Describe what stepbystep procedure might be involved inside

Describe what step-by-step procedure might be involved inside the network in making a telephone connection. Describe TCP/IP network architecture, and explain the role of each part. Assume that I want to run an interactive video connection over a communication net work. Carefully explain whether it makes sense for me to run this connection over TCP or UDP.

Solution

1.a. The steps involved are

b. TCP/IP network architecture

It stands for Transmission Control Protocol and Internet Protocol. Objective network model used in the current Internet architecture. These protocols described movement of data between source and destination.

These protocols offer simple naming and addressing schemes.

Layer 1: Host-to-network Layer

Layer 2: Internet Layer

Layer 3: Transport Layer

Layer 4: Application Layer

c. Interactive video transmission

TCP vs. UDP - at the transport layer of the IP network stack, UDP is the preferred method for the delivery of live video streams. UDP offers reduced latency over the reliability that TCP provides.

It is a faster protocol than TCP, where time sensitive applications are involved .

TCP guarantees retransmission which is not very practical where live video is concerned.

However TCP is more firewall friendly as some networks will block UDP video.