20 Jul WHAT LAYERS OF THE OSI MODEL ARE INVOLVED WITH PACKET SEGMENTATION?
The Open Systems Interconnect (OSI) model is a conceptual model that characterizes and standardizes the internal functions of a communication system by dividing network communication functions into abstraction layers. The OSI model groups similar communication functions into one of seven logical layers. The questions below are based on internal functions of some of the OSI layers.
(a) In a communication system that is based on a layered OSI model, packet segmentation is to ease transmission of data packets over the network. Since packet segmentation performs functions that are associated with specific protocols and the OSI layer, answer the following questions:
1. What are the three functions of packet segmentation?
2. What protocols perform packet segmentation?
3. What layers of the OSI model are involved with packet segmentation?
(b) Network bridging and switching occurs on one of the layers of the OSI seven layers. The questions below are based on network bridging and switching.
(4) On which OSI layer do network bridging and switching functions occur?
(5) What are the similarities and differences between a network bridge and a switch?
Please answer the questions in a 4–6-page paper. As you answer each question, you must provide support or evidence that will enhance and empirically prove your answers. Academic IT articles or real-life IT findings that are not found in journals or other academic sources must be used in supporting your answers. Please use APA style for all cited sources, including your reference page.
Please address the following requirements in your 4–6-page paper:
A title page
A report that includes the following:
An introduction to the contents of the report
An explanation of the OSI network model as it relates to network segmentation, bridges, and switches
Please cite your references in APA format.
Please answer the following questions and requirements to write your 3–5-page paper. As you answer each question, you must provide support or evidence that will enhance and empirically prove your answers.
Academic IT articles or real-life IT findings that are not found in journals or other academic sources must be used in supporting your answers. Please use APA style for all cited sources, including your reference page.
The following is a case study about a design company:
You are a senior network administrator for a networking solutions firm. Years ago, you installed a small LAN for the design company. It is growing fast and needs the networking solutions firm to upgrade its network. You assigned Laura to the job. That afternoon, while preparing to work on a lab assignment from her class in Cisco routing, Laura mentions that she would use a switch to implement VLANs to increase the performance of the design companys network because VLANs can be implemented quickly in switches. Explain to Laura when and where a VLAN would be the best choice. Under what circumstances would a VLAN not be the best choice? Provide examples to clarify your points.
Another technician for the networking solutions firm, Jennifer, overhears the discussion as she sits down to examine the lab materials on Laura’s desk. Jennifer thinks the design company should use an unmanaged switch to solve the problem. She reminds you that the design company has a relatively small network and that a managed switch would be more equipment than necessary. The design company’s network is experiencing congestion slowdowns. What do you tell Jennifer? Provide examples in your explanation and recommendations.
Jack also works at the networking solutions firm. As a graduate of the Cisco routing course, he thinks that a switched fabric would be the best choice. He has read that a switched fabric is easily tailored to a campus network of any size, but he is not sure how this works. Do some research, and explain how a switched fabric works. Is a switched fabric the best choice for the design company? Are there other topologies to consider? Provide examples to clarify the definition of and opinions on the uses of a switched fabric.
Ben also takes classes in Cisco routing, and he enjoys the hands-on exercises in his class. As he reviews his notes for that night’s class, he is unsure of the concept of port aggregation for VLANS. Explain to Ben what kind of information is kept in a switch for port aggregation and what it is used for. What method can be used to implement port aggregation? Provide examples in your explanation to clarify and accentuate your explanation.
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