Question

Q1 : In your own words, explain the difference between Routing and Forwarding.

Q2 :In your own words, compare between the architecture of the Infrastructure and Ad hoc Network

Please I want text written answer, not on a paper thank you!

Answer 1

1. Difference between Routing and Forwarding:-

When we asked to tell some difference between the Routing and forwarding then we just go for the basics of these two as how they actually works,means from their working methodology. So Routing refers simply the whole network process that defines every single paths that a packet take from source to destination.While when we talk about forwarding it tells us about moving a packet from a router's input port to the appropriate output port. So Basically Routing is the process which decide that where and how we can send the received packet, but forwarding only talk about where to send the received packets.It refers to actual sending of data packets to a part of a router based on destination IP of the packets and these all happens with the help of forwarding table stored on router memory, and Routing from its every process permanently updates that forwarding tables.

2. Comparison between the archietecture of Infrastructure and ad-hoc network:-

  Infrastructure Network:-

Infrastructure Network is the wired network mode, in which every station are connected to a fixed wired network.Every wireless devices here are connected to a fixed point that is stated as access point, and for the communication between the nodes this access point is responsible. It means that whenever a node wants to communicate with any other node then the first node must communicate with access point then that access point transfers its message to that second node. So, we can clearly say that Infrastructure Network have a Central Access point that transmitt the information between the nodes. Infrastructure Network does not provide us the flexibility, and it is widely used for the large coverage area. Whenever any faults occurs in this type of Network, then it is very hard to find that out and rectify them. Since the coverage area is large then obviously it should have a high cost means costly to install or re-install,but when we talk about the term reliability, it is the best and have permanent services.

Ad-Hoc Network:-

Here in ad-hoc type network mode we have no such any access point. By the name it shows clearly its behaviour, means every node is connected with some other node not in the permanent ways but in the temporary ways.It is used generally in emergency condition. Here communication between the nodes directly without the use of access point. It provides us great flexibility in comparison to infrastructure. Here, if any faults occurs then it is easy to detect them, Ad-hoc network do not need much maintenence in their service duration. As they have small coverage area so there installation and re-installation is economical in comparison to Infrastructure mode. The transmission of information is not much reliable, but are useful in emergency purposes like during any natural tragedy.