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What is Transfer Control Protocol or Transmission Control Protocol (TCP)? | DDI (Secure DNS, DHCP, IPAM) | Infoblox Skip to content Home Glossary What is Transfer Control Protocol or Transmission Control Protocol (TCP)? What is Transfer Control Protocol or Transmission Control Protocol (TCP)? Transfer Control Protocol or Transmission Control Protocol (TCP) is one of the core protocols of the Internet Protocol suite, TCP is one of the two original components of the suite, complementing the Internet Protocol (IP), and therefore the entire suite is commonly referred to as TCP/IP. TCP provides reliable, ordered delivery of a stream of bytes from a program on one computer to another program on another computer. TCP is the protocol that major Internet applications such as the World Wide Web, email, remote administration, and file transfer rely on.
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