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Student projects


Self-organizing Monitoring for MPLS-based Networks

Kind of work:
Diploma Thesis
Dipl.-Ing. René Böringer
Stefan Leistritz
MultiProtocol Label Switching (MPLS)- based networks obtaining more and more acceptability and distribution in provider- and backbone networks. Nevertheless, concepts for monitoring MPLS-based networks efficiently are still missing. In this diploma thesis a concept for self-organizing monitoring for MPLS-based networks is developed. At first some possibilities of designing monitoring more efficiently by using MPLS-specific information are shown. Therefore it is shown how to maximize the advantage of a single monitor by using information out of existing signaling messages (RSVP-TE). Based on this knowledge a novel concept of monitoring the whole network
with only a couple of monitors is proposed. Afterwards different positioning algorithms are studied. This helps for reducing the number of necessary monitors to a minimum. The concept of positioning of monitors at runtime should requires for new network management technologies.
By means of these approaches the monitoring system can adapt itself to different situations in the network. The behavior
and opportunities of these positioning algorithms are simulated in Matlab and by means of various MPLS-based networks reference networks. At last the extensibility of this concept and some possibilities for transferring the gained results to other technologies are shown. This work shows that only 10% of the networks nodes have to be monitors. It is sufficient that each of these monitors observe only 10 randomly chosen LSPs to monitor the whole network completly.