Tag: protocol

DCCP – Datagram Congestion Control Protocol

DCCP transport layer protocol is used to control the datagram congestion. It provides an excellent procedure to stop the internet fall down, if it is caused by the congestion. In fact, this protocol is a brilliant competitor to be used as a substitute of UDP protocol.

DCCP account DCCP congestion control trait by means of a reliable acknowledgments delivery (in form of packets instead of bytes) will provide actually a congestion control with dynamism. DCCP will also make available the negotiable blocking control mechanism, but it will be up to the particular application’s specific requirements too. Moreover, these mechanisms come with a number of specific features, so to go well with different types of applications. The bandwidth consumption can be enhanced as the size of packets in case of DCCP is increased.

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SAP – Session Announcement Protocol

Session Announcement Protocol as an experimental protocol designed for the purpose of multicasting a session’s information. IETF issued it as RFC 2974. SDP (Session Description Protocol) is being used by SAP as real-time transport protocol’s session depiction arrangement. With SAP use, correspondent can transmit SDP descriptions from time to time to an acknowledged multicast address and also to port.

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How we open a web page – what is going on behind?

Open a web page, here we will see  how is this happening in the system.  TCP/IP protocol is what makes sending and receiving of data across the internet from some remote server or remote end user. But how data knows how to find us and how we know how to find the IP addresses of the web servers where are the pages saved? Data is not even going on the same way when we send something (a request) to the server, and the server response in shape of data flowing to our computer. Internet is big system that knows in every moment how to find the best route to some device connected somewhere in between all this nodes. But how is this data traveling across the wires, fibers and air? Data is divided in small packets. Every time we send a request to a server, our request first must be divided in smaller packets of the same size and then they are going to DNS – domain name server that will have the information of direction in which direction request must be forwarded. DNS have the knowledge of IP addresses for all URLs that are registered on the internet, and with this database he can translate our request for webpage in the same request but pointed to IP address of the server on which the webpage is stored.

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