLP DOI BibTeX RDF
53	Alexander Sayenko, Olli Alanen, Olli Karppinen, Timo Hämäläinen 0002	Analysis and Simulation of the Signaling Protocols for the DiffServ Framework.	NEW2AN	2006	DBLP DOI BibTeX RDF
53	António Pereira 0001, Edmundo Monteiro	Bandwidth Management in IntServ to DiffServ Mapping.	QoS-IP	2005	DBLP DOI BibTeX RDF
53	Ha Trung Phan, Doan B. Hoang	FICC-DiffServ: A New QoS Architecture Supporting Resources Discovery, Admission and Congestion Controls.	ICITA (2)	2005	DBLP DOI BibTeX RDF
53	Woojin Park, Kyu-Ho Han, Sinam Woo, Sunshin An	Marking Mechanism for Enhanced End-to-End QoS Guarantees in Multiple DiffServ Environment.	ICCSA (1)	2005	DBLP DOI BibTeX RDF
53	Aaron Striegel, Abdelmadjid Bouabdallah, Hatem Bettahar, G. Manimaran	EBM: A New Approach for Scalable DiffServ Multicasting.	Networked Group Communication	2003	DBLP DOI BibTeX RDF
53	António Pereira 0001, Edmundo Monteiro	Dynamic Mapping between the Controlled-Load IntServ Service and the Assured Forward DiffServ PHB.	HSNMC	2003	DBLP DOI BibTeX RDF
53	Nadjib Achir, Nazim Agoulmine, Mauro Fonseca, Yacine Ghamri-Doudane, Guy Pujolle	Active Technology as an Efficient Approach to Control DiffServ Networks: The DACA Architecture.	MMNS	2002	DBLP DOI BibTeX RDF
53	Rares Serban, Chadi Barakat, Walid Dabbous	Dynamic Resource Allocation in Core Routers of a Diffserv Network.	ASIAN	2002	DBLP DOI BibTeX RDF
53	Baoxian Zhang, Hussein T. Mouftah	End-to-End QoS Guarantees Over Diffserv Networks.	ISCC	2001	DBLP DOI BibTeX RDF
53	Seong-Ho Jeong, Myung Choi, Randal T. Abler, Henry L. Owen, John A. Copeland, Joachim Sokol	QoS Support for Real-Time Applications Using the Integration of RSVP/Intserv and Diffserv: A Testbed Experiment.	NETWORKING	2000	DBLP DOI BibTeX RDF
53	Dharm Singh Jat, Chih-Heng Ke, M. K. Jain, Ruey-Shin Chen	Throughput Performance of an IP Differentiated-Services Network for Video Communication.	PCM	2008	DBLP DOI BibTeX RDF	srTCM, trTCM, QoS, MPLS, DiffServ, MPEG4, IntServ
53	Hamada Alshaer, Eric Horlait	Expedited Forwarding End to End Delay Jitter in the Differentiated Services Networks.	HSNMC	2004	DBLP DOI BibTeX RDF	Expedited forwarding, e2e jitter, Playout buffers, DiffServ
53	Tamrat Bayle, Reiji Aibara, Kouji Nishimura	Providing Enhanced Differentiated Services for Real-Time Traffic in the Internet.	MMNS	2003	DBLP DOI BibTeX RDF	Internet QoS, VoIP, Scheduling Algorithm, DiffServ
51	Luís Fernando Orleans, Geraldo Zimbrão, Pedro Furtado 0001	Controlling the Behaviour of Database Servers with 2PAC and DiffServ.	DEXA	2008	DBLP DOI BibTeX RDF	2PAC, QoS, Admission Control, DiffServ
51	Kleber Kendy Horikawa Nabas, Walter Godoy Jr., Emílio C. G. Wille	A Simulation Study of the WFQ Scheduler in a DiffServ Node under LRD Traffic.	ICN	2008	DBLP DOI BibTeX RDF	TCP/IP, MPLS, DiffServ, WFQ, LRD
51	Christos Bouras, Dimitris Primpas, Kostas Stamos	Enhancing ns-2 with DiffServ QoS features.	SpringSim (1)	2007	DBLP BibTeX RDF	quality of service, DiffServ, ns-2, bandwidth brokers
