Computer Networks: A Systems Approach

Reviewed by Mary Hogan, Assistant Professor, Oberlin College on 6/25/25

Comprehensiveness rating: 4 see less

This text does a great job of covering all of the fundamental topics. It has comprehensive coverage of the main protocols used in networks today and the services they provide. However, some important topics are not included, and as such, this text is best used as supplemental material. For example, the text lacks sufficient discussion on middleboxes (particularly in the context of the narrow waist), bufferbloat, BGPsec, and recursive vs. iterative DNS queries. Note that there is no index or glossary, but the search tool on the online version of the textbook is helpful.

Content Accuracy rating: 5

All of the information presented in the textbook was accurate and unbiased. The authors also use real-world examples to illustrate and justify concepts.

Relevance/Longevity rating: 5

The text covers all of the fundamental topics, but also seamlessly weaves in newer technologies and developments like 5G and SDN. The text also includes a “Perspective” section at the end of each chapter that includes more up-to-date information. Separating this out from the main body of the chapter is extremely helpful, and makes it much easier to update as technology progresses.

Clarity rating: 3

Some technical terms are not defined. Most notably, the term “MAC address” is never defined - “Ethernet addresses” is used instead when first introducing MAC addresses, and the term MAC address appears later, with no context. There are also no clear definitions of the network edge or network core. Additionally, technical concepts are introduced very early, before students might have full context.

Consistency rating: 5

The text is consistent in its use of technical terminology. It also has a consistent framework, with each chapter beginning with a problem relating to network design/architecture, and the chapter then shows how we solve that problem with today’s protocols.

Modularity rating: 5

While the content of this text is not organized according to the traditional layers, it is still very modular. Each relevant topic has its own section, so it’s easy to rearrange the readings to fit into the units of a course - I have assigned individual sections as supplemental readings to students.

Organization/Structure/Flow rating: 5

The organization of this text is consistent and easy to follow. Each chapter begins with a problem that clearly frames and contextualizes the concepts to be discussed. While it strays from the traditional layered organization, it groups things in a logical way, according to the problems that various protocols/services solve. This provides a nice alternative to the layered approach that may be easier for students to understand.

Interface rating: 5

The text is available in both HTML and PDF format, and both are well-constructed and easy to navigate.

Grammatical Errors rating: 5

The text is well-written and free from grammatical errors.

Cultural Relevance rating: 5

There was nothing in the textbook that was culturally insensitive or offensive.

Comments

This book provides an excellent alternative to the traditional layered organization. The inclusion of code and the diagrams are very helpful. I recommend using this text as supplemental material to a networking course.

Reviewed by Godmar Back, Associate Professor, Virginia Tech on 12/30/21

Comprehensiveness rating: 4 see less

This book covers networks from a systems perspective, focusing on the design principles underlying the construction of large networks, their protocols and the applications they support. It provides a comprehensive coverage of the protocols and technology in use today as well as a discussion of several historically relevant protocols and applications.

However, there are areas that could use more depth in my opinion, such as the IPv4/IPv6 transition, NAT, and modern web applications, to pick three.

Content Accuracy rating: 5

The information in the book is accurate from my perspective. It is also unbiased. The primary author has made multiple seminal contributions to the field of networking that, aside from their technical merit, contributed to consensus and community building.

Moreover, the book includes "perspectives" at the end of each chapter in which the authors discuss their view of recent developments. These perspectives nicely augment and complement the factual descriptions provided by the rest of the text.

Relevance/Longevity rating: 4

The 2019 update includes a discussion of several recent developments (such as QUIC, TCP/BBR, or blockchains).

Some discussion that provides only historical context could be shortened, especially regarding technologies that were never widely deployed (e.g., IP multicast).

Clarity rating: 5

The book is well written and easily accessible. It is targeted at undergraduates in a 3rd or 4th year networking course, but could be used in a 1st graduate level course as well.

The bottom-up approach that starts with the lower layers of the networking stack makes some forward references necessary, which is unavoidable. Overall, the textbook focuses on explaining problems and then outlining the fundamental ideas underlying their solutions - rather than restricting itself to a description of only the solutions themselves.

Consistency rating: 4

Overall, the book is well written and certainly internally consistent.

A possible point of improvement would be rethink the inclusion of fragment written in a C-like language - this evokes a level of detail with respect to using the book's description for an actual implementation that it doesn't otherwise have.

Modularity rating: 4

The book is modular, devoting chapters to the layers used in networking (link layer, network layer, transport layer, etc.) as well as devoting chapters to cross-cutting issues such as security, multimedia, data representation, and so on. The size of each chapter/section is about right for the level of detail provided. I would feel comfortable assigning it to students.

Organization/Structure/Flow rating: 5

The table of contents makes it clear where to read about which topic. Because of the nature of certain topics, some subjects could be covered at multiple levels (e.g. reliable data transmission is both a link layer and a transport layer issue, routing/forwarding occurs primarily at the network layer, but also for overlay networks or switched Ethernet.) The book strikes a good balance in sorting these topics and is certain to highlight connections and relationships.

