Dynamic circuit network
A dynamic circuit network (DCN) is an advanced computer networking technology that combines traditional packet-switched communication based on the Internet Protocol, as used in the Internet, with circuit-switched technologies that are characteristic of traditional telephone network systems. This combination allows user-initiated ad hoc dedicated allocation of network bandwidth for high-demand, real-time applications and network services, delivered over an optical fiber infrastructure.{{cite web|url=http://www.technologyreview.com/Infotech/20277/page1/?a=f|title=Bandwidth on Demand|author=Erica Naone|date=2008-02-14|publisher=MIT Technology Review|archiveurl=https://web.archive.org/web/20110608080842/https://www.technologyreview.com/Infotech/20277/page1/?a=f|archivedate=2011-06-08}}
Implementation
Dynamic circuit networks were pioneered by the Internet2 advanced networking consortium.{{cite web|url=http://www.internet2.edu/network/dc/|title=Dynamic Circuit Network|publisher=Internet2|access-date=2009-08-20|archive-date=2010-02-24|archive-url=https://web.archive.org/web/20100224043539/http://www.internet2.edu/network/dc/|url-status=dead}} The experimental Internet2 HOPI infrastructure, decommissioned in 2007, was a forerunner to the current SONET-based Ciena Network underlying the Internet2 DCN. The Internet2 DCN began operation in late 2007 as part of the larger Internet2 network.{{cite web
|url=https://spaces.internet2.edu/download/attachments/12931/Internet2+DCN+Pilot+Service+Definition+v0.4.pdf
|title=Internet2 DCN Pilot Service Definition
|author=Internet2 DCN Working Group
|date=2009-02-03}} It provides advanced networking capabilities and resources to the scientific and research communities, such as the Large Hadron Collider (LHC) project.{{cite web|url=http://www.internetevolution.com/author.asp?section_id=562&doc_id=180322|title=Dynamic Circuit Network Debuts for Researchers|author=Mary E. Shacklett|publisher=Internet Evolution|date=2009-08-11|accessdate=2009-08-19}}
The Internet2 DCN is based on open-source, standards-based software, the Inter-domain Controller (IDC) protocol, developed in cooperation with ESnet{{cite web |title=A User Driven Dynamic Circuit Network Implementation |url=http://www.es.net/pub/esnet-doc/DANMS08_1569141354_Guok_et-al.pdf |author1=C.P. Guok |author2=D.W. Robinson |author3=E. Chaniotakis |author4=M.R. Thompson |author5=W. Johnston |author6=B. Tierney |date=2008 |publisher=ESNET |access-date=2009-08-20 |archive-url=https://web.archive.org/web/20100618103114/http://www.es.net/pub/esnet-doc/DANMS08_1569141354_Guok_et-al.pdf |archive-date=2010-06-18 |url-status=dead }} and GÉANT2. The entire software set is known as the Dynamic Circuit Network Software Suite (DCN SS).
=Inter-domain Controller protocol=
The Inter-domain Controller protocol manages the dynamic provisioning of network resources participating in a dynamic circuit network across multiple administrative domain boundaries.{{cite web |url=https://wiki.internet2.edu/confluence/download/attachments/19074/IDC-Messaging-draft.pdf?version=1 |format=PDF |title=Inter-domain Controller (IDC) Protocol Specification |date=2008-05-30 |author1=A. Lake |author2=J. Vollbrecht |author3=A. Brown |author4=J. Zurawski |author5=D. Robertson |author6=M. Thompson |author7=C. Guok |author8=E. Chaniotakis |author9=T. Lehman |url-status=dead |archiveurl=https://web.archive.org/web/20100610100511/https://wiki.internet2.edu/confluence/download/attachments/19074/IDC-Messaging-draft.pdf?version=1 |archivedate=2010-06-10 }} It is a SOAP-based XML messaging protocol, secured by Web Services Security (v1.1) using the XML Digital Signature standard. It is transported over HTTP Secure (HTTPS) connections.
See also
References
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External links
- [http://www.internet2.edu/ Internet2 Website]
- [https://wiki.internet2.edu/confluence/display/DCNSS/Home Dynamic Circuit Network Suite]
Category:Computer networks engineering