51	Emmanuel Lochin, Laurent Dairaine, Guillaume Jourjon	gTFRC, a TCP friendly QoS-aware rate control for DiffServ Assured Service.	Telecommun. Syst.	2006	DBLP DOI BibTeX RDF	Assured forwarding, Congestion control, DiffServ, Transport
51	Jin-Yu Zhang, Liu Li, Hong-Hui Li, Liu Feng	Quantitative QoS Management Implement Mechanism in IP-DiffServ.	J. Comput. Sci. Technol.	2005	DBLP DOI BibTeX RDF	IP-DiffServ, quantitative QoS management, traffic engineering, network plan
51	Wu-Hsiao Hsu, Cheng-Lin Yang, Li-Yuan Wu, Chiun-Sheng Hsu	An Integrated Anycast End-to-End QoS Routing on DiffServ Networks.	ISCC	2005	DBLP DOI BibTeX RDF	SRM, QoS, DiffServ, anycast, residual
51	Kehang Wu, Douglas S. Reeves	Capacity Planning of DiffServ Networks with Best-Effort and Expedited Forwarding Traffic.	Telecommun. Syst.	2004	DBLP DOI BibTeX RDF	DiffServ, Lagrangian relaxation, capacity planning
51	Susana Sargento, Roger Salgado, Miguel Carmo, Victor Marques 0001, Rui Valadas, Edward W. Knightly	An Experimental Study of Probing-Based Admission Control for DiffServ Architectures.	NETWORKING	2002	DBLP DOI BibTeX RDF	QoS, Call Admission Control, DiffServ, Test-bed
51	K. R. Renjish Kumar, Akkihebbal L. Ananda, Lillykutty Jacob	Using Edge-to-Edge Feedback Control to Make Assured Service More Assured in DiffServ Networks.	LCN	2001	DBLP DOI BibTeX RDF	Congestion feedback, Traffic conditioner, DiffServ networks, QoS, TCP friendliness, Assured services
51	Maria E. Markaki, Iakovos S. Venieris	A Novel Buffer Management Scheme for CBQ-Based IP Routers in a Combined IntServ and DiffServ Architecture.	ISCC	2000	DBLP DOI BibTeX RDF	QoS, Internet, buffer management, DiffServ, IntServ
51	Jarmo Harju, Perttu Kivimäki	Co-operation and Comparison of DiffServ and IntServ: Performance Measurements.	LCN	2000	DBLP DOI BibTeX RDF	QoS based handling, flow aggregation model, reservation based model, quality of service, Internet, Internet, architectures, performance measurements, Differentiated Services, DiffServ, data flows, comparison, IP networks, Integrated Services, IntServ, co-operation
46	Weizhao Wang, Xiang-Yang Li 0001, Zheng Sun	Design differentiated service multicast with selfish agents.	IEEE J. Sel. Areas Commun.	2006	DBLP DOI BibTeX RDF
46	Thiago Pereira, André Beller, Edgard Jamhour, Mauro Fonseca	QoS Management on Mobile IP Networks using COPS-PR.	NOMS	2006	DBLP DOI BibTeX RDF
46	Nicola Blefari-Melazzi, Mauro Femminella	A Comparison of the Utilization Efficiency between a Stateful and a Stateless Admission Control in IP Networks in a Heterogeneous Traffic Case.	Telecommun. Syst.	2004	DBLP DOI BibTeX RDF	IP QoS, utilization efficiency, performance evaluation, Differentiated Services, heterogeneous traffic
46	Hossam S. Hassanein, Jian Zhao	Supporting service differentiation through end-to-end QoS routing.	ISCC	2004	DBLP DOI BibTeX RDF
46	Mohammad Hossien Yaghmaee, Seyed Mostafa Safavi	A new FLC based model for Differentiated Services.	ISCC	2002	DBLP DOI BibTeX RDF
44	Rafal Stankiewicz, Andrzej Jajszczyk	Modular Model Based Performance Evaluation of a DiffServ Network Supporting Assured Forwarding PHB.	ICC	2008	DBLP DOI BibTeX RDF
