Which is true regarding store-and-forward switching method?
A.) Latency varies depending on frame-length B.) Latency is constant C.) It is default for all Cisco switches D.) It only reads the destination hardware address before forwarding the frame Ans A Store-and-Forward switching copies the entire frame into its buffer and computes the CRC. If a CRC error is detected, the frame is discarded, or if the frame is a runt (less than 64 bytes including the CRC) or a giant (more than 1518 bytes including the CRC). The LAN switch then looks up the destination address in its switching table and determines the outgoing interface. The frame is then forwarded to the outgoing interface. Cisco Catalyst 5000 switches uses the Store-and-Forward method. The problem with Store-and-Forward switching is latency is increased. Latency also varies with the size of the frame. The larger the frame, the more latency associated. This of course is due to the fact that the entire frame is copied into its buffer before being forwarded.
Related Questions
- Identify the switching method that examines the destination MAC address as the frame is being received then begins forwarding the frame prior to receiving the entire frame?
- What is the difference between Store-and-Forward switching and Cut-Through switching?
- Which is true regarding store-and-forward switching method?
