Project Number: RES2009/0007
Project Manager CTIT: Prof. dr. ir. Aiko Pras
Faculty of Electrical Engineering, Mathematics and Computer Science - EEMCS
Carrier Ethernet provides the possibility of a new set of services for SURFnet with both point-to-point as well as multipoint-to-multipoint connectivity in addition to multiple ser-vice classes. Since the introduction of Next Generation Ethernet will broaden the SURFnet service portfolio, the current network monitoring infrastructure will definitely not suffice. Analysis and recommendations are needed as to how the current network monitoring ar-chitecture and capabilities should evolve and be extended to meet the demands of Next Generation Ethernet service monitoring and reporting.
Typical aspects which need to be considered are:
• Interaction and integration with the current network monitoring system;
• Ethernet OAM, which will be carried out end-to-end (IEEE 802.1ag) and
associated service performance management ITU-T Y.1731;
• Troubleshooting with failures, performance issues etc.
This research will be performed in close co-operation with the other activity for NGE (ser-vice provisioning) carried out by the University of Amsterdam (KdVI), which focuses on the new services for SURFnet and guidelines for their provisioning (such that perform-ance targets are met most of the time). At the same time monitoring of these services is needed (on relatively short time scale) to report back to the customer on the Service Level Specification (SLS).
Interesting statistical issues play a role when deploying techniques such as OAM: how can the information obtained be used to validate the SLS, or, in other words, how can it be made sure that the performance estimates are sufficiently statistically sig-nificant?
Also in failure and overload detection one has to come up with statistically sound algo-rithms that assess whether the fluctuations seen are within or outside the margins of the system's "normal behavior".
The research is expected to closely collaborate with the NGE project within SURFnet, which is expected to provide feedback on the (monitoring) capabilities of the Carrier Ethernet equipment which will be deployed in SURFnet7. Since most Carrier Ethernet equipment is expected to comply to monitoring standards IEEE 802.1ag and ITU-T Y.1731, the research will assume that this functionality is available and provide recommendations on how to best troubleshoot with failures and performance issues. The study will also investigate possible new monitoring standards and techniques applicable for NGE.
Project duration: 2010-2015
Project budget: 300 k-€
Number of person/years: 0.5 fte /year
Involved groups: Design and Analysis of Communication Systems (DACS)
CTIT Centre: Centre for Safety and Security in Smart Societies (C.S4)