Computer Sciences and Information Technology Essay - 3

Computer Sciences and Information Technology - Essay ExampleFrom the discussion it is clear that the suppuration in the use of the Internet has resulted in the use of more(prenominal) multimedia components, which require greater network bandwidth and consequently new network considerations. Audio and television receiver as multimedia components require grown bandwidth for transmission, and therefore pose a very real threat to over burdening the connections and hampering other transmissions in the process. The quagmire has led to the maturation of a technique to prevent the put on the line of network collapse through over despatch. transmission control protocol is presently the most popular end-to-end congestion inhibit weapon in use. From TCP transmission properties emerged TCP fond transmission, a connection standard that ensures the integrity and reliability of the network amidst heavy usage for multimedia float transmissions. TCP is the most common congestion control mec hanism over the Internet.As the essay highlightsmost of the Internet traffic is TCP based, consequently, the need for congestion control protocols to be TCP friendly is indisputable. Therefore, the rate at which non-TCP flows send data should be as close as possible to the TCP rates, otherwise called TCP friendly. In summary, TCP friendly flow of streaming media is one that makes confusable utilization of the network resources as a standard non-conforming TCP under similar circumstances. Real-time multimedia applications streaming over the internet usually require special network circumstances to avoid congestion, as they may consume large amounts of bandwidth and cause packet drops. (Wang, Long, Cheng and Zhang, 2000). TCP friendly flows offer a means of congestion control, allowing applications to make better use of the network, and prevent the uneventful network die that results in the crippling congestive collapse in computer networks. Usually, UDP traffic, mainly for the tran smission of stored streaming audio over the Internet, consumes higher than normal bandwidth, which poses a risk to other network connections (Wang et al, 2000). As such, UDP connections result in congestion in the networks, and unfairly interference with initially responsive TCP connections due to the greater load on the network resources. Consequently, UDP, a non-TCP protocol needs to adaptation to bandwidth control mechanisms to make it TCP-friendly, and therefore make similar use of network resources as the more regular TCP connections. There exist a number of congestive friendly mechanisms. For instance, end-to-end TCP friendly congestion control mechanism reduces the load on the network when packet drops occur (Wang et al, 2000). The end-to-end congestion control is useful for both responsive and unresponsive network flows. However, end-to-end TCP friendly congestion control can only detect congestion through delays and loss in data packets, which means that their reaction is u sually too late. Alternatives that atomic number 18 more efficient include hop-by-hop congestion control, which are better at avoiding congestion before it occurs (Wang et al, 200