{"id":36570,"date":"2015-07-03T13:40:15","date_gmt":"2015-07-03T13:40:15","guid":{"rendered":"http:\/\/vskills.in\/certification\/blog\/?p=36570"},"modified":"2024-04-03T13:18:49","modified_gmt":"2024-04-03T07:48:49","slug":"transport-layer-part-two","status":"publish","type":"post","link":"https:\/\/www.vskills.in\/certification\/blog\/transport-layer-part-two\/","title":{"rendered":"TRANSPORT LAYER (PART TWO)"},"content":{"rendered":"<p style=\"text-align: center\"><a ref=\"magnificPopup\" href=\"http:\/\/vskills.in\/certification\/blog\/wp-content\/uploads\/2015\/07\/TRANSPORT-LAYERPART-TWO.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-37271\" src=\"http:\/\/vskills.in\/certification\/blog\/wp-content\/uploads\/2015\/07\/TRANSPORT-LAYERPART-TWO-300x222.jpg\" alt=\"TRANSPORT LAYER(PART TWO)\" width=\"300\" height=\"222\" srcset=\"https:\/\/www.vskills.in\/certification\/blog\/wp-content\/uploads\/2015\/07\/TRANSPORT-LAYERPART-TWO-300x222.jpg 300w, https:\/\/www.vskills.in\/certification\/blog\/wp-content\/uploads\/2015\/07\/TRANSPORT-LAYERPART-TWO.jpg 566w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><strong>The Transport Layer Services:-<\/strong><\/p>\n<p>The task of transport layer is to provide reliable and cost effective transport of data from source machine to destination machine. To achieve this goal , the transport layer makes use of the services provided by the network layer.<\/p>\n<p><em>What is transport entity?<\/em><\/p>\n<p>The hardware or software within the transport layer which does the work of making use of the services provided by the network layer is called as transport entity.<\/p>\n<p><em>Types of Transport Services:-<\/em><\/p>\n<p>1. Connection Oriented<\/p>\n<ul>\n<li>In the connection oriented transport service , there are three phases establishment, data transfer and release respectively.<\/li>\n<li>Addressing and flow control in transport layer is similar to that in the network layer.<\/li>\n<\/ul>\n<p>2. Connectionless<\/p>\n<ul>\n<li>The connectionless transport service also is very similar to connectionless network layer service.<\/li>\n<li>But, the transport layer has a upper hand. It can improve the quality of service which a network layer cannot do.<\/li>\n<li>If a transport entity is told that that it&#8217;s network connection is abruptly terminated, then it can set up a new network connection to remote the transport entity. Through this new connection , it can ask about which data arrived and which is yet to arrive.<\/li>\n<\/ul>\n<p><b>QUALITY OF SERVICE ( QoS)<\/b><\/p>\n<ol>\n<li><del><\/del>QoS can be implemented in other layers but it&#8217;s actual effect is felt in the transport layer.<\/li>\n<li>The transport layer enhanced the QoS provided by the network layer.<\/li>\n<li>The transport service may allow the user to specify preffered, acceptable and minimum values of service parameters at the time of setting up a connection.<\/li>\n<\/ol>\n<p>The typical QoS parameters for transport layer are following:-<\/p>\n<ul>\n<li><strong>Connection establishment delay<\/strong>:- The time difference between the instant at which a transport connection is requested and the instant at which it is confirmed is called as connection establishment delay. The shorter the delay the better is the service.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Connection establishment failure probability<\/strong>:- It is the probability that connection is not established even after the maximum connection delay. This can be due to the network congestion, lack of table space or some other problems.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Throughput<\/strong>:- It measures the number of bytes of user data transferred per second, measured over some time interval. It is measured separately for each direction of data flow.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Transit delay<\/strong>:- It is the time between a message being sent by the transport user on the source machine and it is \u00a0being received by the transport user on the destination machine.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Protection<\/strong>:- This parameter provides a way to protect the transmitted data from being read or modified by some unauthorized parties.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Priority<\/strong>:- This parameter provides a way for the user to show that some of it&#8217;s connection are more important than the higher ones. This is important while handling the congestions.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Resilence:-\u00a0<\/strong>\u00a0Due to congestion, the transport layer spontaneously terminates a connection. The resilience parameter gives the probability of such a termination.<\/li>\n<\/ul>\n<p><a href=\"http:\/\/www.vskills.in\/certification\/information-technology\">Click here for government certification in Information Technology<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Transport Layer Services:- The task of transport layer is to provide reliable and cost effective transport of data from source machine to destination machine. To achieve this goal , the transport layer makes use of the services provided by the network layer. What is transport entity? The hardware or software within the transport layer&#8230;<\/p>\n","protected":false},"author":876,"featured_media":37271,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[920],"tags":[5083,2576,5084,4888],"class_list":["post-36570","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-information-technology","tag-qos","tag-services","tag-transport-entity","tag-transport-layer"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>TRANSPORT LAYER (PART TWO) - Vskills Blog<\/title>\n<meta name=\"description\" content=\"Transport layer service is to provide reliable and cost effective data transport from source to destination. Take Vskills Certification. 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