The Lebanese Academic & Research Network

LARN/AUBnet Main Node, Proposal

by: Nabil Bukhalid, nabil@aub.edu.lb (August 1994)

Project Background

The Lebanese Academic & Research Network project (LARN) is the natural and logical expansion path for any serious and sustainable Internet link to Lebanon. The imperative need for a national academic and research network in Lebanon crystallized early 1992 coinciding and as a conclusion to the "Joining the Internet" feasibility study conducted by the PC Support Unit at the American University of Beirut (AUB). The feasibility study revealed an alarming national and regional communication vacuum.

LARN Affiliation Members

LARN affiliation eligibility membership is granted to all the Lebanese academic and research institutions. To join LARN and operate a LARN node, the subject institution should apply for membership and fulfill the basic communication, hardware and training requirements.

It is anticipated that LARN will initially start with the following members:

LARN Topology

LARN will be based on a star topology with the main node as an Internet gateway. The member nodes will connect to the main node via 2.4kbps or 9.6kbps PTT leased lines or Libanpac X.25 dialup lines. Individual qualifying users will be able to access LARN main node via dialup asynchronous modems.

National Responsibilities

Due to its leading academic and research position in Lebanon, AUB can assume the responsibilities of planning, coordinating, engineering, implementing and running of the national Lebanese Academic and Research Network.

During the past three years AUB acquired a solid networking experience. The technical and managerial involvement covered the wide spectrum of LANs and WANs including design, procurement, installation, wiring, configuration, optimization, debugging and training.

AUB's implemented and planned network is by far the most important in the country. Since August 1993, AUB has been operating the sole Internet link from Lebanon and has access to the vast wealth of information resources it offers. In addition to this, AUB is managing the Lebanese root domain LB-DOM and Lebanese academic sub-domain, ac.lb.

AUB's position is ahead of other universities and research centers in Lebanon and can share its experience by managing and running LARN main node and Internet gateway.

Regional Responsibilities

AUB, as a major regional academic and research institution, can play an active leading role in any regional network attempt.

By providing technical and managerial services and possibly home to part of the regional network resources, AUB can benefit from the projects' allocated funds and boost its local and global connectivity.

Lebanese PTT Infrastructure

The Lebanese telecommunication and power infrastructures were badly devastated by sixteen years of recurring wars. The public utilities were exposed to vandalism, lack of maintenance, harsh operational environments and technological obsolescence.

In addition to the above and in the absence of law and public property respect, employees and individuals abducted public facilities to their personal benefit. The telecommunication and power distribution wiring grids suffered most from this phenomena. The cumulative by-product of sixteen years of unplanned expansions and inadequate repairs reduced their installations to an absolute mess of entangled wires.

The reconstruction, restructuring and modernization of the telecommunication and power infrastructures are among the highest priorities of the present government. The process started a year ago, but the inherited incompetent human resources and political burdens are blocking the normal advance of the projects. Budgetary constraints have also contributed to the implementation delays.

Based on what is planned, the Lebanese telecommunication infrastructure will be adequately modernized by the year 1998. The phased projects will cover:

Until then, the present local infrastructures are region specific. It is very difficult to assess the availability of adequate and reliable medium of transmission on the country and not even on the city level. Each case should be investigated separately, but the best we can achieve are:

Inter central office loops are of poor quality and congested during working hours. A central office may be completely isolated for long weeks if not months. Acquiring a new telephone line is a real challenge.

The availability of the international lines is scarce and not adequate. The best attainable bandwidth is 1.2 Kbps. As an alternative and for the last ten years, institutions, companies and individuals privately installed a wide base of non-regulated cellular phones and a less significant number of earth station satellite nodes.

The X.25 based Public Switching Data Network (PSDN) is administered by a semi-private company, Libanpac. Libanpac services are reliable with a maximum bandwidth limited to 9.6 Kbps. During congested hours, it might fall to 2.4 Kbps.

Present Prohibitive Internet Communication Costs

AUB present physical communication access is via Libanpac. The link consist of a 9.6kbps dialup X.25 local leased line. The Internet access is via Fnet, a French Internet service provider.

AUB's present Internet link can technically support the complete set of the Internet's features, but professors and researchers at AUB are only benefiting from e-mail access. AUB is paying around $240 for each Mega Bytes of outgoing and incoming connection time and volume. The estimated batched and compressed e-mail volume consumed by 100 users is around 20 MB per month, a yearly liability of $58,000. For an itemized list of Internet e-mail costs versus total number of users please refer to Table I.

As access bandwidth, connection time and volume requirements to the Internet increase, Libanpac charging scheme will grow to be more and more prohibitive for any serious Interneting.

Bandwidth Enhancement

The 9.6kbps dialup X.25 link was adequate for the pilot setup and can be used for restricted Internet mail access only. For serious Internet connectivity and for students and possibly LARN members to access the Internet, AUB's present Internet link should be upgraded to a 64kbps satellite leased line connecting AUB Internet node directly to an Internet service provider in the USA or Europe. Please see attached Internet Link to Lebanon, proposed upgrade (Option1).

The two possible 64kbps satellite links are Intelsat and VSAT C-Bands. Intelsat initial hardware investment is higher than VSAT but offers a more reliable link as VSAT C-Band link quality declines with bad weather. VSAT transmission latency is marginal and might reach un-acceptable limits if the satellite switch is congested. Based on the above an Intelsat C-Band station seems to offer a more reliable performance and a better return on investment.

The initial year costs for an Intelsat C-Band satellite earth station, 5 meters antenna, are around $350,000 and for a VSAT C-Band earth station, 2.4 meters antenna, around $220,000. The recurring yearly costs are around $190,000. Following is an itemized list of costs.

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Another option would be to acquire from the Lebanese PTT a 9.6 kbps AVD leased line to France. The present AVD lines are not reliable, badly maintained and subject to long uncontrollable break periods. A 9.6kbps AVD line to France will cost around $104,000 per year and the French Internet service provider charging schemes are based on volume allocation. Please see attached Internet Link to Lebanon, proposed upgrade (Option2).

Connecting LARN Nodes to AUBnet Main Node

Each node will require a local 9.6kbps leased line or an X.25 dialup leased line for a yearly estimated cost of $4,000 and a WAN/LAN router at each end. A low end IP router costs around $2500.

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Internet Resources

The Internet broad international popularity was not due to the its meta-network, or network of networks physical aspect. The popularity of the Internet is based on the vast wealth of information resources it offers and on its catalytic role in the inter-exchange of information at the national and international levels. The Internet is considered as a away to raise the general educational and technological levels in a country and as a boosting support for economic development.

The Internet resources are distributed on the vast web of computer networks spanning the globe, connecting millions of host computers and many more millions of users. The Middle East contribution to this vast bank of information is sparse if not nil. AUBnet and LARN's main objectives will concentrate on narrowing this information gap by providing good coverage on a number of Lebanese, Arab and Middle Eastern subjects.

Following are LARN/AUBnet planned networked resources for the initial phase: (LARN/AUBnet Resources)

Setting up the above mentioned resources would require at least two Unix based servers fairly configured, a modem pool and a CD-ROM jukebox for a total estimated cost of $51,000. The project will also require a dedicated computer and communication engineer with adequate Internet experience costing around $25,000/year. For an itemize list please refer to the following table.

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* The requirements for the actual setting of the databases, administration, data collection and feed are subject sensitive and beyond the scope of this technical proposal.

LARN/AUBnet Budget Plan

* Estimates will be made public upon the completion of the procurement process.

Financial Status

* Estimates will be made public upon the completion of the procurement process.