Dial-on-demand Routing - Design Considerations

Design Considerations

One important factor to be minimized is the connection establishment delay. This is the time from when the user first attempts to make a connection to when the receiving computer begins to receive information. This delay can range from 3 to over 20 seconds depending on various factors. These include but are not limited to the type of physical cable used in the connection, the distance the data is being sent, and the protocols used to send the information. Knowing the extent of the delay is a very important part of designing an efficient DDR system. If the delay when attempting to establish a connection is too great, the application will abandon the connection attempt and try again.