network design
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Draw a network design that you think will be useful in the future for the industry that you have visited. Network should include the following requirements:
3 routers
4 switches
10 PCs
4 VLANs.
Suitable IP addressing scheme in tabular form (assume as many hosts as necessary for each department).
Indicate where do you use static routing, dynamic routing protocols (name the protocols, RIP, EIGRP, OSPF, etc.), Access Control List (ACL) as per the network preferences. Justify your choices.
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- In class you have been introduced to how network designers organize protocols through layers. Subsequently, you were also introduced to the Internet protocol stack, which consists of five layers: the physical, link, network, transport, and application layers, as a typical example of this layered design. Additionally, it was also brought to your attention that the Internet protocol is not the only protocol stack available. A seven layered protocol stack called the Open Systems Interconnection (OSI) model is also available. In this assignment, you're required to identify the missing and/or merged layers between the two models and discuss their functionalities.The original HTTP protocol used TCP/IP as the underlying network protocol. For each page, graphic, or applet, a separate TCP session was constructed, used, and torn down. Because of the overhead of building and destroying TCP/IP connections, performance problems resulted from this implementation method. Would using UDP rather than TCP be a good alternative? What other changes could you make to improve HTTP performance?Comparing connectionless protocols to connection-based protocols, as well as connection-based protocols to connectionless protocols, should be subjected to a cost-benefit analysis.
- Compared to connection-based protocols, consider the benefits and drawbacks of connectionless protocols.Task NW29. UDP is the simplest transport layer communication protocol. It contains a minimum amount of communication mechanisms. It is considered an unreliable protocol, and it is based on best-effort delivery services. UDP provides no acknowledgment mechanism, which means that the receiver does not send the acknowledgment for the received packet, and the sender also does not wait for the acknowledgment for the packet that it has sent. An end system sends 50 packets per second using the User Datagram Protocol (UDP) over a full duplex 100 Mbps Ethernet LAN connection. Each packet consists 1500B of Ethernet frame payload data. What is the throughput, when measured at the UDP layer? Task DS30In this comparison, the advantages and disadvantages of connectionless protocols are compared to those of connection-based systems.
- It is wise to weigh the advantages and disadvantages of connectionless protocols in relation to connection-based protocols, and the other way around.It would be interesting to examine and contrast the advantages of connectionless protocols with those of connection-based protocols.Consider the advantages and disadvantages of connectionless protocols in comparison to connection-based protocols.
- Explain the pros and cons of connectionless protocols over connection-based ones?Transport layer foundational protocols TCP and UDP are TCP and UDP, respectively. Please explain why an application would be designed to utilise TCP as opposed to UDP. Give two (2) distinct examples.Connectionless protocols have been proposed as an alternative to connection-based protocols; discuss their advantages and disadvantages.