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Network and Systems Services (IT-NSS) is responsible for campus-wide networks and physical maintenance of campus data networking.
UD IT monitors use of the campus IP network and continually upgrades the network to stay ahead of network demand. Currently, UD’s campus network includes two new redundant core network sites with diversely routed 10 Gbps connections terminated on Juniper MX series Tbps-capable routers. New physically distributed 10 Gbps routers are being installed and integrated into the new core.
UD is currently upgrading the distribution and access layers of the network to provide greater network access speed. Most offices, labs, classrooms, and residences on the main campus are linked to legacy network switches at 100 Mbps and 1 Gbps. IT is in the process of upgrading the network speed so that 1 Gbps would be the slowest connection to UD’s network. Several research servers are already linked to new 10 Gbps switches and the new 10 Gbps core.
Wide Area Network
The University’s wide-area network infrastructure consists of a 200 kilometer fiber ring connecting UD’s Newark campus to a regional telecom facility in Philadelphia. In Philadelphia, UD connects with multiple commodity Internet providers and the MAGPI research network, which provides regional connectivity to Internet2. All network traffic from UD with Internet2-connected endpoints is automatically routed through the Internet2 routers.
The ring is diversely routed single-mode fiber on a 20-year Indefeasible Right of Use (IRU) agreement jointly owned by UD and the State of Delaware. The ring also services the State of Delaware, Delaware State University, and Delaware Technical Community College.
The fiber ring is “lit” with a Tellabs 7100 Nano DWDM (Dense Wave Division Multiplexing) system currently offering four 10 Gbps networks to be multiplexed onto the the existing fiber ring. The Tellabs system is upgradeable to 88 wavelengths at 10 Gbps and 40 Gbps. Our Wide Area Network (WAN) is currently provisioned with three major components:
- A 10 Gbps fully protected ring for the University of Delaware’s production commodity Internet and Internet2 traffic;
- A 10 Gbps dedicated link for Internet2’s ION dynamic research network. ION (Interoperable On-demand Network) will allow users to reserve point-to-point virtual circuits with the bandwidth capacity needed for a particular application; and
- Multiple Delaware Department of Technology and Information (DTI) networks.
The University of Delaware can pick up network connections at points on the ring at 1 Gbps or 10 Gbps and terminate on Juniper MX series border routers. Connections to UD’s remote campuses (e.g., Lewes) and research-related organizations (e.g., A.I. duPont Institute and Hospital) use Verizon’s Switched Ethernet Service (SES, formerly TLS). SES is a metropolitan area network technology delivered to UD’s main computing center over a gigE link. Currently, these sites use 10 Mbps, 100 Mbps, and 1 Gbps SES connections back to the main campus. (For example, the network from the Newark Campus to the Lewes Campus is a 1 Gbps SES connection.)
As part of our Internet2 and EPSCoR missions, UD also provides Internet2 access to researchers at Delaware State University to complement a wide range of EPSCoR-funded, joint research projects.