UDP and TCP protocols come into play with VoIP because they structure the way web traffic travels through the Internet. TCP and UDP packets are sent from a source to your phone or computer, and if any of these packets are dropped, it will affect the quality of your call. Voices will crackle, static will emanate, and frustration will build.
Mar 02, 2011 · TCP does reliability for you. UDP lets you implement whatever form of reliability you want in the application. For DNS, you can do a much better job implementing DNS-specific forms of reliability. For example, if you have multiple nameservers, just move on to the next one instead of trying to retransmit packets to the first one that fails. UDP takes datagram from Network Layer, attach its header and send it to the user. So, it works fast. Actually UDP is null protocol if you remove checksum field. When to use UDP? Reduce the requirement of computer resources. When using the Multicast or Broadcast to transfer. The transmission of Real-time packets, mainly in multimedia applications. The TCP protocol requires that a packet that was not delivered must be check, verified and redelivered. UDP does not use this requirement. So if you sent a file which contains millions of packets using UDP, like a video, if some of the packets are missing upon delivery, they will most likely go unmissed. Feb 09, 2009 · With TCP this is handled in the network stack and thus takes the responsibility out of the hands of the application. Thus TCP tends to be more simple to program in than UDP. Generally you'll use TCP unless there is a reason that UDP is more beneficial. Jun 26, 2014 · As to why you can't use only one protocol, TCP or UDP, the answer has to do with the engineering choices made by the designers of SQL Server. Perhaps it will help if we look at the difference between the two protocols. You can't use TCP over Mcast since TCP is session based. As you stated UDP is the protocol of choice for Mcast applications. Other non session based protocol such as IGMP, OSPF, EIGRP, RIP also use Mcast for message delivery. In addition, UDP is used for some routing update protocols, such as the Routing Information Protocol (RIP). UDP can be used in applications where speed rather than reliability is critical. Why would you use UDP instead of TCP? Because UDP does not employ congestion control, but TCP does, it can take away capacity from TCP that yields to UDP flows.
Oct 01, 2008 · UDP stands for “user datagram protocol” and it’s another protocol built on top of IP, but unlike TCP, instead of adding lots of features and complexity, UDP is a very thin layer over IP. With UDP we can send a packet to a destination IP address (eg. 112.140.20.10) and port (say 52423), and it gets passed from computer to computer until it
7. TCP vs. UDP. Why would an application use UDP as oppose to TCP and why would an application select to use TCP as oppose to UDP? Explain through example applications; give an example that uses UDP and one that uses TCP and explain why the application uses indicated transport a. Name an application that uses UDP b. 1. TCP versus UDP. a. Describe why an application developer might choose to run an application over UDP rather than TCP. An application developer may not want its application to use TCP’s congestion control, which can throttle the application’s sending rate at times of congestion.
Different Applications of TCP and UDP Web browsing, email and file transfer are common applications that make use of TCP. TCP is used to control segment size, rate of data exchange, flow control and network congestion. TCP is preferred where error correction facilities are required at network interface level.
UDP and TCP protocols come into play with VoIP because they structure the way web traffic travels through the Internet. TCP and UDP packets are sent from a source to your phone or computer, and if any of these packets are dropped, it will affect the quality of your call. Voices will crackle, static will emanate, and frustration will build.