Case 2: Bank Networking

Case Overview:

A large national bank in Chicago, Illinois, is relocating three blocks north in the Loop. The new location will enable the bank to consolidate multiple operations sites into a single downtown location. A drive-through facility with four drive-through lanes and two pedestrian lanes will be constructed in a parking lot across the street from the bank building. The new building itself is sixteen floors of office space, with another 30 floors of residential and rental business space above. The building is old and in need of major physical plant upgrades. Air handling systems (HVAC), electrical systems, and fire conrol systems must all be upgraded before occupancy. No data-capable cable plant currently exists in the building.

Your job is to design a local area network for this 16-floor facility and drive through that will provide data, low-resolution full-motion video (for security cameras), text, and voice services for the next five years and that will interoperate with 64 branch offices in the greater Chicagoland area. You have also been asked to specify a cable plant for the upper 30 floors. Software must be installed to enable direct communication between a secure server on the LAN and two mainframe computers stored in the basement vault of the new building. Finally, firewalls must be constructed so that all internal application and file servers are completely secure from outside attacks.

The data network deployed in the old bank facility is a proprietary IBM system. IBM has stopped supporting this system and you must determine a more up-to-date NOS. The robustness of this network is mission critical: customer transactions cannot be completed without file servers. Support for electronic fund interchange should also be a consideration in this new system.

Functional Specifications:

Customer Service Area:

The primary customer service area in the new building will be the first floor. This area will be staffed by twenty full-time account service representatives who open accounts, close accounts, process money order and credit card requests, open IRA accounts, and handle general bank questions. Four Automatic Teller Machines will be available in the bank Lobby, with two more available at the drive-through facility across the street. In addition to the account representatives, thirty-five teller stations will be situated on this floor. The account reps and tellers require graphically capable workstations for completing electronic forms, account queries and transactions, and other basic services. Each workstation is accompanied by a printer capable of printing transaction receipts and monthly bank statements (small, bursty jobs).

Loan Services:

Floors two and three of the building will house mortgage and consumer loan services for the bank. These service areas will contain six groups of eight private offices each, a document processing center (high speed photopier, scanner, and fax), and large reception/waiting area. 52 high-end pc workstations will be required for each of the two floors in these functional areas. Staff housed on these floors will also need Internet access.

Bank Administration and Accounting:

The remaining thirteen floors of the Bank's portion of the building will be occupied by bank accounting and administrative offices. Assume twenty offices on each floor, with one workstation in each. All offices will require LAN and Internet access.

Drive Through Facility:

The drive-through facility will house four tellers at all times. Tellers at the drive-through facility require the same equipment as tellers within the bank building proper.

Residential/Rental Floors:

Twelve condos/offices will be rehabbed on each of the upper thirty floors of the building. A minimal cable plant supporting video, voice, and 10Mbps data should be installed during renovation.


Workstations 200@$3000 each $600,000
Network infrastructure, servers, archival/storage, NICs   1,750,000