|
Establishing Connections
|
|
|
Connect: Contacting host www.cs.williams.edu...
- COMPUTERS MUST FIRST EXCHANGE MESSAGES TO "ESTABLISH A CONNECTION" SO
THAT BOTH ENDS WILL KNOW ENOUGH TO KEEP TRACK OF MESSAGES AND
SEQUENCE NUMBERS.
- BECAUSE THESE INITIAL MESSAGES RESEMBLE THE PROCESS OF ESTABLISHING A
CONNECTION IN A CIRCUIT SWITCHED NETWORK, THE CONNECTION IS OFTEN
CALLED A VIRTUAL CIRCUIT.
- VIRTUAL CIRCUITS DO NOT RESERVE A PATH THROUGH THE NETWORK
AS IN A CIRCUIT SWITCHED NETWORK. THEY DO RESERVE A BIT OF
MEMORY SPACE IN THE COMPUTERS THEY CONNECT.
|
|
|
