The team removed all non-IP protocols on theABC’s Net II LAN. It was determined that themixing of various protocols on the LAN turnedout to be a major cause of network congestion.Switching to all IP protocol substantially reduced network congestion and decreased latency but unfortunately was very difficult to install. The system had issues with legacy applications and data sources that were not IP compatible. Substantialwork had to be done to convert theseapplications and data sources to IP, and, in somecases, new software had to be installed to convertthese applications.
Figure 2 illustrates a schematic view of ABC’s Net II. Note that in actuality there are more thanthree stores connected to the frame relay network,that there are two Cisco 7204 routers, and thatthere are more applications, applications servers,desktop machines, and phones than depicted inthe diagram.