Tag: Flow control

Diagram of TCP three-way handshake process showing SYN, SYN-ACK, and ACK exchanges between two hosts for connection establishment.
CCNA September 2, 2019

Understanding TCP Three-Way Handshake: A Comprehensive Guide (Updated 2025)

In networking, the TCP three-way handshake (often called a “TCP conversation”) establishes reliable connections, which is crucial for Access Control Lists (ACLs) to filter traffic effectively. ACLs manage inbound and outbound traffic based on IP addresses, ports, and TCP flags. This article explains TCP fundamentals before diving into ACL integration, helping CCNA students grasp transport […]
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CCNA May 27, 2019

Transmission Control Protocol (TCP)

The Transmission Control Protocol (TCP) is a network communication protocol designed to send data packets over the Internet. It is a transport layer protocol in the OSI model. It creates a connection between remote computers by transporting and ensuring the delivery of messages over supporting networks and the Internet. When the application layer requires sending […]
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