Wing and a Prayer (WAAP), our fictional company, is an internationally recognized aircraft designer and manufacturer based in Wichita, Kan., with design offices and manufacturing plants across the United States.
WAAP's frame relay network, provided by Carriers R Us, is configured in a hub-and-spoke topology. All connections go through WAAP's Wichita office. This setup has worked for several years, but traffic going through the corporate office has increased, and WAAP has been evaluating the addition of private virtual circuits among several offices. Although PVCs will eliminate some traffic on the Wichita connection, the company is also looking for alternatives to frame relay.
WAAP has concerns about using a public network. Because the company designs military as well as commercial aircraft, security is essential.
The company operates six offices. There are design offices in Wichita and Chicago, and manufacturing plants in Wichita; Atlanta; Fort Worth, Texas; and Palmdale, Calif. The Wichita corporate office has a full T1 connection to the frame relay network. The Chicago office uses a half-T1 (768-Kbps) connection, while the four manufacturing plants have 512-Kbps PVCs back to the Wichita office. Internet access is provided through the Wichita corporate headquarters.
Each office has a Cisco Systems 2500-series router connected to a frame relay network. Corporate headquarters uses a Cisco 7500-series router. Although WAAP hopes this equipment won't need replacement, the company isn't tied to a particular vendor. Each branch office includes workstations running Unix, Windows or Macintosh OS.
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