44	Asma A. Elmangosh, Majdi A. Ashibani, Fathi B. Shatwan	The Interworking between EDCA 802.11e and DiffServ.	IPCCC	2007	DBLP DOI BibTeX RDF
44	Ricardo Nabhen, Edgard Jamhour, Manoel Camillo Penna, Mauro Fonseca, Guy Pujolle	DiffServ PBAC Design with Optimization Method.	IPOM	2007	DBLP DOI BibTeX RDF
44	Dongli Zhang, Dan Ionescu	QoS Performance Analysis in Deployment of DiffServ Aware MPLS Traffic Engineering.	SNPD (3)	2007	DBLP DOI BibTeX RDF
44	Ing-Chau Chang, Shi-Feng Chen	An End-to-End QoS Adaptation Architecture for the Integrated IntServ and DiffServ Networks.	EUC Workshops	2007	DBLP DOI BibTeX RDF
44	Ricardo Nabhen, Edgard Jamhour, Manoel Camillo Penna, Mauro Fonseca, Guy Pujolle	Optimal DiffServ AC Design using Non-Linear Programming.	LCN	2007	DBLP DOI BibTeX RDF
44	Kyungkoo Jun, Seokhoon Kang, Byoungjo Choi	DiffServ-Aware MPLS Scheme to Support Policy-Based End-to-End QoS Provision in Beyond 3G Networks.	HPCC	2006	DBLP DOI BibTeX RDF
44	Sanjeewa Athuraliya, Harsha R. Sirisena	Excess bandwidth distribution in DiffServ networks.	IPCCC	2006	DBLP DOI BibTeX RDF
44	Suogang Li, Jianping Wu, Ke Xu 0002, Ying Liu 0024	A modularized QoS multicasting approach on common homogeneous trees for heterogeneous members in DiffServ.	IPCCC	2006	DBLP DOI BibTeX RDF
44	Yong Jiang 0001	DSMRouter: A DiffServ-Based Multicast Router.	APNOMS	2006	DBLP DOI BibTeX RDF
44	Mounir Frikha, Tibi Najet, Faiza Tabbana	Mapping DiffServ to MAC differentiation for IEEE 802.11e.	AICT/ICIW	2006	DBLP DOI BibTeX RDF
44	Clarence Filsfils, John Evans	Deploying Diffserv in Backbone Networks for Tight SLA Control.	IEEE Internet Comput.	2005	DBLP DOI BibTeX RDF
44	Mario Barbera, Alfio Lombardo, Giovanni Schembra, Andrea Trecarichi	An Analytical Framework to Design a DiffServ Network Supporting EF-, AF- and BE-PHBs.	QoS-IP	2005	DBLP DOI BibTeX RDF
44	Attila Báder, Georgios Karagiannis, Lars Westberg, Cornelia Kappler, Tom Phelan, Hannes Tschofenig, Geert J. Heijenk	QoS Signaling Across Heterogeneous Wired/Wireless Networks: Resource Management in Diffserv Using the NSIS Protocol Suite.	QSHINE	2005	DBLP DOI BibTeX RDF
44	André Beller, Edgard Jamhour, Manoel Camillo Penna	Dynamic DiffServ Configuration Using COPS-PR.	LCN	2005	DBLP DOI BibTeX RDF
44	Si-Ho Cha, Jong-Eon Lee, WoongChul Choi, Jae-Oh Lee, Kuk-Hyun Cho	Policy-Based Differentiated QoS Provisioning for DiffServ Enabled IP Networks.	ICOIN	2004	DBLP DOI BibTeX RDF
44	Bingyi Zhang, Yamin Sun	Cooperation of RSVP, DiffServ for frequent and fast Intersubnet Handoff.	ISPAN	2004	DBLP DOI BibTeX RDF
44	Laurent Fazio, Fethi Filali	Enhancing the Coexistence of Unicast and Multicast Sessions in Diffserv Architecture.	MIPS	2003	DBLP DOI BibTeX RDF
44	Aaron Striegel, G. Manimaran	Edge-Based Fault Detection in a DiffServ Network.	DSN	2002	DBLP DOI BibTeX RDF	Multicasting, Fault detection, Differentiated Services, Link state routing
