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An MPLS Connection Manager for an Edge Router
KTH, Superseded Departments, Teleinformatics. (CCSlab)
1998 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The Internet has been growing rapidly over the last couple of years. The increasing demand for network bandwidth is becoming a huge problem. To solve this problem, new methods must be developed. Ericsson’s solution is the use of MultiProtocol Label Switching (MPLS). MPLS has the potential to have a major impact on IP networking. It has the simplicity and dynamic nature of an IP network, but retains the performance of an ATM network. Furthermore, from an administrator’s point of view, MPLS will drastically simplify network management.

The key principle behind MPLS is to be able to forward by switching packets through a network instead of routing packets. In order to do this, paths are established at the data link layer throughout the MPLS network. A fixed length identifier known as “label” identifies each path. Then the packets are simply forwarded on the path using layer two switching, instead of performing layer three routing.

By using MPLS, performance is increased and it provides a good basis for traffic engineering, Quality of Service (QoS) guarantees, and Virtual Private Networks (VPN).

I have implemented an MPLS ATM driver for an Ericsson AXI 510 Edge Router. The driver is responsible for converting generic MPLS labels into standard ATM labels (VPI/VCI). The driver also modifies the forwarding process in the router so that ATM paths are used to forward the packets, instead of the conventional forwarding methods. This implementation has been partly tested and it complies with MPLS current Internet drafts so far.

Place, publisher, year, edition, pages
1998. , 61 p.
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-95463OAI: diva2:528492
Subject / course
Educational program
Master of Science in Engineering - Electrical Engineering
1998-11-06, Seminar room "Telegrafen", Isafjordsgatan 22, Kista, 16:00 (English)
Available from: 2012-06-15 Created: 2012-05-25 Last updated: 2013-09-09Bibliographically approved

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