LAN and WAN components

Question

LO5: Design a small routable network comprising LAN and WAN components

Overview

This case study based assignment assesses the student's ability to design the logical and physical network topology of a small enterprise network.

WAN Topology

The proposed WAN network topology is hub and spoke with the London office as the hub and the port offices as spokes. The spoke links are dedicated WAN links provided by a local contractor and operate at 8Mbps. The London office has a 8Mbps WAN link to the Internet. All Internet access is via the London office.

LAN Topology

Each employee has a dedicated workstation and access to local printing. A centralised 4U database server is in the London office.

The Port offices have dedicated 100Mbps Ethernet switch based wired LAN which is connected to the WAN router. The Head office additionally has connections to the server and Internet.

The ISP has allocated the head office a single fixed IP address of 190.11.12.13/32. The office LANs use private IP addresses within the 172.16.0.0 network

Deliverables

Using Packet Tracer v5.3 (available form your module tutor) as a network design and planning tool write a technical report of approximately 2500 words comprising the following:

1. A logical diagram, including addressing scheme, of the network. This should be designed using the devices available in Packet Tracer and relevant screen dumps should be included in the report.
2. A physical diagram of the head office and one of the port offices. This should show accurate placement of all network devices and cabling.

Grade Criteria

Marks will be awarded based on the Anglia generic assessment criteria for a Level 2 module (see Module Guide for full details). However, the following guidelines should assist students in their assignment planning:

1. Report Quality
2. Accuracy of the logical topology and its linkage to the underlying physical topology
3. Usage of the available network address space to include addressing plan, subnet masks and  default gateway
4. Physical placements of devices (including wiring closet) and adherence to cabling standards
5. Choice, and justification, of networking components