Flow Control & Multiplexing

Flow Control
Done by receiving entity
Function to limit amount or rate of data sent by a transmitting entity
Simplest form: stop-and-wait procedure
More efficient protocols: Credit systems Sliding window
Needed at application as well as network layers
-Supporting multiple connections on one machine
-Mapping of multiple connections at one level to a single connection at another
-Carrying a number of connections on one fiber optic cable

-Aggregating or bonding ISDN lines to gain bandwidth