Controlling Traffic Flow
WAN technologies. This chapter discusses the basics of Frame Relay as well as how to
tweak it to maximize traffic control and throughput. Although Frame Relay is not a new
technology by any means, it is still widely implemented around the world. Even with the
advent of newer (and faster) broadband technologies, Frame Relay continues to remain
popular in the workplace.
OSI reference model. Frame Relay originally was designed for use with ISDN interfaces.
It is now used over a variety of other network interfaces as well.
not allowed inside the network itself. Instead, for any two points to communicate, there
must be a specific connection between them. In other words, for broadcasts to propagate
through the Frame Relay network, they must traverse virtual circuits. In contrast, broadcast
multiaccess networks (BMA), such as Ethernet, require that transmissions be placed on the
wire for all stations to process.
sharing of network resources. Most of today's popular LANs, such as Ethernet and Token
Ring, are packet-switched networks.
the robust capabilities, such as windowing and retransmission of lost data, than does X.25.
Frame Relay typically operates over WAN facilities that offer more reliable connection
services.
reference.
retention is significantly increased through writing facts and concepts down, even if
you never look at the information again.