Interface rating: 4

This book is created and maintained using the Sphinx toolchain and is available as HTML, PDF, and ePub format. I read the HTML version and examined the PDF version, which results in professional quality documents that are full-text searchable and easily navigable. The authors use illustrations frequently and to good effect.

Unfortunately, some of the URLs embedded were broken (e.g., https://blockstack.org/whitepaper.pdf)

Grammatical Errors rating: 5

Perhaps unsurprisingly, aside from the (infrequent) typo, I wasn't able to spot any mistakes.

Cultural Relevance rating: 5

The emergence of the Internet has had profound cultural impact, and this book tells its story.

Comments

The book comes with 5 (online) companion books that dive even deeper into some of the topics the book covers.
It is also open for contributions by anybody, which could further improve its content and relevance in the future.

Reviewed by Cong Pu, Assistant Professor, Marshall University on 12/5/21

Comprehensiveness rating: 3 see less

This book tries to use a systematic view to explain the computer network by focusing on several major components in the Internet, so several topics have to be grouped together. For example, "Internetworking" section, it covers switch, Ethernet, IP, and outing. Actually, those topics are located in the different layers of Internet stack. Introducing all those topics which are spanned over several layers might confuse the students.

The good thing about this textbook is that there are sample codes available. The instructor can use the sample codes to explain the issue/problems of computer network, no need to write the program by themselves.

Content Accuracy rating: 4

The information and content in this textbook are relatively accurate. One thing is that this textbook did not contain many examples to explain certain topics. In that case, the instructor might need to customize the example based on the information and content of the textbook.

Relevance/Longevity rating: 3

All the topics in this textbook are definitely related to the computer networks. However, some interesting topics are not included. For example, wireless/mobile network, the layering of Internet stack, Internet of Things.

This textbook also include network security and cryptography. I am not sure whether it is the required topic for undergraduate computer network class.

Clarity rating: 4

The technical terms are properly explained in the textbook. For some major concepts, the use example is missing. Take the "Addresses" as an example, the textbook just explains the format of the address. However, it failed to explain how the different portion of address is used.

Consistency rating: 4

The presentation of textbook is consistent, and the content are well-written and easy to read.

Modularity rating: 4

The textbook groups the related topics into section, which is easier for reader to get familiar with all topics in one section. However, this design strategy also has a downside. Since different topic might be existing in the different layer of Internet stack, coving them in one section might be difficult.

Organization/Structure/Flow rating: 3

For the organization, this textbook has some places to improve. Some topics can be grouped in a more proper way.

Interface rating: 5

The content of textbook is easy to access, and navigate.

Grammatical Errors rating: 5

The textbook is well-written and easy to read.

Cultural Relevance rating: 5

The "cultural" is not relevant to this textbook.

Comments

I don't suggest the instructor adopts this textbook as a only textbook for computer network class. The reason is that this textbook does not include all required topics. Some other OER textbooks should be used along with this one.

Reviewed by Shahab Hussain, Adjunct Professor, North Shore Community College on 6/10/20

Comprehensiveness rating: 4 see less

This book presents majority of the networking critical areas and explains latest hot topics in the industry. More pictures, charts and tables can make it more attractive for students.

Content Accuracy rating: 4

This book provides an unbiased approach with all possible ways and does not specifically attached to any industry networking equipment provider other than in few real life examples.

Relevance/Longevity rating: 5

The latest version of the book contains 5G and SDN topics as well as some details of cloud networking. Due to changing technologies the future updates will be required and authors agility is appreciable so far.

Clarity rating: 5

This book presents the material with clarity, details and relevant real examples as possible

Consistency rating: 5

Authors tried their best to be focused and deliver required information with good sequence and consistency.

Modularity rating: 5

Content of this book is very well organized in chapters.

Organization/Structure/Flow rating: 5

Authors did excellent work by putting every critical area and topic in separate chapters making the flow transition smooth.

Interface rating: 5

The book's interface is well written without navigation, distortion of images / charts, or other display failures. Visual display works well.

Grammatical Errors rating: 4

Could not find any grammatical errors during review of the book text.

Cultural Relevance rating: 5

No negative impact or relation on any culture or community.

Comments

I like this book’s title and material included. This book can be an excellent reference & textbook for network related courses. I will provide with any further comments and updates necessary when I use it in class.

Reviewed by Mya T. Bowen, Assistant Professor, Roxbury Community College on 5/29/20, updated 7/14/20

Comprehensiveness rating: 4 see less

This book will be used to identify problems in the information technology industry. Every chapter presents a problem to be analyzed by students which is suitable for developing the critical thinking skills of students.

Content Accuracy rating: 4

This book provides an unbiased presentation of relevant concepts and issues with the information technology industry.

Relevance/Longevity rating: 5

This book has a copyright of 2019; based on the topics presented, the content is relevant to students considering or pursuing a career in information technology.

Clarity rating: 4

This book presents the material with clarity; any areas that may be unclear can be researched and expounded upon during class discussions.

