TCP Header Flags
Explore the role of TCP header flags in managing connections and data transfer. Understand how flags like ACK, SYN, FIN, RST, PSH, URG, CWR, and ECN work to establish, maintain, and terminate TCP connections and handle network congestion.
We'll cover the following...
We'll cover the following...
TCP headers have eight 1-bit flags that are imperative to signaling in the protocol.
Each 1-bit flag is crucial to make the protocol work.
Flags
Let’s have a quick look at what each flag is meant for.
The eight flags used in TCP headers.
The first four discussed below, namely ACK, RST, SYN, and FIN are used in the establishment, maintenance, and tear-down of a TCP connection.
ACK
This flag is set to in a segment to acknowledge a segment that was received previously. This is an important ...