Basic Dial NMS Implementation Guide
Table Of Contents
- Preface
- Overview of Basic SNMP Building Blocks
- Network Design for a DialNMSCase Study
- Dial MIBs and OIDs Used in the Case Study
- Task 1—Enabling SNMP in a Cisco IOS Device
- Task 2— Exploring SNMP Capabilities by Using UCD-SNMP
- Task 3—Using MRTG to Monitor and Graph Traffic Loads
- Task 4—Using Syslog, NTP, and Modem Call Records to Isolate and Troubleshoot Faults
- Task 5—Setting Up a Web Portal forthe DialNMS
- Task 6—Managing IP Addresses by Using DNS
- Task 7—Using HP OpenView to Create the SNMP Framework
- Task 8—Using CiscoWorks 2000 Resource Manager Essentials
Overview of Basic SNMP Building Blocks
What are SNMP MIBs?
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Basic Dial NMS Implementation Guide
Figure 2 SNMP Event Interactions Between the NMS and the Agent
What are SNMP MIBs?
A Management Information Base (MIB):
Presents a collection of information that is organized hierarchically.
Is accessed by using a network-management protocol, such as SNMP.
References managed objects and object identifiers.
Managed object
—A characteristic of a managed device. Managed objects reference one or more object
instances (variables). Two types of managed objects exist:
Scalar objects—Define a single object instance.
Tabular objects—Define multiple-related object instances that are grouped together in MIB tables.
Object identifier
(or object ID)—Identifies a managed object in the MIB hierarchy. The MIB hierarchy
is depicted as a tree with a nameless root. The levels of the tree are assigned by different organizations
and vendors.
Agent
(Cisco IOS device)
NMS
NMS
initiated
Trap (agent initiated)
Get request
Get next
Get next
Response
Response
Response
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