Riordan Manufacturing Plan

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This document provides suggestions in terms of how to upgrade the network to allow the company to take advantage of 21st century technology resulting in increased productivity, profitability, and efficiency via the network infrastructure and the protocols it uses. The Riordan Manufacturing Company is set up with 4 different office locations

Text of Riordan Manufacturing Plan

Riordan Manufacturing

LAN Evaluation and RecommendationsCIT 245 Local Area Networking Fundamentals

November 19, 2012David Lindsey

This document provides suggestions in terms of how to upgrade the network to allow the company to take advantage of 21st century technology resulting in increased productivity, profitability, and efficiency via the network infrastructure and the protocols it uses. The Riordan Manufacturing Company is set up with 4 different office locations. The headquarters is located in San Jose and has 125 employees assigned to that office. Two other offices are located in Albany GA with 45 employees and Pontiac Michigan with 130 employees. Their largest office located out of the country in China, which has 250 employees. The main focus we are taking on this project is reassessing the network configurations and equipment being used by the company. Many variables will be taken into consideration in examining the current layout. First to be look at is the topology of the network and see if this is the best physical topology for the company or if restructuring it can provide the company with better performance out of the network. Then the equipment will be examined in the topology and see where outdated pieces of equipment can be removed or replaced with more advanced pieces of equipment to get the best results. A few of the results that are being looked at is better redundancy, less collisions of data on the network, security, higher speeds available, and reliability. This will assist with providing more up to date network diagrams with any additions added to them so that a comparison can be made.

Based upon reading the company history the Riordan Manufacturing's last network upgrade was in 2000 when they expanded its operations in China. The San Jose network model is a client/server network and the current network consists of a NAS storage server, Windows and Unix servers, 35 Windows 2K computers and 15 Mac G5 computers. There will be a satellite in place in case the T1 line goes down giving the ability to maintain network communication with the other plants. With San Jose being the corporate site the recommended network changes are upgrading the backbone and network cabling from 1Gbps and 100 base T to fiber optic cable. According to Butters Law of Photonics, that says the amount of data coming out of an optical fiber is doubling every nine months. (Moore's Law, 2012) The recommendation of upgrading to fiber optic cable would provide greater bandwidth with speeds up to 10Gbps to also provide better VOIP services. Fiber optic cable also provides low attenuation and greater distance, improved security since fiber optic cabling doesn't radiate signals this decreases the chances of the cable being tapped. Using fiber optic cable rather than copper cabling would greatly improve network performance from an end-users perspective since greater bandwidth provides fast and efficient data transfers between the different plant locations. Not only will fiber optic cables be used at the San Jose location but across all the locations to ensure connectivity and the ability to add additional users at each site without bandwidth loss.

Protocols currently being used are DNS, TCP/IP, SNMP and FTP. Replacing the two gateway switches with two Layer 3 routers still support these protocols and would also be an advantage since the router is useful for establishing connectivity between different networks. Routers also provide better security since they use Access Control Lists (ACL) and Network Address Translation (NAT).

At the Albany, Georgia site the recommendation is to change the switch configuration. On the current layout on the Manufacture floor the switch is directly connected to the server. The other two switches support the workstations on a bad design.

The recommendation is to replace the three current Nortel Baystack switches with Cisco switches that have VLAN and Trunk connection capabilities. The Network would then be configured to have all three switches trunked together. This will allow for the ability to enable the VLAN management across the entire site, including managing the servers that are a part of each VLAN. Each switch will be connected using switches using 100Base-TX Ethernet. The router would also need to be replaced with a router capable of VLAN routing with sub-interfaces on a single trunk port. Using a VLAN environment would make improvements in several areas. It would break up the current two broadcast domains and decrease the overall network traffic. Management of the network would become easy. Each workstation would be assigned a VLAN when connected to any of the three switches, joining it to that virtual network and its resources.

Security would be improved, user would be assigned on a specific VLAN and the new configuration will be more scalable to support the future growth, and lends itself to remote management if needed.

Pontiac, MI site evaluation changes were to make that office network performance better. Starting with the manufacturing floor coming into the 24 port hub, adding a 24 port Cisco switch will assist with there being no network congestion out to the manufacturing floor. From the switch this will be connected up to the 4 servers and the APC Backups up to that first switch that has the manufacturing floor on it.

There will also be another connection off of these servers to another switch that will allow access into the main office area. A connection from all the servers to the switches using 100Base-TX Ethernet cable will also be implemented. From the second switch will be 5 office computers and one network printer to this switch using 10Base-T. Also off that switch will be two different 48 port 100 Mb/s switches. These two 48 port switches will have 20 computer hosts and 2 network printers each. This way it divides up the network to two various locations in the building (possibly floors) and can run Cat5 10Mbs cabling between the switch and the devices. Both 48 port switches will have a direct connection to the Cisco router out to the corporate headquarters. This configuration uses a star topology same as before, with the new network devices and new layout this should increase network performance, reliability, and options for expansion at the Pontiac site. The logical topology as well is a star topology.

Riordan Manufacturing Chinas plant network is focused more on plant employees. China has a direct satellite connection to the corporate headquarters, but also has their own email and network server. The first change that should be implemented would be to add a firewall. This would be to add security to the incoming connection and will also use a proxy setup to assist in blocking some of the Internet. By doing this would add encryption to the data being transmitted to the corporate office and correct any communication problems through the satellite connection. This is a must to encrypt any emails or other communications across the network. When using the proxy server there would be an updated blacklist and the firewall would be fully up-to-date with the newer firmware. Overall the company should expect to completely scratch the system fresh and start fresh as the network infrastructure is behind on the advances in technology that is available. To ensure to keep cost down it is advised that the company implements changes over time but also in a timely manner.

The added use of VoIP promises user friendliness, increased productivity and cost savings, and the potential for new applications Riordan Manufacturing needs to ensure the following recommendations are in place at all sites to eliminate the risks associated with implementing a VoIP system. A poorly implemented VoIP system would cause delay, data loss and greatly impact the quality of Riordan Manufacturings telecommunications system. Benefits for the company to consider are voicemail, conference calling abilities, call forwarding, equipment such as interface cards, routers, UPS (uninterrupted power supplies) and video conferencing. There is an additional benefit to using VoIP which include cost. When using VoIP it can help to reduce the cost of long-distance phone charges. This is a big help to the company as the company is spread across a large region. The reason for this is that the signals travel through the Internet or any other web based connection. To make this more relative and easier to understand one can think of this as an email being sent where there is no charge to send the email and have it delivered.

The first additional recommendation to avoid costly upgrades in the future would be to ensure network infrastructure readiness at all locations. By using network assessment tools and bandwidth simulators the network administrators can test their current bandwidth and discover the amount of traffic on the network, since a VoIP system will put additional strain on the companys network. Another recommendation would be to determine the locations current and future needs based on plans for expansion, and rate of company growth. A growing concern for many businesses is security, if Riordan Manufacturing handles confidential data they may have to ensure security standards such as the Internet Protocol Security (IPsec) protocol, Transport Layer Security (TLS) and Secure Real-Time Transport Protocol (RPTP) are in place to handle encryption and authentication and cryptographic security. It is also imperative that Riordan Manufacturing has an IT staff trained to handle the migration to VoIP, since failure to have a properly trained staff could hinder the install and be not only expensive but time consuming to repair. Finally to fully utilize the upgrade to VoIP all employees should be trained and prepared for the new technology otherwise the implementation would not be used to the