Computer Communications & Networks Essay Example | Topics and Well Written Essays - 2000 words

Computer Communications & Networks - Essay Example However, in order to examine the processes, methods and techniques, we must first understand the TCP/IP protocol suite itself. Considering Internet Protocol (IP) first is vital because the rest of the TCP/IP suite is constructed on the IP. Likewise, it is also called as a mechanism that is incorporated for data packaging, transferring and routing via TCP/IP internetwork (Kozierok 2005). Moreover, IP is also involved in constructing and packing all data grams in a similar fashion while managing them between devices in an intelligent way. Before getting into more detail, the prime objective for having a network, internetwork and TCP/IP suits is to empower and enable networking application. For online accessibility, these applications are now operational via web browsers. For instance, anyone wants to upload pictures, multimedia contents to share with family, similarly, chatting with friends and colleagues from Internet Relay Chat (IRC) applications. In general, a common interface is no w reachable for making communication purposeful. Accordingly, student portals are now developed and considered as an efficient educational interactive interface for universities and colleges. Likewise, apart from some examples given previously, student portals are advanced application bundled with many features and applications supports education and learning activities. In the next section, we will explore networking concepts for a student portal named as ‘X-stream server’ accessed by a student from a remote location. The X-Stream Server The first section i.e. the internal semantics will focus on connectivity of a computer internally as critical components of the computer network must be examines by a holistic approach as every component contributes to the heterogeneous system (Olifer, 2005). If anyone wants to access the X-stream server from the home computer, it must be connected to the Internet. The simplest of troubleshooting steps incorporates the ‘ping†™ command. The syntax of the command will be ‘ping (space) (destination address)’, executes via command prompt. Likewise, ‘tracert’ command can also be used to give an illustration of delays from source to the router along with end to end connectivity to and from the destination (Ross 2009). However, many devices and protocols are integrated for maintaining and identifying the computer and sustaining connectivity. The first point of interest in addressing internal semantics is Ethernet. It is considered to be the most popular Local Area Network technology that is implemented globally (Ethernet. 2007). The Ethernet connects with a shared transmission medium called as twisted pair or a cable with a multi-port hub, switch or a bridge. Most commonly, an Ethernet switch or a DSL router + Switch is most common. A typical Ethernet frame comprises of six parameters i.e. Preamble, destination address, Source address, type, data and CRC (cyclic redundancy checking) . The preamble is responsible for synchronizing clock rates for the recipient and the sender. Address is usually six bytes in size and is responsible for identifying frames as per the sender and receiver address, it transmits the data in network layer protocol. However, if the match is not made, it discards the frame. Likewise, the type indicates the protocol type. Normally it