Question

I am exploring the basic components of advanced broadband networks.

Describe the three layered architecture:

Briefly, explain the difference between link state and distance vector routing

Describe how the sliding window protocol works

Explain the CIDR concept and its major benefit

Answer 1

The three layered architecture is a client server architecture.This architecture is used for functional perspective logic,data access, data storage and user interface.

Three layer architecture is used for software design.

Three layers are as follows,

• Presentation layer:This is the top layer of the system.It contains all the information to provide services.
• Application layer:This layer is the middle layer of the architecture.This controls the functionality.
• Data Layer:Here the data is stored to the database.The place where the data is stored and retrieved.

Link state vector	distance vector routing
Link state vector makes all the nodes to know about the route.	Distance vector doubting only the neighbouring node is known
Link state information is flooded throughout the link state domain.	Distance vector routing information is not knownl

SLIDING WINDOW PROTOCOL:

It is one of the packet based data transmission protocol.Packets are send and its too hard to send duplicate packets and to identify the missing packets.

In sliding window protocol we set a limit for number of packets to be transmitted at a time.

CIDR concept:

Classless Inter-domain routing is an alternate to the traditional subnetting. It is a way to allow the more flexible way to allocate Internet protocol.

Benefit:

CIDR provides the better way to address since it prevents the wastage of addressing space since it is a flexible way of addressing.