Mittwoch, 02. April 2014, 15:00 - 16:00 iCal

CS-Colloquium: Dr. Andreas Mauthe

Content centricity as central paradigm in computer networking

Fakultät für Informatik / HS3
Währinger Straße 29, 1090 Wien


The optimisation of content delivery over the Internet has been a research interest for some time and has resulted in Content Delivery Network (CDN) research. This initial work focused on how content can be actively placed closer to the actual user in order to reduce access times and latency. While this research has resulted in successful products and services (e.g., AKAMAI) it only deals with one aspect of content delivery; others such as addressing, host mobility, resilience, etc. are not covered. Hence the concept of Content Networks (CN) has extended CDN research in order to also comprise such other aspects.

One central element of this research is the recognition that users are ultimately interested in the content (or a piece of information) and not any specific copy. This resulted in research on content addressing that allows general content access, i.e., the goal is retrieving content (or information) rather than routing of packets between end hosts. This is called Content-Centric respectively Information-Centric Networking (CCN/ICN). A further aspect is the actual delivery of content where at present, once a delivery is requested, it will be executed using one specific delivery channel and his the Quality of Experience (QoE) can be assured.

In this presentation we are looking at the background and motivation of Content Networking. Subsequently the concepts of CCN/ICN are looked at more closely including CCN/ICN addressing, but also more controversial topics such as the advantages and disadvantages of CCN caching. Further, how the concept of Quality of Experience (QoE) can be integrated within content networks is being looked at. Then JUNO is presented as an example of a content-centric middleware that allows to incrementally introduce content-centric principles into a networked system. The presentation concludes with a look ahead on further research challenges in Content Networking.

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Fakultät für Informatik


Werner Schröttner
Fakultät für Informatik