Consistency rating: 4

This book presents consistent and relevant terminology in each chapter.

Modularity rating: 5

This book presents the material in page formats that are not overwhelming to the reader.

Organization/Structure/Flow rating: 5

This book 's structure presents a well organized, logical, and clear flow of information regarding each topic.

Interface rating: 5

The book's interface works well. I did not find any issues with navigating from page to page, or chapter to chapter.

Grammatical Errors rating: 4

This book did not present any grammatical errors that I identified while reading it.

Cultural Relevance rating: 5

The book did not present any culturally insensitive or offensive material.

Comments

I am going to use this book for my IT problem-solving course during the Fall 2020 semester; I am hoping to identify feedback from students to be added to this review in the future.

Reviewed by Yiheng Liang, Asst. Prof., Bridgewater State University on 5/27/20

Comprehensiveness rating: 5 see less

Almost all important areas in computer networks are covered in this book.

Content Accuracy rating: 5

I have not checked every word and every piece of information from this book. But from what I had looked at, this book appears to be accurate and unbiased.

Relevance/Longevity rating: 4

This book is about computer networks, of course. However, like all tech books, they will have to update with new content, e.g. SDN, 5G, ...

Clarity rating: 4

This depends on who will read the book. For me, I have no difficulty reading this book.

Consistency rating: 5

Did not see a major problem.

Modularity rating: 3

This book is a bit "heavy" for some students in computer science to follow in a single semester. It is a challenge for the instructors to pick up specific contents that will be suitable for a typical one-semester course.

Organization/Structure/Flow rating: 3

I am not sure that putting the "applications" as the last chapter is a good approach. Additionally, some terms are addressed earlier in the book, but the concept is later introduced. For example, the term "Content Distribution Networks" is mentioned in previous chapters but it is only formally introduced in chapter 9.

Interface rating: 5

The content of this book is not intended to distract or confuse the reader.

Grammatical Errors rating: 5

Did not observe any obvious grammatical error.

Cultural Relevance rating: 5

Like most tech books, this book is culturally neutral.

Comments

Lack of homework questions, lab questions, and programming assignments. This book will be better served as a reference book, not a textbook.

Reviewed by Pamela Jensen, Instructor, Minnesota State University System on 3/7/20

Comprehensiveness rating: 4 see less

The bool appears to be comprehensive, but a little wordy. Perhaps say the same thing without repetition and stay focused on the subject.

Content Accuracy rating: 5

I did not find any errors

Relevance/Longevity rating: 4

This is fairly fundamental networking, however it is a topic that changes rapidly, which is not the fault of the author

Clarity rating: 4

I understood it fairly easily, but this could be difficult depending on the audience and their ability and familiarity with the subject.

Consistency rating: 5

Nicely laid out.

Modularity rating: 5

The book is logically divided into subjects that could be used individually.

Organization/Structure/Flow rating: 4

I like how they started with the application layer of the OSI model that is the easiest to understand. I would stick with the OSI format throughout the course.

Interface rating: 4

The interface is fairly straightforward. I personally like ebooks with links to appropriate videos, but then it would not be a "textbook".

Grammatical Errors rating: 5

I did not find any errors, however I am not an English instructor.

Cultural Relevance rating: 5

This is not a cultural subject.

Comments

I would consider using part of this book in my class

Reviewed by Jon Craton, Assistant Professor, Anderson University on 2/8/20

Comprehensiveness rating: 5 see less

This book does an excellent job of covering all of the major topic areas in computer networking. It provides a good overview of networking and then dives into the details of the most important sections of the network stack.

Content Accuracy rating: 5

I found no inaccuracies of note in the content of the text.

Relevance/Longevity rating: 5

This book covers historical networking topics well. It also highlights the primary tools used in modern networked mobile and web applications (HTTPS, REST, etc) and explains the forces that have caused much of the industry to settle on these tools. This book should remain relevant for years, especially if it continues to be regularly updated.

Clarity rating: 4

There's a lot of jargon in computer networking, but this book does a good job of recognizing this and carefully introducing new terms. It could perhaps benefit from an index of important terms and acronyms.

Consistency rating: 4

I found the book to be consistent throughout. I think that it could benefit from using a structure and set of chapter names the connect more tightly to established layers of the one of the common network stack models, or simply being more upfront in defining its own view into the network stack to provide readers more direction on where the text is headed and what content is found in each chapter.

Modularity rating: 5

The text is well structured to be divided into course topics.

Organization/Structure/Flow rating: 5

The book begins with a high-level overview of networked application and then explores the network stack from the bottom up. This is the approach that several other texts use, and I find it to be a clear way to teach the content.

Interface rating: 5

I had no problems viewing or navigating the text or figures.

Grammatical Errors rating: 5

The text appears to be well edited and largely free of grammatical errors.

Cultural Relevance rating: 5

I did not note any content in the text that I found to be inappropriate or offensive nor any content that I would expect is probable to offend others.

Comments

Overall, this is a helpful text that provides a good overview of the most important concepts in computer networking and could be easily applied for teaching and learning this topic.