ULg AIM MPLS and the New Internet Architecture
Advanced Tutorial
June 21 and 22, 2000 - Brussels (Belgium)
André Danthine
Université de Liège

* Introduction

Today nobody can question the success of IP and the world wide service of Internet. Its traffic is following a geometrical growth not likely to slowdown in a foreseeable future. But this success has created ist own set of problems.
The increase in traffic with a parallel increase in nominal rate of the physical links raised a problem for the classical architecture of an IP network. The classical routers were unable to support the extension of the routing tables and the increase in IP headers to be processed per second and they evolved to a "switch" whose interest were made obvious by the ATM. It is an integration of the routing functions of IP and the switching functions of ATM that constituted the genesis of the "label switching".
The search for performance is not the only element linked to the IP architecture evolution. Its success and its ubiquity oblige the Internet to consider not only the elastic applications but the complete set of potential applications including the streaming and the real-time ones that have requirements of QoS not easily provided today. RSVP, IntServ and DiffServ are the response of the IETF to this need but it is fair to recognise that in the initial phase ATM played an essential role as core technology for the Internet Service Providers (ISP). But an architecture must be, as much as possible, independent of the technologies. MPLS through the concept of LSP (Label Switch Path) allows the introduction of virtual connections in the network layer with the labelling applicable to one application flow or to a traffic aggregate requiring the same processing. MPLS is able to use layer 2 technologies such as ATM with or without SDH, SDH without ATM, CWDM or DWDM without ATM and SDH and maybe, sooner that expected, lambda switching. Coming back to the network layer of the architecture MPLS is able to correct the limitations of routing protocols such as OSPD or IS-IS for the traffic engineering and the QoS by allowing load balancing, explicit routing and constraint routing. By providing a global framework for routing hierarchy, MPLS creates a unified architecture for the Internet.
This evolution of the Internet with MPLS and its consequences will be the subject of this tutorial aimed at those concerned by the trends in the deployment of new services in a renewed network architecture. This tutorial assumes a basic knowledge in IP and the network layer as well as in the data link layer with or without ATM.

* Table of Contents

  1. The Legacy
    • The Internet Evolution
    • IP and ATM in the ISP Networks
    • Classical Routing of IP Packets
    • Towards New Services

  2. The Genesis
    • The Cell Switch Router (CSR) of Toshiba
    • The Label Switching
    • IP Switching of Ipsilon
    • Tag Switching of Cisco
    • ARIS from IBM

  3. MPLS -MultiProtocol Label Switching
    • MPLS Goals
    • General Concepts
    • Label Creation and Distribution
    • Various Implementation Supports
    • MPLS and the Path Aggregation
    • MPLS and the Explicit Routing
    • Standardisation Status

  4. MPLS and the Traffic Engineering
    • Internet Traffic Engineering Principles
    • Traffic Engineering as a Control Process
    • Internet Traffic Engineering with ATM
    • MPLS and the Internet Traffic Engineering
      • LSP Management
      • Traffic Assignment
      • Network State Dissemination
      • Standardisation Status

  5. MPLS and the Virtual Private Networks
    • From Private Networks to Virtual Private Networks
    • BGP4
    • VPN Construction with MPLS

  6. MPLS and the Quality of Service
    • IntServ and DiffServ
    • DiffServ and the Network Services
    • DiffServ and MPLS
    • SLA in a MPLS/DiffServ Network
    • Policy Based Management

* Lecturer

Andre DANTHINE, Professor at the University of Liège since 1967, created a Research Unit in Networking (RUN) in 1972.

In 1983, Professor Danthine launched the ESPRIT I Project 73 aimed at the development of a high speed network for the interconnection of heterogeneous LANs on a broad site. This Project concluded, in 1989, with the installation, on the Sart Tilman Campus of the University of Liège, of the BWN (Backbone Wideband Network) prototype (more than 18 km of optical fibre with a data rate of 140 Mbps). In 1990, Professor Danthine launched a new Esprit project, OSI95, to tackle the design of a new transport service and protocol (TPX) for multimedia applications in a high speed environment including B-ISDN. In 1991, he joined the RACE Project CIO. It is within the framework of this project that the ATM LAN of RUN has been connnected, at 34 Mbps, to the European ATM Pilot for functional and performance evaluations. Between 1994 and 1996, Professor Danthine was also involved in another RACE project, ACCOPI. November 1995 marked the beginning of OKAPI, an ACTS project.

Since its creation in 1992, Professor Danthine has been the chairman of the COST action 237 on "Multimedia Telecommunication Services".

He is often invited to present his vision of the evolution of the network architectures and of the information systems.

His tutorials on the hot topics of the network field are appreciated not only for the quality of the content but also for the provided insight.

