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]

## Contents

* 1 Implementation
* 1.1 Inter-domain Controller protocol
* 2 See also
* 3 References
* 4 External links

## 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. ↑ 3.0 3.1 Internet2 DCN Working Group (2009-02-03). "Internet2 DCN Pilot Service Definition". 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. ↑ "A User Driven Dynamic Circuit Network Implementation". ESNET. 2008. http://www.es.net/pub/esnet-doc/DANMS08_1569141354_Guok_et-al.pdf.
6. ↑ "Inter-domain Controller (IDC) Protocol Specification" (PDF). 2008-05-30. Archived from the original on 2010-06-10. https://web.archive.org/web/20100610100511/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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