Essential SNMP, Second Edition |  | Authors: Douglas R Mauro Douglas, Kevin Schmidt
Publisher: O'Reilly Media
Category: Book
List Price: $49.95
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Rating:  21 reviews
Sales Rank: 41842
Media: Paperback
Edition: 2
Pages: 464
Number Of Items: 1
Shipping Weight (lbs): 1.6
Dimensions (in): 9.1 x 7 x 1.2
ISBN: 0596008406
Dewey Decimal Number: 005
EAN: 9780596008406
ASIN: 0596008406
Publication Date: September 21, 2005
Availability: Usually ships in 1-2 business days
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Amazon.com Review
Without Simple Network Management Protocol (SNMP), network administrators might have to actually get out of their chairs and go see what's up with all of the network-connected equipment under their authority. Perish the thought. Essential SNMP explains how the management protocol works and how it's implemented by several operating systems and pieces of equipment. More importantly, this book shows its reader--who should be a network administrator who's familiar with the problems of running a distributed network--how SNMP can earn its place as a network administration tool. In other words, this book examines SNMP as a strategic resource as well as a technical phenomenon.Because it's oriented toward SNMP as a tool, much of the coverage in this book has to do with software that uses SNMP to provide network monitoring and control services. After a strengths-and-weaknesses overview of a number of SNMP packages, the authors use mainly HP OpenView, Castle Rock SNMPc, and Net-SNMP (the last in combination with Perl scripting) to demonstrate how SNMP works and how to take advantage of it. It's the scripting that really distinguishes this book from other SNMP books, by the way. It's integral to the authors' presentation, and the latter half of this book is packed with shell and Perl listings. --David Wall Topics covered: Simple Network Management Protocol (SNMP) and its applicability as a network management tool. Details like object identifiers (OIDs), management information bases (MIBs), traps, and community strings are defined and explained. The configuration of SNMP agents is detailed for several software packages and operating systems, and the integration of SNMP and scripts (in shell languages and in Perl) is covered nicely.
Product Description
Simple Network Management Protocol (SNMP) provides a "simple" set of operations that allows you to more easily monitor and manage network devices like routers, switches, servers, printers, and more. The information you can monitor with SNMP is wide-ranging--from standard items, like the amount of traffic flowing into an interface, to far more esoteric items, like the air temperature inside a router. In spite of its name, though, SNMP is not especially simple to learn.
O'Reilly has answered the call for help with a practical introduction that shows how to install, configure, and manage SNMP. Written for network and system administrators, the book introduces the basics of SNMP and then offers a technical background on how to use it effectively. Essential SNMP explores both commercial and open source packages, and elements like OIDs, MIBs, community strings, and traps are covered in depth. The book contains five new chapters and various updates throughout. Other new topics include: - Expanded coverage of SNMPv1, SNMPv2, and SNMPv3
- Expanded coverage of SNMPc
- The concepts behind network management and change management
- RRDTool and Cricket
- The use of scripts for a variety of tasks
- How Java can be used to create SNMP applications
- Net-SNMP's Perl module
The bulk of the book is devoted to discussing, with real examples, how to use SNMP for system and network administration tasks. Administrators will come away with ideas for writing scripts to help them manage their networks, create managed objects, and extend the operation of SNMP agents. Once demystified, SNMP is much more accessible. If you're looking for a way to more easily manage your network, look no further than Essential SNMP, 2nd Edition.
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| Customer Reviews:
Showing reviews 1-5 of 21
 Perfect for SNMP beginners and complicated networks August 16, 2001
Mark Lyman (SLC UT USA)
46 out of 46 found this review helpful
I have been doing network/router/system administration for about 3 years, and I have never really had the time/opportunity/need to do SNMP. Our network grew to be very large very quickly (sites in africa, england, germany, canada, america) and it became neccesary to use SNMP to ease the administration somewhat. I first bought "A practical guide to SNMPv3 and Network Management" and could barely get past page 8 before I was totally lost. So I came back looking for "21 days" or "SNMP for dummies" book of which there are none. I found this book which recommends a good grasp of TCP/IP and that is about it. I have found this book to be the best book out there for someone with 0 to little experience with SNMP. It brought me all the way from ground 0 knowledge of SNMP to managing a network of about 100 routers with SNMP, including detecting DoS attacks, processor overload, interface changes, config changes etc.I highly recommend this to anyone who is looking for a practical SNMP managed network, beginner or advanced.
Excellent ! September 29, 2003
Jason Briggs (USA)
7 out of 7 found this review helpful
I was transferred to Manage a networking group in my company knowing barely the basics about SNMP. This book was a fantastic tool for me! I rely on it heavily. This book has enabled me to take monitoring to the next level. The only problem I seem to have with the book is keeping it on my desk. All the network analysts constantly are using it. Thanks Doug and Kevin for allowing me to excel to a higher level.....
