Editing Quality of service (section)

==End-to-end quality of service==
End-to-end quality of service can require a method of coordinating resource allocation between one [[autonomous system (Internet)|autonomous system]] and another. The [[Internet Engineering Task Force]] (IETF) defined the [[Resource Reservation Protocol]] (RSVP) for bandwidth reservation as a proposed standard in 1997.<ref>{{cite IETF|title=Resource ReSerVation Protocol (RSVP) |rfc=2205 |author=[[Bob Braden]] ed. L. Zhang, S. Berson, S. Herzog, S. Jamin |date=September 1997 |publisher=[[IETF]]}}</ref> RSVP is an end-to-end bandwidth reservation and [[admission control]] protocol. RSVP was not widely adopted due to scalability limitations.<ref>{{citation |title=Performance evaluation of RSVP using OPNET Modeler |journal=Simulation Modelling Practice and Theory |volume=49 |date=December 2014 |pages=85–97|doi=10.1016/j.simpat.2014.08.005 |last1=Pana |first1=Flavius |last2=Put |first2=Ferdi }}</ref> The more scalable traffic engineering version, [[RSVP-TE]], is used in many networks to establish traffic-engineered [[Multiprotocol Label Switching]] (MPLS) label-switched paths.<ref>{{citation |title=MPLS Segment Routing |date=10 December 2019 |url=https://www.arista.com/en/solutions/mpls-segment-routing#Comparing-Segment-Routing-to-RSVP-TE |access-date=2020-04-16 |publisher=Arista}}</ref> The IETF also defined [[Next Steps in Signaling]] (NSIS)<ref>{{cite web| url = http://datatracker.ietf.org/wg/nsis/charter/| title = "Next Steps in Signaling" Charter}}</ref> with QoS signalling as a target. NSIS is a development and simplification of RSVP.

Research consortia such as "end-to-end quality of service support over heterogeneous networks" (EuQoS, from 2004 through 2007)<ref>{{cite web |title= EuQoS - End-to-end Quality of Service support over heterogeneous networks |work= Project website |date= 2004–2006 |url= http://www.euqos.eu/ |url-status= dead |archive-date= April 30, 2007 |archive-url= https://web.archive.org/web/20070430123408/http://www.euqos.eu/ |access-date= October 12, 2011 }}</ref> and fora such as the [[IPsphere Forum]]<ref>[http://www.tmforum.org/ipsphere/ IPSphere: Enabling Advanced Service Delivery] {{webarchive |url=https://web.archive.org/web/20110113060748/http://www.tmforum.org/ipsphere/ |date=January 13, 2011 }}</ref> developed more mechanisms for handshaking QoS invocation from one domain to the next. IPsphere defined the [[Service Structuring Stratum]] (SSS) signaling bus in order to establish, invoke and (attempt to) assure network services. EuQoS conducted experiments to integrate [[Session Initiation Protocol]], [[Next Steps in Signaling]] and IPsphere's SSS with an estimated cost of about 15.6 million Euro and published a book.<ref>{{cite web |title= End-to-end quality of service support over heterogeneous networks |work= Project description |publisher= European Community Research and Development Information Service |url= http://cordis.europa.eu/search/index.cfm?fuseaction=proj.document&PJ_LANG=EN&PJ_RCN=6903468 |access-date=October 12, 2011 }}</ref><ref>{{cite book |author1=Torsten Braun |author2=Thomas Staub |title=End-to-end quality of service over heterogeneous networks |url=https://books.google.com/books?id=ajnpzZOOVUgC&pg=PA161 |year=2008 |publisher= Springer |isbn=978-3-540-79119-5}}</ref>

A research project Multi Service Access Everywhere (MUSE) defined another QoS concept in a first phase from January 2004 through February 2006, and a second phase from January 2006 through 2007.<ref>{{cite web |title= Multi Service Access Everywhere (MUSE) |work= Project website |url= http://www.ist-muse.org/ |access-date= October 12, 2011 }}</ref><ref>{{cite web |title= Multi Service Access Everywhere |work= Project description |publisher= European Community Research and Development Information Service |url= http://cordis.europa.eu/search/index.cfm?fuseaction=proj.document&PJ_LANG=EN&PJ_RCN=12052357 |access-date=October 12, 2011 }}</ref><ref>{{cite web |title= Multi Service Access Everywhere |work= Project description |publisher= European Community Research and Development Information Service |url= http://cordis.europa.eu/search/index.cfm?fuseaction=proj.document&PJ_LANG=EN&PJ_RCN=9151777 |access-date=October 12, 2011 }}</ref> Another research project named PlaNetS was proposed for European funding circa 2005.<ref>{{cite web |title= PlaNetS QoS Solution |work= Project website |url= http://www.medea-planets.eu/QoSsolution.php |url-status= dead |archive-url= https://web.archive.org/web/20091112202614/http://www.medea-planets.eu/QoSsolution.php |archive-date= November 12, 2009 |access-date= October 12, 2011 |date= 2017-07-28 }}</ref><!-- not in Cordis, so not funded? -->
A broader European project called "Architecture and design for the future Internet" known as 4WARD had a budget estimated at 23.4 million Euro and was funded from January 2008 through June 2010.<ref>{{cite web |title= 4WARD: Architecture and design for the future Internet |work= Project description |publisher= European Community Research and Development Information Service |url= http://cordis.europa.eu/fetch?CALLER=PROJ_ICT&ACTION=D&CAT=PROJ&RCN=85316 |access-date=October 15, 2011 }}</ref>
It included a "Quality of Service Theme" and published a book.<ref>{{cite web |title= Going 4WARD |work= Project newsletter |date= June 2010 |url= http://www.4ward-project.eu/index.php?s=file_download&id=90 |format= PDF |access-date= October 15, 2011 |archive-date= May 9, 2013 |archive-url= https://web.archive.org/web/20130509122312/http://www.4ward-project.eu/index.php?s=file_download&id=90 |url-status= dead }}</ref><ref>{{cite book |author1= Luís M. Correia |author2= Joao Schwarz (FRW) da Silva |title= Architecture and Design for the Future Internet: 4WARD EU Project |url=https://books.google.com/books?id=DbucHQnOMW8C| date=January 30, 2011 |publisher= Springer |isbn= 978-90-481-9345-5 }}</ref> Another European project, called WIDENS (Wireless Deployable Network System),<ref>{{cite web |title=Wireless Deployable Network System |work=Project description |publisher=European Union |url=http://www.netlab.tkk.fi/tutkimus/WIDENS|access-date=May 23, 2012}}</ref> proposed a bandwidth reservation approach for mobile wireless multirate adhoc networks.<ref>{{cite journal |title=Quality of Service through Bandwidth Reservation on Multirate Ad-doc Wireless Networks |author1=R. Guimaraes |author2=L. Cerdà |author3=J. M. Barcelo-Ordinas |author4=J. Garcia-Vidal |author5=M. Voorhaen |author6=C. Blondia |date=March 2009 |journal=Ad Hoc Networks |pages=388–400|doi=10.1016/j.adhoc.2008.04.002 |volume=7 |issue=2}}</ref>