Shows network professionals how to design, define, write and update useful SNMP Management Information Bases (MIBs) that support standards-based network management.Introduces SNMP MIBs, documents that contain definitions of management information which allow systems to be remotely monitored, configured and controlled. Presents a model of an SNMP-based management network and defines the SNMP management framework. Walks through the construction of MIBs, including name space organization, MIB naming, maintenance, object semantics and object style, and othe topics. Presents advanced techniques, including tables within tables, multi-table relationships and linked lists. Shows how to analyze standard MIBs. Discusses front-end and back-end MIB compilers, including SMIC, NetView/6000 SunNet Manager and HP OpenView. Includes a guide to MIB developer's resources. Anyone involved in building systems that must be compliant with the Simple Network Management Protocol (SNMP), the leading international standard for network management.
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The first complete, practical insider's guide to writing SNMP MIBs. With this book, network professionals can learn how to design, define, write and update useful SNMP Management Information Bases (MIBs) that support standards-based network management. The book introduces SNMP MIBs -- documents that contain definitions of management information which allow systems to be remotely monitored, configured and controlled. Next, it presents a model of an SNMP-based management network and defines the SNMP management framework. Readers will walk through the construction of MIBs, including name space organization, MIB naming, maintenance, object semantics and object style, and other topics. Advanced techniques are presented, including tables within tables, multi-table relationships and linked lists. Readers learn how to analyze standard MIBs. Front-end and back-end MIB compilers are discussed, including SMIC, NetView/6000 SunNet Manager and HP OpenView. The book also includes a guide to MIB developer's resources.
From the Inside Flap
The Berkeley California philosopher Ashleigh Brilliant once wrote, “The world is controlled by a small, evil group to which no one I know belongs.” If it seems that the rules and subtleties of writing an SNMP MIB are controlled by the same secretive group, you're not alone. Until now there has been little guidance provided on how to write, read, and use MIBs.
In a nutshell, MIBs are specifications containing definitions of management information so that network systems can be remotely monitored, configured, and controlled.
The standards bodies involved have formal documents that state the set of rules which must be followed in writing MIBs. The rules are written in an adapted sub-set of an obsolete version of a specification language called Abstract Syntax Notation One (ASN.1). These documents are almost unreadable, since the ASN.1 language is intended more for machine processing than human comprehension. Also, no one has yet provided a style guide for MIB writers, or an answer book for MIB readers. The unfortunate result has been that understanding MIBs often comes down to learning the oral folklore, or worse, reading the endless stream of email on a large number of IETF mailing lists. Unfortunately, much of this email and other information made available on the Internet is not quite correct.
As a result, many MIB writers end up reinventing the wheel, using conflicting techniques, simply because the authors didn't know about a precedent in another MIB, or writing incorrect MIBs. Thus, understanding MIBs requires careful and detailed reading to determine the intent of the author.
There has been enormous growth in recent years in the development of SNMP-based management stations, as well as a flood of MIBs from both vendors and international standards bodies. These MIBs are the language of network and applications management.
Whether you are a network manager trying to manage devices from numerous vendors, a test engineer putting together a test plan, or a product manager writing a data sheet, it may indeed seem as if all MIBs were written by a small, evil group of which you're not a part. If you are going to be involved with network management anywhere along the chain, understanding MIBs is quickly becoming a requirement. Whether you are a designer or user of MIBs, this book was written so you, too, can get some real work done, and not waste time learning the initiation rites of this small, evil group.
The Scope Of This Book
There are a number of excellent books already in print that attempt to provide an overview of the entire Network Management universe; there are also several excellent texts specifically focusing on the Simple Network Management Protocol (SNMP) in all of its deceiving simplicity.
This book is different, in that it focuses on the key aspects of SNMP-based management that you must know to allow you to first, read and understand existing MIBs, and then (if you are so inclined) design, define, and write useful, compliant MIBs for your own devices or applications.
The process of understanding MIBs is often confused with understanding the protocol. Naturally, the two are related, but understanding a MIB doesn't require that you have detailed knowledge of the inner workings of the protocol. Its definition and operation are fixed and can be treated as a “black box.” Understanding MIBs requires only a high level understanding and not in-depth knowledge of the protocol. This book gives you enough of an introduction to SNMP that you can understand what will be going on with the protocol, and how it relates to good MIB design.
Also confused with writing a MIB are the tasks of writing the code that makes available, or uses, specific instances of management information defined in a MIB. These are separate tasks, which may be performed by the same individual. This book introduces the concepts needed for development of an agent or management application, but is not a tutorial on these tasks. That information is provided by vendors of agent and management application development systems.
A summary of all the elements of SNMP is provided as appendices so you will have one reference source for what you need to know to do useful work.
Who Should Read This Book
This book was written with three main audience groups in mind:
-- Network administrators (and end-users), who cannot change the network information that is available to them, but would like to be able to read and understand the manageable aspects of their network.
-- Personnel of network component vendors (which includes agent and application developers, test engineers, and product managers), who must be able to define and create software based on the management aspects specified in existing MIBs, create new MIB specifications for management elements that have not yet been standardized, test that the implementations are compliant, and find creative ways to differentiate products that are based on standardized specifications.
-- Students, who can use this book to complement introductory texts on SNMP, or as the primary source in a project-oriented class to apply network management.
Our Credo
This book contains facts, our experiences, and our beliefs tempered by the comments of our reviewers. A primary result of our experiences in network management is the following belief, which we call the Fundamental Axiom of Technology, and is our credo.
The impact of learning about a technology must be minimal, and must not stand in the way of applying the technology.
We believe the burden of communicating the concepts and applications of a technology should be on the creators and proponents of the technology and not on the users of the technology. Please let us know how we did after you have read the book.