Good SNMP Resource December 18, 2001
Todd Hawley (San Francisco CA)
6 out of 6 found this review helpful
Having a little familiarity with SMNP, I looked forward to reading this book. I wasn't disappointed as it's well-written and filled with excellent information, which I've always found to be true of O'Reilly books. What I enjoyed a lot about this book was its general look first off at what SMNP is, why it's important, SMNP managers and agents, how it in most cases works better with UDP as opposed to TCP, etc.This book also describes the various types of Network Management Services architectures, the compatible hardware and network management software available, how to configure specific SMNP agents to monitor a specific device on a network, and how polling works, among other topics. As always with O'Reilly books, there's a wealth of reference information at the back of the book (for example, Using Input and Output Octects, command line tools, and a list of SNMP RFC's to refer to for more information). If you're a sys admin or anyone else desiring to learn more about SMNP, this book covers a lot of important SMNP information.
Great book on SNMP starts from the beginning February 20, 2007
calvinnme
5 out of 5 found this review helpful
I hadn't seen a new book on SNMP come out in some time, and the older ones I had read were so abstract and unhelpful that I was reluctant to try another one. This book, though not perfect, is much better than the older books I have looked at on the subject. For one thing, it just didn't dive into the subject with a bunch of confusing graphs and object trees assuming I already knew the big picture.
Chapter one is just a general introduction to SNMP and network management. Chapter 2 goes into details on both SNMPv1 and SNMPv2. It talks about how SNMP sends and receives information, how to read MIB files, and about SNMP communities. It looks in detail at three MIB's - MIB-II, Host Resources, and RMON. MIB-II is a very important management group because every device that supports SNMP must also support MIB-II, thus objects from MIB-II are used in examples through the whole book. Chapter 3 introduces SNMPv3, which addresses the security problems present in v1 and v2.
Next the book introduces the idea of a network management architecture. It stresses that you need a plan that helps you use Network Management Stations (NMS's) effectively in order to effectively manage your network. This section includes how to properly choose your hardware and what questions you need to ask yourself. Next the book discusses actually installing and running your software. Specifically HP's OpenView Network Node Manager and Castle Rock's SNMPc Enterprise Edition are discussed. Included are detailed instructions along with screenshots of the application. Next there are instructions on how to configure SNMP agents. You are walked through some standard configuration parameters plus some advanced parameters that sometimes crop up. Once again there are plenty of screen shots to help you know you are on the right path.
Now that you've been walked through the configuration of your system and the installation of software, the book shows you how to use the three basic SNMP operations of snmpget, snmpset, and snmpwalk. A group of Perl scripts are shown that set, get, and walk objects. Next HP OpenView and Net-SNMP are used to perform the same operations from the command line. A third alternative is demonstrated that uses OpenView's graphical MIB Browser. Next is a discussion of how to set up SNMP to poll your devices at certain intervals and to set thresholds that require action if crossed. Again Perl scripts enter the discussion for configuring this set-up. SNMPc and OpenView screen shots show you how to configure this using graphical interfaces, and what to expect. Next the book discusses traps, which are how an agent sends a monitoring station asynchronous notification about certain key conditions that may require action. The book demonstrates how to handle traps using OpenView and Perl scripts. Next the book shows how to read, configure, and even define your own traps.
The book now turns to the problem of agents that need to be extended in their abilities. The book discusses the answer to this problem - extensible SNMP agents - and three of them in particular - the OpenView, Net-SNMP, and SystemEdge agents. Next are some interesting scripts for automating common system administration tasks. Issues covered by these little scripts include determining who is logging into your machine, a port monitor, service monitoring, and switching port control, among others. There is then a discussion on MRTG (Multi Router Traffic Grapher), a trend analysis tool that generates image files and whose output is viewable from a web browser. Complete instructions on installing and using the tool are given. The next tool discussed is RRDtool, which in network management will most likely be used to store and process data collected via SNMP. However RRDtool can be used for many diverse purposes that have nothing to do with computer networks. The last chapter in the book is an odd one on using Java with SNMP. Specifically, the book presents the Java SNMP API known as SNMP4J. It doesn't really seem to add any functionality other than being an alternative for people who don't like to use Perl.
I liked this book very much. It had many good examples and it answered all of the questions I had previously had on SNMP starting from the beginning with what is SNMP and what can it do for you? I would highly recommend it to any network administrator who is planning on workng with SNMP.
Excellent SNMP intro for beginners February 27, 2005
JR
3 out of 3 found this review helpful
I got HP OV NNM 7.5 started at work on a rush due to the need of increasing proactive response to the regular problems. This book, even based on old versions of the software I have in hand came up to be very straight to the point and was full of examples that aid me to realise how SNMP works. Even when you are a seasoned sysadmin/netadmin you happen to be off the road with topics of paramount importance such as SNMP. Don't be afraid of the age, this book is great for the price, and the authors made it big. Five stars...
Showing reviews 1-5 of 21
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