Professor Danthine is a member of ACM, of IEEE, of the Editorial Board of "ETT", of the Editorial Advisory Board of the Wiley Series in "Communication and Distributed Systems"; he is the editor of several books and proceedings and the author of more than a hundred papers. Chairman of the TC6 of IFIP from 1979 to 1985, he has been Governor of ICCC since 1982. CRB Fellow in 1960, he received the Melchior Salier Prize in 1961, the "Bell Telephone-100th Anniversary" prize in 1983 and the IFIP Silver Core in 1986. In 1993-1994, he was Francqui Professor at the VUB. He is Doctor of Science Honoris Causa of the University of Kent (1991), and of the University Paul Sabatier in Toulouse (1996). Since October 1997, he has been Professor Emeritus at the University of Liège.

* Tutorial Information

o Dates - Timeschedule

Wednesday 21 and Thursday 22 June 2000 from 9.00 to 17.30.

o Venue

Hotel Carrefour de l'Europe ,
Grasmarkt 110 rue du Marché-aux-Herbes
B-1000 Bruxelles Tel.: + 32 (0)2 504 94 00 Fax: + 32 (0)2 504 95 00

o Welcome desk

The welcome desk will be open from 8:30.

o Official Language

The official language of the Tutorial is English.

o Registration Fee

-Registration and
payment received
before 07 June 2000
Registration and
payment received
after 07 June 2000
Normal fee 650 EUR (26221 BEF)750 EUR (30255 BEF)
Reduced fee420 EUR (16943 BEF)550 EUR (22187 BEF)

The fee includes: the tutorial notes, the lunches and the refreshments during the break.

The reduced fee is granted to:
  • A.I.M. members
  • University personnel
  • Students.

o Payment

Payment has to be made in advance of the tutorial. The fee can be paid
  • by bank transfer to Fortis Bank account n°240-0435648-25 of A.I.M.
  • by credit card (Eurocard/Mastercard, VISA, AMEX)
  • by eurocheck made payable to A.I.M.

o Registration form

The enclosed registration form must be returned as soon as possible to the Administrative Office. Registration is only effective when payment is received. It is advisable to register early as attendance will be limited by the room capacity.
You can register now with the on-line Registration form.

o Confirmation

The participant will be mailed a confirmation upon the receipt of the registration form and the payment. This confirmation will have to be presented at the Welcome Desk to receive the relevant tutorial documents such as the name badge and the tutorial notes.

* Practical Information

o How to reach Brussels ?

By air: Brussels National Airport is linked to the Central Railway Station (Gare Centrale) by a special train service 'Airport City Express' (3 shuttle trains per hour). The travel to the Central Railway Station (Gare Centrale) lasts about 20 minutes.

By train: Brussels is easily accessible by Thalys or other international trains. Participants have to stop at Central Railway Station (Gare Centrale). Thalys stops in Midi Railway Station only and people have to take a shuttle train to the Central Railway Station.

By road: Brussels is directly linked to the European Motorway Network via the Northern and Southern Ring.

o Refreshments and Lunches

Refreshments will be served in the morning and in the afternoon during the 30 min. breaks (at 10.30 and 15.30).
Lunch will be served from 12.30 to 14.00.

o Accommodation

Hotel Carrefour de l'Europe ****

The hotel Carrefour de l'Europe is situated in the historical heart of Brussels and in the immediate vicinity of the Central Railway Station. The 'Parking Grand'Place' is situated under the hotel Carrefour de l'Europe (price per day : 480 BEF).
Rooms can be booked by the Administrative Office in the following hotels :

- single double
Carrefour de l'Europe**** :7050 BEF8900 BEF
Ibis Grand'Place** :4800 BEF5100 BEF

(Ibis Grand'Place, Grasmarkt 100 rue du Marché-aux-Herbes, tel. + 32 (0)2 514 40 40 & fax + 32 (0)2 514 50 67)
The prices include breakfast, service and taxes.

Reservation will be handled on a first-come-first-served basis. Hotel reservations must be made together with the registration (please fill out the registration form appropriately). All reservations must be guaranteed by a credit card.

You can register now with the on-line Registration form.

Technical programme inquiries

Professor André Danthine
Université de Liège

Institut Montefiore B28
B-4000 LIEGE (Belgium)

Phone : + 32 4 366.26.90
Fax : + 32 4 366.29.89
E-mail : Andre.Danthine@ulg.ac.be

Administrative Office

Mrs. Michèle Delville

Rue Saint Gilles, 31
B-4000 LIEGE 1 (Belgium)

Phone: + 32 4 222.29.46
Fax: + 32 4 222.23.88
E-mail : aimulg@misc.ulg.ac.be

Editor: -G. Leduc-
Webmaster: -S. Calomme-
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