The University of Arizona

I2, CalREN, NLR Service

Internet 2

Internet2 is a consortium led by over two hundred universities working in partnership with industry and government to develop and deploy advanced network applications and technologies, accelerating the creation of tomorrow's Internet. Internet2 is recreating the partnership among academia, industry and government that fostered today’s Internet in its infancy.

The University of Arizona is one of several universities which participated in the formation of the University Corporation for Advanced Internet Development (UCAID), which oversees and coordinates the Internet 2 project to create a new, super-fast, national computer network for education. The mission of the Internet 2 Project is to "facilitate and coordinate the development, deployment, operation and technology transfer of advanced, network-based applications and network services to further U.S. leadership in research and higher education and accelerate the availability of new services and applications on the Internet."

Primary Goals

  • Create a leading edge network capability for the national research community
  • Enable revolutionary Internet applications
  • Ensure the rapid transfer of new network services and applications to the broader Internet community


CENIC stands for the Corporation for Education Network Initiatives in California, a consortium-based organization that manages CalREN. CalREN, the California Research and Education Network, is a high-bandwidth, high-capacity Internet network specially designed to meet the unique requirements of these communities, and to which the vast majority of California's K-20 educational institutions are connected. In order to facilitate collaboration in education and research, CENIC also provides connectivity to non-California institutions and industry research organizations with which CENIC's Associate researchers and educators are engaged. The University of Arizona's access to Internet-2 and the National Lambda Rail (NLR) is via CENIC.

The primary driver for becoming a member was to gain access to The National Lambda Rail (NLR), a national network geared toward providing high-speed capabilities to research oriented institutions and organizations. CENIC was the "founding" network to NLR and all members of CENIC have access to both NLR and Internet2. The University of Arizona’s interest is to utilize this valuable resource for our research community as well.

Network access to Internet-2 sites via CENIC is determined automatically. Network traffic destined to Internet-2 sites will prefer the Internet-2 path through CENIC; this service is automatically provisioned where appropriate for all users. No configuration, registration, or other action is required. CENIC also provides the University of Arizona with IPv6 connectivity; all IPv6 traffic leaving the University does so via CENIC.

Overall, our membership allows us to join NLR & combine Internet2 at a more economical level, strengthen our collaborations with our sister schools in California, and build up our connectivity between Tucson and Phoenix.

Any network traffic originating in IP address space assigned to the University of Arizona will use the CENIC path when it is appropriate.