To satisfy the school’s requirements, I created the following network design which has six pats.

Figure 4 - Network design Sections
 Data center: All the servers have two connections to the core layer, in case one layer 3 switch fails for any reason.
 Core layer: The layer 3 switches provides high bandwidth between all layers and great redundancy in this level.
 Distribution layer: The routers are using as a routing protocol EIGRIP.
 Access layer: This layer connects the users with the routers through 4 switches and 40 wireless access points.
 Users: Here are approximately 700 people connected to the network with up to 1.500 devices mostly using wireless.
 Internet edge: A 2 Gbit external fiber connection is available and a firewall …show more content…
The data loss generated by accidental mistakes or computer failure usually costs more time and money to fix than to have a backup server running all the time. Because all the servers’ software are from Microsoft, it is convenient to choose Windows Server 2012 as a backup solution. The Windows Server Backup service routinely backs up and brings back data if needed. It can backup and then recover volumes, folders, files, certain applications, and the system state – basically everything. An appropriate second backup solution could be a cloud backup due to the high available bandwidth and the nowadays low-cost cloud backup storage.
5.16. ROUTING PROTOCOLS
The goals of the routing protocols are to learn the available routes that exist on the network, then build routing tables which will make the routing decisions. Some of the most common routing protocols are RIP, IGRP, EIGRP and OSPF . There are two main routing protocol types: link state and distance vector. Distance vector advertises the routers’ routing table to all neighbor routers regularly, which could make a lot of bandwidth, while link state protocol only advertises routing updates when something changes. This will cause that the routers will receive fast the new route information through a multicast update .
Rip V1/V2 is an old technology, easy to use but can only handle small networks with only a few devices. It selects routers with the lowest hop count and updates the routing table in every 30