Since then, transmission speeds have increased. To improve performance, use 1 - Dimensional Huffman coding. New fax machines use 2-D Huffman coding which results in bit rates of 14.4 kbps. The link is not shared by any other node. As the number of telephone nodes increased, local networks became overloaded and higher levels of switching were created.
Message Switching Other extreme from circuit switching No physical path is set up.
The entire message is transmitted to the next intermediate node, stored in its entirety, inspected for errors, and then forwarded to the next intermediate node. No physical path is set up. Each packet is then transmitted to the next intermediate node, checked for errors, stored, and then forwarded to the next intermediate node or the final destination node. Advantages Efficient use of the available bandwidth, since data from other sources may use the same link. Low delay for interactive data.