Essential Snmp

by Mauro, Douglas R.; Schmidt, Kevin J.

• ISBN13: 9780596000202
• ISBN10: 0596000200
• Format: Paperback
• Copyright: 2001-06-01
• Publisher: Oreilly & Associates Inc

Summary

The Simple Network Management Protocol (SNMP) is an Internet-standard protocol for managing hosts on an IP network. "Essential SNMP is a practical introduction to SNMP for system administrators. It starts with the basics: what SNMP is and how it works, along with some technical background to help administrators use it effectively--such things as how SNMP works and what OIDs, MIBs, community strings, and traps are. But the main focus of the book is on practical network administration: how to configure SNMP agents and network management stations, how to use SNMP to retrieve and modify variables on network devices, how to configure management software to react to traps sent by managed devices. "Essential SNMP discusses a range of commercial and open source packages, including HP's OpenView, Castle Rock's SNMPc, the Net-SNMP tools, Simon Leinen's Perl SNMP support, and MRTG. The book covers all SNMP versions through SNMPv3.

Table of Contents

Preface	ix
What Is SNMP?	1	(9)
Network Management and Monitoring	1	(2)
RFCs and SNMP Versions	3	(1)
Managers and Agents	4	(2)
The Structure of Management Information and MIBS	6	(1)
Host Management	7	(1)
A Brief Introduction to Remote Monitoring (RMON)	8	(1)
Getting More Information	8	(2)
A Closer Look at SNMP	10	(33)
SNMP and UDP	10	(3)
SNMP Communities	13	(1)
The Structure of Management Information	14	(10)
Extensions to the SMI in Version 2	24	(3)
A Closer Look at MIB-II	27	(1)
SNMP Operations	28	(12)
Host Management Revisited	40	(1)
Remote Monitoring Revisited	41	(2)
NMS Architectures	43	(8)
Hardware Considerations	43	(2)
NMS Architectures	45	(4)
A Look Ahead	49	(2)
SNMP-Compatible Hardware	51	(6)
What Does SNMP-Compatible Really Mean?	51	(1)
Is My Device SNMP-Compatible?	52	(2)
Upgrading Your Hardware	54	(1)
In the End	55	(1)
A Look Ahead	55	(2)
Network-Management Software	57	(11)
SNMP Agents	58	(1)
NMS Suites	59	(3)
Element Managers (Vendor-Specific Management)	62	(2)
Trend Analysis	64	(1)
Supporting Software	65	(3)
Configuring Your NMS	68	(16)
HP's OpenView Network Node Manager	68	(12)
Castle Rock's SNMPc Enterprise Edition	80	(4)
Configuring SNMP Agents	84	(21)
Parameter Settings	84	(2)
Security Concerns	86	(1)
Agent Configuration Walkthroughs	87	(18)
Polling and Setting	105	(14)
Retrieving a Single MIB Value	105	(6)
Retrieving Multiple MIB Values	111	(4)
Setting a MIB Value	115	(2)
Error Responses	117	(2)
Polling and Thresholds	119	(29)
Internal Polling	121	(7)
External Polling	128	(20)
Traps	148	(25)
Understanding Traps	148	(1)
Receiving Traps	149	(14)
Sending Traps	163	(10)
Extensible SNMP Agents	173	(22)
Net-SNMP	174	(5)
SystemEDGE	179	(4)
OpenView's Extensible Agent	183	(12)
Adapting SNMP to Fit Your Environment	195	(26)
General Trap-Generation Program	195	(1)
Who's Logging into My Machine? (I-Am-in)	196	(2)
Throw Core	198	(4)
Veritas Disk Check	202	(4)
Disk-Space Checker	206	(11)
Port Monitor	217	(4)
MRTG	221	(16)
Using MRTG	222	(4)
Viewing Graphs	226	(3)
Graphing Other Objects	229	(3)
Other Data-Gathering Applications	232	(2)
Pitfalls	234	(1)
Getting Help	235	(2)
A. Using Input and Output Octets	237	(8)
B. More on OpenView's NNM	245	(10)
C. Net-SNMP Tools	255	(12)
D. SNMP RFCs	267	(7)
E. SNMP Support for Perl	274	(6)
F. SNMPv3	280	(11)
Index	291