Computer network

Alejandro Carriegos 9/1/2015 Network Layer The main purpose of the network layer packet is connecting with the destination; it must be familiar with the topology subnet and choose the appropriate paths through it. When the source and destination are on different networks, the network layer (IP), have to deal with these differences. The services provided by the network layer should be independent of the topology subnet. The transport layer must be protected in the number, type, and topology of…

This protocol is classified into rounds; every round composed of two phases; Set-up Phase (1) Advertisement Phase (2) Cluster Set-up Phase Steady Phase (1) Schedule Creation (2) Data Transmission A. Setup Phase: Every node selects independent of other nodes if it will become a CH or not. This selection takes into consideration when the node behaved as a CH for the last time. In the advertisement phase, the CHs inform their neighboring node with an advertisement packet that they become CHs.…

In this section the fast-recovery algorithm that makes TCP NewReno[1] perform better than the Reno[3], is described. During congestion avoidance if the sender receives triple duplicate ACKs, then it performs fast-retransmission and enters into fast-recovery. In fast-retransmit the sender retransmits the lost segment,sets the threshold value for slow-start as ssthresh = cwnd/2, and sets congestion window, cwnd = ssthresh+3 segments. In fast-recovery, the sender increases its congestion window by…

This label attached tell the packet that the route the packet is supposed to take in the network. Label stacking is a concept where a label can be attached to e packet that already has a label. This concept is used when a packet is to be transmitted from a location A to location Z. there is a Label Switched Path (LSP) between A to Z through various…

5.1.4.3 Lab — Using Wireshark to Examine Ethernet Frames Part 1: Examine the Header Fields in an Ethernet II Frame Part 2: Use Wireshark to Capture and Analyze Ethernet Frames Part 1: Examine the Header Fields in an Ethernet II Frame What is significant about the contents of the destination address field? It starts with the broadcast ARP protocol from the router asking who has 192.168.2.22. Then it starts showing the source ip address then destination addresses then rebroadcasting from your…

different technologies allow us to establish the connection. While most internet participants have hear of dial-up, Modem, ISDN and fiber connections an even faster connection is near. The new technology, known as next-generation passive optical network, or NG-PON2 is being tested. So what is the difference between a fiber connections to the home, which a small percentage has, to the NG-PON2? The NG-PON2 fiber is able to utilize four separate colors of light allowing for the operation of the…

the final destination. 2. Compare the following: • Flow Control vs. Congestion Control o Flow Control is used in Computer Networks because of its mechanism of controlling the data flow between sender and receiver. As a result if there is a slow receiver this is not overwhelmed with all the data transmitted by…

sharing between computers Windows Homegroup Windows home networking has been extremely complicated to configure in the past, but Homegroup is easy to set up. Just create a Homegroup from the Homegroup option within Windows Explorer (File Explorer on Windows 8) and you’ll get a password which enables you to access fromyour nearby computers and they can join your Homegroup. The other members of the Homegroup will now have access to your shared files when they log ON to the same network — then…

INTRODUCTION A network refers to a group of computers and other devices that are connected together usually by communication lines. The internet is a global network connecting millions of computers throughout the world allowing them to send and receive information. When it comes to multimedia communication both the internet and the network are vital platforms since multimedia elements such as graphics, videos, texts and audio need to be sent from one computer to another. As we know sending a…

role in every person’s day to day activities. It’s in basic terms a worldwide system of computer networks, where any person has the ability to access a wide variety of information in a small period of time. When speaking about the internet, one should focus on the History of it as well. The Idea behind the Internet was first started by J.C.R. Licklider who envisioned a globally interconnected set of computers through which everyone could quickly access data and programs from any site. After that…