In: Computer Science
1- Discuss the basic steps of an implementation strategy to apply various networking technologies at the campus network (Hint: consider different technologies following the TCP/IP network model).
2-Discuss An optimized routing and addressing for the campus backbone that interconnects buildings, provides access to the server farm and routes traffic to the Internet.
3- Discuss the considered performance and security metrics on the edge of the network where the traffic is routed to and from the network.
4- What additional hardware and protocols are required for transforming the data network to handle real-time voice communications within the campus network ?
1.
Stands for "Campus Area Network." A CAN is a network that covers an educational or corporate campus. Examples include elementary schools, university campuses, and corporate buildings.
A campus area network is larger than a local area network LAN since it may span multiple buildings within a specific area. Most CANs are comprised of several LANs connected via switches and routers that combine to create a single network. They operate similar to LANs, in that users with access to the network (wired or wireless) can communicate directly with other systems within the network.
A college or university CAN may also be called a "residential network" or "ResNet" since it can only be accessed by campus residents, such as students and faculty.
The two primary benefits of a CAN are security and speed.
Security
Unlike a wide area network (WAN), a CAN is managed and maintained by a single entity, such as the campus IT team. The network administrators can monitor, allow, and limit access to the network. Firewalls are typically placed between the CAN and the Internet to protect the network from unauthorized access. A firewall or proxy server may also be used to limit the websites or Internet ports users can access.
answer 2:
Campus network architecture typically employs a three-tier network topology that’s common in client-server networks. End user devices connect to switches comprising the bottom tier, the access layer. Access layer switches feed into the second tier, the aggregation layer, sometimes called the distribution layer. At the top is the core layer, where high-speed routers supply network connections and routing services among LANs and to locations outside the CAN.
Another topology option is a two-tier campus-area network design, typically used for smaller campus networks. In this design, the core and aggregation layers are combined into one layer. In Cisco parlance, this is known as a collapsed core-distribution architecture.
More recently, another form of two-tier architecture has emerged, the leaf-spine topology. The leaf-spine topology was developed to address some of the limitations of the three-tier design and to improve performance by reducing the number of network “hops” between any two devices.
Pica8, for example, has developed software that enables the leaf-spine architecture to be used in campus networks as well as larger enterprise networks. Pica8 technology enables hundreds of switches to appear as a single switch, with one IP address. That makes campus networks far easier to manage, helping to lower costs, while the two-tier design also improves performance and redundancy.
Also enabling lower costs for campus networks is network automation.
Open source frameworks have emerged to enable automation in enterprise networks, most notably Ansible. A library of Ansible “playbooks” contain predefined scripts that make it relatively simple for any IT personnel to implement automated routines in their networks.
Vendors are also building on the Ansible framework, such as Pica8 with its AmpCon™ automation framework.
Pica8’s AmpCon™ automation framework has brought automation to network device provisioning, configuration, testing and management. This allows the same number of administrators to deal with larger networks.
Enterprise network automation is an element of software-defined networking (SDN). In an SDN, a network controller handles network control and forwarding functions, based on automated, policy based software programs.
answer 3: Since communication within a CAN takes place over a local network, data transfer speeds between systems within the network are often higher than typical Internet speeds. This makes it easy to share large files with other users on the network. For example, it may take several hours to upload a long video to a colleague over the Internet, but the transfer may only take a few minutes over a CAN.