In a nutshell, MIBs are specifications containing definitions of management information so that network systems can be remotely monitored, configured, and controlled.
The standards bodies involved have formal documents that state the set of rules which must be followed in writing MIBs. The rules are written in an adapted sub-set of an obsolete version of a specification language called Abstract Syntax Notation One (ASN.1). These documents are almost unreadable, since the ASN.1 language is intended more for machine processing than human comprehension. Also, no one has yet provided a style guide for MIB writers, or an answer book for MIB readers. The unfortunate result has been that understanding MIBs often comes down to learning the oral folklore, or worse, reading the endless stream of email on a large number of IETF mailing lists. Unfortunately, much of this email and other information made available on the Internet is not quite correct.
As a result, many MIB writers end up reinventing the wheel, using conflicting techniques, simply because the authors didn't know about a precedent in another MIB, or writing incorrect MIBs. Thus, understanding MIBs requires careful and detailed reading to determine the intent of the author.
There has been enormous growth in recent years in the development of SNMP-based management stations, as well as a flood of MIBs from both vendors and international standards bodies. These MIBs are the language of network and applications management.
Whether you are a network manager trying to manage devices from numerous vendors, a test engineer putting together a test plan, or a product manager writing a data sheet, it may indeed seem as if all MIBs were written by a small, evil group of which you're not a part. If you are going to be involved with network management anywhere along the chain, understanding MIBs is quickly becoming a requirement. Whether you are a designer or user of MIBs, this book was written so you, too, can get some real work done, and not waste time learning the initiation rites of this small, evil group.
The Scope Of This Book
There are a number of excellent books already in print that attempt to provide an overview of the entire Network Management universe; there are also several excellent texts specifically focusing on the Simple Network Management Protocol (SNMP) in all of its deceiving simplicity.
This book is different, in that it focuses on the key aspects of SNMP-based management that you must know to allow you to first, read and understand existing MIBs, and then (if you are so inclined) design, define, and write useful, compliant MIBs for your own devices or applications.
The process of understanding MIBs is often confused with understanding the protocol. Naturally, the two are related, but understanding a MIB doesn't require that you have detailed knowledge of the inner workings of the protocol. Its definition and operation are fixed and can be treated as a “black box.” Understanding MIBs requires only a high level understanding and not in-depth knowledge of the protocol. This book gives you enough of an introduction to SNMP that you can understand what will be going on with the protocol, and how it relates to good MIB design.
Also confused with writing a MIB are the tasks of writing the code that makes available, or uses, specific instances of management information defined in a MIB. These are separate tasks, which may be performed by the same individual. This book introduces the concepts needed for development of an agent or management application, but is not a tutorial on these tasks. That information is provided by vendors of agent and management application development systems.
A summary of all the elements of SNMP is provided as appendices so you will have one reference source for what you need to know to do useful work.
Who Should Read This Book
This book was written with three main audience groups in mind:
-- Network administrators (and end-users), who cannot change the network information that is available to them, but would like to be able to read and understand the manageable aspects of their network.
-- Personnel of network component vendors (which includes agent and application developers, test engineers, and product managers), who must be able to define and create software based on the management aspects specified in existing MIBs, create new MIB specifications for management elements that have not yet been standardized, test that the implementations are compliant, and find creative ways to differentiate products that are based on standardized specifications.
-- Students, who can use this book to complement introductory texts on SNMP, or as the primary source in a project-oriented class to apply network management.
Our Credo
This book contains facts, our experiences, and our beliefs tempered by the comments of our reviewers. A primary result of our experiences in network management is the following belief, which we call the Fundamental Axiom of Technology, and is our credo.
The impact of learning about a technology must be minimal, and must not stand in the way of applying the technology.
We believe the burden of communicating the concepts and applications of a technology should be on the creators and proponents of the technology and not on the users of the technology. Please let us know how we did after you have read the book.
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Most Helpful Customer Reviews
19 of 19 people found the following review helpful:
3.0 out of 5 stars
NOT for Beginners!,
By A Customer
This review is from: Understanding SNMP MIBs (Paperback)
I have read a pretty good portion of this book, but I just can't continue. My task at work is to learn about SNMP and start monitoring our equipment. This is a simple task that should be fairly straightforward. Unfortunately, I haven't found any two resources that can even agree on the definition of a MIB. Not even this book, one that's dedicated to MIBs, has helped me out. If you're looking for a good beginner's guide, don't waste your money on this book. If you don't know where to begin to compile MIBs, don't buy this book. Unless you deeply understand SNMP and are to the point where you feel you have to write MIBs, don't buy this book. You'll be sadly disappointed. I'm sure this is a wonderful book for the right audience, and I respect the authors for their technical abilities. My problem is not with the book, but with the way the book is marketed within the SNMP community.
13 of 13 people found the following review helpful:
2.0 out of 5 stars
You better know SNMP before you read this book.,
By A Customer
This review is from: Understanding SNMP MIBs (Paperback)
I've been working with networks for almost a year now, a relative new comer to the field. However, I'm a degreed engineer from a pretty good school, and I've worked as an engineer for over six years. This book is for people who have worked with SNMP extensively for a number of years. This is definitely not an intro book, nor is it for anybody who just wants to gain a basic understanding of SNMP. I was lost after the second chapter.
10 of 10 people found the following review helpful:
5.0 out of 5 stars
Worth the Money,
By Terrence (USA) - See all my reviews
This review is from: Understanding SNMP MIBs (Paperback)
I have read and reviewed most of these SNMP books. In general, they are not very good. This one is EXCELLENT. However, it is definitely for people developing mibs and not somebody looking to understand how SNMP works. It is a resource as an SNMP developer I could not live without.
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