Learn The Difference Between TCP And UDP In Networking
Transmission Control Protocol (TCP)
Transmission Control Protocol (TCP) is connection-oriented, meaning once a connection has been established, data can be transmitted in two directions. TCP has
built-in systems to check for errors and to guarantee data will be
delivered in the order it was sent, making it the perfect protocol for
transferring information like still images, data files, and web pages.
But while TCP is
instinctively reliable, its feedback mechanisms also result in a larger
overhead, translating to greater use of the available bandwidth on your
network.
User Datagram Protocol (UDP)
User Datagram Protocol (UDP) is a simpler, connectionless Internet protocol wherein error-checking and recovery services are not required. With UDP,
there is no overhead for opening a connection, maintaining a
connection, or terminating a connection; data is continuously sent to
the recipient, whether or not they receive it.
Although UDP isn’t
ideal for sending an email, viewing a webpage, or downloading a file,
it is largely preferred for real-time communications like broadcast or
multitasks network transmission.
Differences between TCP and UDP
- TCP is a connection-oriented protocol, whereas UDP is a connectionless protocol.
- The speed for TCP is slower while the speed of UDP is faster.
- TCP uses handshake protocols like SYN, SYN-ACK, ACK while UDP uses no handshake protocols.
- TCP does error checking and also makes error recovery, on the other hand, UDP performs error checking, but it discards erroneous packets.
- TCP has acknowledgment segments, but UDP does not have any acknowledgment segments.
- TCP is heavy-weight, and UDP is lightweight.
TCP vs UDP Speed
The reason for UDP’s superior speed over TCP is that its non-existent ‘acknowledgment’ supports a continuous packet stream. Since a TCP connection
always acknowledges a set of packets (whether or not the connection is
totally reliable), retransmission must occur for every negative
acknowledgment where a data packet has been lost.
But because UDP avoids the unnecessary overheads of TCP transport, it’s incredibly efficient in terms of bandwidth, and much less demanding of poor-performing networks, as well.
إرسال تعليق