44	András Császár, Attila Takács, Róbert Szabó, Vlora Rexhepi, Georgios Karagiannis	Severe Congestion Handling with Resource Management in Diffserv on Demand.	NETWORKING	2002	DBLP DOI BibTeX RDF
44	Ibrahima Niang, Frédérique Jacquet, Dominique Seret	Mechanism for multi-domain marking in DiffServ architecture.	ISCC	2002	DBLP DOI BibTeX RDF
44	Yoko Noda, Tatsuhiko Sakai, Hiroshi Shigeno, Ken-ichi Okada, Yutaka Matsushita	A Survey of Transport Layer Protocols Suited for Real-Time Data Delivery over Diffserv-Capable Networks.	ICDCS Workshops	2002	DBLP DOI BibTeX RDF
44	Appan Ponnappan, Lingjia Yang, R. Radhakrishna Pillai, Peter Braun	A Policy Based QoS Management System for the IntServ/DiffServ Based Internet.	POLICY	2002	DBLP DOI BibTeX RDF
44	Ashish Mehra, Dinesh C. Verma, Renu Tewari	Policy-Based Diffserv on Internet Servers: The AIX Approach (On the Wire).	IEEE Internet Comput.	2000	DBLP DOI BibTeX RDF
44	Indu Mahadevan, Krishna M. Sivalingam	Quality of Service Architectures for Wireless Networks: IntServ and DiffServ Models.	ISPAN	1999	DBLP DOI BibTeX RDF	Quality of Service, Mobile, Wireless, Differentiated services, Integrated services
44	Yuming Jiang 0001	Per-domain packet scale rate guarantee for expedited forwarding.	IEEE/ACM Trans. Netw.	2006	DBLP DOI BibTeX RDF	expedited forwarding (EF), packet scale rate guarantee (PSRG), per-domain behavior, per-hop behavior (PHB), differentiated services (DiffServ)
44	Sergio Herrería-Alonso, Manuel Fernández-Veiga, Andrés Suárez-González, Miguel Rodríguez-Pérez, Cándido López-García	Fair Assured Services Without Any Special Support at the Core.	Networking	2006	DBLP DOI BibTeX RDF	congestion control, DiffServ, assured services, aggregated traffic
44	Brian Carrig, David Denieffe, John Murphy 0001	A relative delay minimization scheme for multiplayer gaming in differentiated services networks.	NETGAMES	2006	DBLP DOI BibTeX RDF	relative delay, QoS, diffserv, network games
44	Scott C. Evans, Marc R. Pearlman, Asavari Rothe, Martin Egan, Manny Leiva	Route Based QoS and the Biased Early Drop Algorithm (BED).	QSHINE	2005	DBLP DOI BibTeX RDF	Quality of Service, Mobile Ad Hoc Networks, DiffServ
44	Eeva Nyberg, Samuli Aalto	Differentiation and Interaction of Traffic: A Flow Level Study.	Art-QoS	2003	DBLP DOI BibTeX RDF	flow level, TCP, DiffServ, proportional differentiation
44	Eeva Nyberg, Samuli Aalto	How to Achieve Fair Differentiation.	NETWORKING	2002	DBLP DOI BibTeX RDF	TCP, fairness, DiffServ, TCP friendliness
42	Haci A. Mantar	A scalable QoS routing model for diffserv over MPLS networks.	Telecommun. Syst.	2007	DBLP DOI BibTeX RDF	Quantitative QoS, Traffic engineering, MPLS, DiffServ, QoS routing
42	Wu-Hsiao Hsu, Sheng-Cheng Yeh, Li-Yuan Wu, Kuang-En Hsieh	A bandwidth-constrained anycast routing for mobile IP in a DiffServ backbone network.	IWCMC	2006	DBLP DOI BibTeX RDF	E-ER, mobile IP, DiffServ, anycast, route optimization
42	John Evans, Clarence Filsfils	Deploying Diffserv at the Network Edge for Tight SLAs, Part 1.	IEEE Internet Comput.	2004	DBLP DOI BibTeX RDF	SLA, service-level agreements, Diffserv