Protocol stack
implementation of a computer networking protocol suite
The protocol stack or network stack is an implementation of a computer networking protocol suite or protocol family. Some of these terms are used interchangeably, but strictly speaking, the suite is the definition of the communication protocols, and the stack is the software implementation of them.
Individual protocols within a suite are often designed with a single purpose in mind. This modularization simplifies design and evaluation. Because each protocol module usually communicates with two others, they are commonly imagined as layers in a stack of protocols. The lowest protocol always deals with low-level interaction with the communications hardware. Each higher layer adds additional capabilities. User applications usually deal only with the topmost layers.
General protocol suite description
T ~ ~ ~ T
[A] [B]_____[C]
Imagine three computers: A, B, and C. A and B both have radio equipment and can communicate via the airwaves using a suitable network protocol (such as IEEE 802.11). B and C are connected via a cable, using it to exchange data (again, with the help of a protocol, for example Point-to-Point Protocol).
This brief starts where responsible research should: with the source description of “Protocol stack” as implementation of a computer networking protocol suite. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as implementation of a computer networking protocol suite. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 27, 2026. The linked authority identifier is Q1757693. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Protocol stack” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.