simulation_it

Project Simulation

Name

Institution

Project simulation

Under different traffic conditions

The standard for wireless local area networks is based on the CA/CMA protocol in supporting asynchronous information transfers CSMA/CA employs an acknowledgement mechanism in verifying successful transmissions and optionally, a handshaking mechanism for decreasing collisions ahead. In both cases an exponential bakeoff mechanism is used. This task examines the theoretical performance of both mechanisms in terms of throughput and delay under traffic conditions which correspond to maximum load that network may support in stable conditions.

WAN performance and Application

WAN performance- it should be more than meeting the need for network speed. The performance and measurement of WAN as well as its network design and capabilities, are being affected through enterprises increase relying on mobile workforces and remote locations in a global marketplace. The need for enhancement in these areas was initially determined by two considerations: the desire to bring supply chain resources closer to customers in the field and an effort to reduce costs through offloading some of the work computing resourced to remote locations.

The bid to save money has become a more urgent during these tough economic times as firms look to enhance their network infrastructures and slash expenses through telecommunicating and extending WAN optimization technologies out to remote divisions.

Innovative ways to optimize WAN performance across conventional and unconventional networks smart network managers are looking at the services and applications used across WAN as well as habits of users on the network prior to making decisions on more software or hardware. Network is becoming more sensitive to keep performance pushed and steadfastness up to speed.

LAN is a communication network that provides users workstations with a transmission medium and a path sharing local and remote computer resources. It consists of network cables known as network media, protocols, and network interface cards, servers, clients and other network devices. Peer-to- peer network is the connection between similar devices for sharing information. It’s suitable in small organization where security is not important. They are unable to handle high volumes of network traffic. The traffic may be directed to both the internal or external servers over and within network. The application services running over this topology may be Emails, TELNET, FTP, HTTP and others. Traffic for a group of users may be specifying while featuring the whole LAN.

Scenario 1

-1181118288034137629504642316483877056970284693920Server performance application

300000network bytes/sec

250000

231140280035Network bytes total/ sec

200000

150000

Network bytes received/ sec

100000

50000network bytes sent/ sec

2:00AM6:00AM12:00PM6:00PM

Network bytes received /sec

This is counters shows bytes received at time it is an inbound transfer.

It is used in calculating incoming data received in the network.

Network bytes sent / sec

This shows counters bytes sent at a given time.it is used in calculating data sent in a network

Network Bytes total /sec

This simply refers to combination of network bytes received /sec and network bytes sent/sec. it is used in determination of the current link utilization. It should be less than 50% of the current bandwidth but if more it shows inefficiency in the network.

In the case of scenario 1 we can note that the throughput (bits/sec) is above 50% meaning that the FTP download time and global database response time will be slow due to traffic congestion in the network.

Scenario 2

Enabling business

Serve time response is the time’s amount taken by web server in responding to a browsers request. Even if the webpages have optimized speed, when the server time response is slow page display will be slow. The standard reduction accepted by Server time response is 200MS.

There are 2 ways of improving server time response; apply the existing hosting more efficiently and invest more in hardware and hosting. The decision about money and time should be put into consideration.

The server time response is determined by; Website traffic, when there is more traffic, problems are likely to occur. Second, the application of website resources, the less resources applied on webpages, enhancement of serve time response and minimal expenditure is experienced. Third, the alteration of webserver configuration or software can enhance serve time response and reduce on cost. Lastly, the enhancement of webhosting scope and quality can improve serve time response while you incur more expenses.

Website Traffic

When there is more traffic in a website, more resources is applied. A website becomes slow despite its initial speed and sluggish due to traffic congestion as in the case of Redland office.

Scenario 3

Video Conferencing

The quality of video conferencing can break or make a deployment. The first negative experience from users discourages them thus shunning away from using it. This results into investment loss.

Underlying infrastructure of network is critical for quality determination in video conferencing. In summary provision of high-definition, video leads to purchase of more bandwidth.

Frame rate is determined by the image frequency update and its effect in quality of video conferencing in the terms of system motion displays. One can configure the systems of video by application of high resolution of pixel by frame rate dropping. The quality of images of persons talking and moving is affected while static mages are displayed well.in the case of Redland office upgrading was effective to improve video streaming.