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.^[1]

Implementation

Dynamic circuit networks were pioneered by the Internet2 advanced networking consortium.^[2] 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.^[3] It provides advanced networking capabilities and resources to the scientific and research communities, such as the Large Hadron Collider (LHC) project.^[4]

The Internet2 DCN is based on open-source, standards-based software, the Inter-domain Controller (IDC) protocol, developed in cooperation with ESnet^[5] and GÉANT2.^[3] 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.^[6] 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

• Internet Protocol Suite
• IPv6
• Fiber-optic communication

References

1. ^ Erica Naone (2008-02-14). "Bandwidth on Demand". MIT Technology Review. http://www.technologyreview.com/Infotech/20277/page1/?a=f. 
2. ^ "Dynamic Circuit Network". Internet2. http://www.internet2.edu/network/dc/. 
3. ^ ^{a b} Internet2 DCN Working Group (2009-02-03). "Internet2 DCN Pilot Service Definition" (PDF). https://spaces.internet2.edu/download/attachments/12931/Internet2+DCN+Pilot+Service+Definition+v0.4.pdf. 
4. ^ Mary E. Shacklett (2009-08-11). "Dynamic Circuit Network Debuts for Researchers". Internet Evolution. http://www.internetevolution.com/author.asp?section_id=562&doc_id=180322. Retrieved 2009-08-19. 
5. ^ C.P. Guok, D.W. Robinson, E. Chaniotakis, M.R. Thompson, W. Johnston, B. Tierney (2008). "A User Driven Dynamic Circuit Network Implementation" (PDF). ESNET. http://www.es.net/pub/esnet-doc/DANMS08_1569141354_Guok_et-al.pdf. 
6. ^ A. Lake, J. Vollbrecht, A. Brown, J. Zurawski, D. Robertson, M. Thompson, C. Guok, E. Chaniotakis, T. Lehman (2008-05-30). "Inter-domain Controller (IDC) Protocol Specification" (PDF). https://wiki.internet2.edu/confluence/download/attachments/19074/IDC-Messaging-draft.pdf?version=1. 

External links

• Internet2 Website
• Dynamic Circuit Network Suite

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