Frame Relay is optimized for speed and contains little error control. Frame Relay will discard
errored frames and will not attempt to recover from the error either through retransmission or
repair. Ideally, users can send as much data as they want across the network without interference.
However, because user requests for bandwidth often outstrip the network’s capability to
provide bandwidth, a mechanism is needed to handle congestion in the frame switch.
In this section, you will learn about the factors that affect network performance, as well as
methods for handling Frame Relay congestion. The two primary methods of congestion handling
use Frame Relay switches and routers.