Forskningsnettet - The Danish Research Network

DeICs service "forskningsnettet" the Danish research network is the high speed network connecting Danish universities and research institutions since 1987. Today about 100 institutions is connected to the network. In 2008 Forskningsnettet was upgraded and now has its own optical fibres. This meand higher speed and more stability for the users. 

Forskningsnettet has its own fiber infrastructure with 1 Gbps and 10 Gbps Ethernet connections. With these connections Forskningsnettet supplies researchers, students and lectures with optimum connections for transmissions of large data amounts as well as global cooperations. 

DeICs Network Operations Center (NOC) is situated at the local operator at Danish Technical University in Lyngby, This is also where the central node for the trafic is situated. A similar node is situated in Ørestad. This ensures continuous availability if the Forskningsnet connection in Lyngby should fail. 

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From both Lyngby and Ørestad there are 10 Gbps connections to the universities in Odense, Århus and Aalborg. Other institutions scattered around Denmark is connected through the universities or through their own 1 Gbps connections. The numerous institutions in the Copenhagen area is connected to both Ørestad and Lyngby through a web of network connections. 

The international connections from Denmark is routed via NORDUnet and GÉANT from both Lyngby and Ørestad.

Click on the pictures below to see the infrastructure of Forskningsnettet:

(Pictures text in Danish)

The national backbone
The main vein within forskningsnettet is the connections between the large institutions, the Core-routers Ly0 and Or0, which also connects the danish research network with the rest of the world. The institutions connected to the Core-routers have to have a clean routed connection - this beeing no VLANs – and they have to communicate BGP (Border Gateway Protocol) with Forskningsnettet. In this way a safe and simple lay out and thereby run time is secured. 

Most connections to the Core-routers are supplied by the optical ring (the lambda network) in forskningsnettet, giving extra protection against disconnections. 

North Seeland - fiber link
I the capital area lightpaths transmitting gigabit-Ethernet or 10 gigabit-Ethernet is mostly used. Due to short distances it is possible to use both CWDM and DWDM, which brings down the costs. The illustration shows the extension of CWDM and DWDM.
Northe Seeland - routed connections
On top of the fiber infrastructure in the capital area is a routed infrastructure, providing the smaller institutions acces to redundante connections to Forskningsnettet and thereby to the Internet. These connections is typically based on 1Gbit/s and offers IPv4 and IPv6 to the institutions. 


Aarhus network
Ar1 and Ar2 is connected to the national backbone ring and connects University of Aarhus and the institutions behind to the rest of Forskningsnettet. Some institutions, not integrated in the university network is connected to the net through connections to one or several of the secundary routers in Aarhus. 

At the moment the Aarhus network is in a transitions fase from the above described to a new konfiguration, where each institution will connect direct to the optical network. In the transition phase Ar1 and Ar2 have been phased out, and instead University of Aarhus, Ar3 and Ar5 is connected directly to Or0 and Ly0.