In today's society networking is pivotal structure in the way information is transferred and received between people. In the business world we need to send information to people to at fast rates to meet user satisfaction. Imagine places like wall street that is the mecca of business that constantly send information back and forth to get the right information to keep investor aware or up to date on a forever changing stock market. Picture one the biggest libraries in america the library of congress in washington dc that has network structure to accommodate millions of people that commute and use resources such online biography and web capabilities every day. For system like this to exist we depend on a common network layer that is used all …show more content…
In the second and third layer of osi model it is called data link and network link. Data link is packaging data into frames and transmitting those frames on the network and performing the error detection correction by uniquely identifying the network devices with an address, and handling the flow control. Data link layer has two sub layer which is called media access control which is know as the computer unique identifier to which the network is assigned The mac address comes with a 48 bit address that is assign to it devices network interface card/.Second sub layer is llc which stand for logic link control, which is know as the multiplex functions that is process of over media access control To provide a means of exchanging data between end users across a MAC-controlled link or a collection of LANs interconnected by MAC-level bridges. Layer 3 switching is another example of fragment-free switching. Up to now, this discussion has concentrated on switching and bridging at the data link layer Layer 2 of the Open System Interconnection OSI model. When bridge technology was first developed, it was not practical to build wire-speed bridges with large numbers of high-speed ports because of the manufacturing cost involved. With improved technology, many functions previously implemented in software were moved into the hardware, increasing performance and
The physical layer is especially important because of its ability to carry data over a physical link that connects the network nodes between the hospitals (Bauer & Patrick, 2004). This layer of technology would be useful because it allows the implementation of data from one source to another. The data link layer acts as a safe guard because it is able to handle any of the errors that result from the physical transmission of data. In order for the OSI model to function properly there must be a layer in the technology dedicated to the successful transmitted of
2. The seven Layers in the OSI model are Physical Layer, Link Layer, Network Layer, Transport Layer, Session Layer, Application Layer and the presentation Layer. Each layer has a specific function to perform and consist of different protocols. Physical layer is the lowest one and handles transmission and reception of messages over the medium. Then comes the link layer , it allows error free transmission of the data frames in the physical layer. The network layer takes care of processes like routing, traffic control and fragmentation of the data. The next one is the transport layer, it takes care of the
Switches connect devices that are connected to their ports. Data is sent from a device to a switch which then forwards the data to another device. Switches at the data-link layer of the OSI (Open Systems Interconnection) seven-layer model use the source and destination MAC address to forward data. The switch relies on the destination MAC address to send the data. The destination MAC addresses and port are stored by the switch in an ARP table. The switch creates the table. If a MAC address is unknown then the switch finds it by trying available ports then it adds the MAC address to its table.
-This level provides message routing, determining whether a particular message to be sent to -Level 4 (Transport Layer) or Level 2 (data link).
Improved system performance by converting legacy codes into optimized SQL and PL/SQL packages which in turn saved company costs
Implementing such large-scale connectivity is reminiscent of the beginnings of the internet in the 1990s. The creators of the networks rushed to introduce this new phenomenon to the world, not considering the consequences of a service with
The outstanding growth of network technologies in the past decade have contributed to millions of new applications and industries. Literally millions of companies around the world were created to serve this huge growth. Even though many of those companies did not survive until the present time, most of the applications did survive and they are still widely used among consumers of all ages, cultures, and backgrounds.
Corporate networks are facing an unprecedented number of challenges, from ensuring data security to increasing mobility across a distributed workforce. As IT manages all the components of network performance, like storage, switches, servers and firewall, there 's a need to take a deeper dive into the question: What 's the real role of your network?
It is very easy to communicate through a network. People can communicate efficiently using a network with a group of people. They can enjoy the benefit of emails, instant texting, telephony, video conferencing, chat rooms.
4). Over the past decade, processor manufacturers, like Intel, have used various technologies to increase system performance. Describe in detail 3 of these technologies as discussed in the online content. (Please use a separate paragraph for each technology.)
In computer networking, the transport layer is a conceptual division of methods in the layered architecture of protocols in the network stack in the Internet Protocol Suite and the Open Systems Interconnection (OSI). The protocols of the layer provide host-to-host communication services for applications. It provides services such as connection-oriented data stream support, reliability, flow control, and multiplexing.
NIC – A NIC or Network Interface Card works on layer 1 (the physical layer) of the OSI model. A network interface cards function is to encode the data to bits that can be sent through the network cable.
The basis of a computer used are connected are by cable connections and wireless connection. Cable connections is also referred as a transmission line is specific cable to carry alternating current of radio frequency, that is, currents with a frequency high enough that their wave nature must be taken into account. A wireless connection is made of generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structures (Open Systems Interconnection).
Layer 2 Data Link – this layer sets up the connections over the physical system, putting parcels into the systems outlines. This layer has 2 sub-layers, the Logical Link management Layer and therefore the Media Access management Layer. Ethernet is the principal information linkage layer being use.
Link-Layer Frame: It encapsulates network layer diagram with a link layer header.When we send many signals through a communication link to form a single, complex signal at the same time is multiplexing. The DSL modem of each customer uses the existing telephone line so that it can exchange data with digital subscriber line access multiplexer(DSLAM) which is located at the local central office of Telco. The DSL modem of home takes the digital data and translates it to high- frequency tones for transmission over telephone wires to the CO. At the DSLAM many analog signals are translated back into digital format. The residential telephone line carries both data and traditional signals at the same time, which are encoded at different