Topologies and Networks

Descriptions of network topologies form a basic component of network engineering. They are necessary when designing the network, but also to have an accurate overview of the current network, to support administration, debugging and other activities.

For circuit-based networks topology descriptions are even more important. Because of the circuit-based nature, some knowledge of the topology must be known to do pathfinding through the inter-domain network. It may not be necessary to distribute the complete topology, but some information must be shared to do inter-domain pathfinding.

Detail of the GLIF global optical network.

This part of the group focuses on the modelling and representation of computer networks, and their attached resources, how to best represent them, how to extend these models to other fields, et cetera. We research the representation of logical layers in the network and how to model adaptations between the different networks. Furthermore we look into at the interaction and performance tradeoffs between network descriptions and pathfinding algorithms.

An important part of our activities is participation in standards groups, in particular the OGF Network Markup Language-WG and the Network Service Interface WG.

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