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Table of Contents
1. The NNM Project Deployment
Plan
Determining the Requirements that NNM
Must Satisfy
Sharing project plans and information on a web site
Drafting, defining, and finalizing an operations agreement
Choosing Scalable Hardware at each NNM site
Setting the Scope and Conducting a Pilot Test.
Identifying, Developing, or Buying NNM training
Defining Management Domains
Planning for Ongoing Problem Resolution
Planning for System, Database, and Map Backup and Recovery
Benefit of Using ITO for NNM System Management
The Value of Consultants, System Administrators, and Project
Managers
The Victory Celebration
Planning for Operational Patching and Upgrading
2. Planning a Robust Domain
Name System
Why DNS is so Important to NNM
The History of /etc/hosts
Router Interfaces and DNS
Reliability Designs for DNS
The Purpose and Use of Delegation
Sample DNS Configuration Files
Loading Factors for DNS systems
NNM Caching
Primary, Secondary, and other Mysteries
The Bigger Picture of a DNS Implementation
3. Defining the Management
Domain
Determining the Communities of Interest
in a Network
Geographic Regions and Business Relationships
Estimating the Size of a Management Domain
Strategies for Defining and Discovering the Management Domain
Configuration Files for Controlling the Management Domain
4. The Excitement of First
Discovery
Discovery Without a Seedfile
Manually Guided Discovery
Discovery Guided by a Seedfile
Demand Poll to Coax Along Discovery
The Curse of Multiple SNMP Community Strings
DNS Problems
Fine Tuning the Discovery Filter
Tuning and Observing netmon Queues
My Window is Full of Icons
Strategies for Containerizing the Internet submap
Saving Map Customizations
Leveraging Lessons Learned With Other Map Builders
5. Map Management Strategies
Where The Read/Write Map is Displayed
Managing Map Customizations
Using Autolayout and Overlay Features
How NNM Uses the Repeater and Bridge MIBs
Third Party Map Management Tools
Taking Screen Shots of Maps
Special Types of Network Devices
6. Distributed Network
Management
The Management Station and Collection
Station Relationship
Configuring the Collection Station
Deciding What Devices to Export
Management Station SNMP Data Collection
Monitoring NNM Systems With ITO and MeasureWare
Configuring the Management Station.
Adding a New Collection Station to an Operational Management
Station
Impact on a Management Station of Rebuilding a Collection Station
7. Configuration Management
With NNM
Nuggets in the Configuration Alarms
Category
Gold in ovtopodump
Configuration Information Presented in NNM Maps
Interface Information
Creating Custom Menu Items
8. Event Management With
NNM
Managed vs. Unmanaged Devices
Traps From Expected and Unexpected Sources
Syslog Streams from Devices and ovevent
Predefined and Custom Alarm Categories
Customizing Event Actions
Managing Event Histories and trapd.log
Reducing Event Storms with ECS
9. Performance Management
with NNM
Who Needs Performance Data
Providing Data for an SLA
Determining Performance Data Retention Intervals
Estimating SNMP Data Sample Rates
The Heisenberg Uncertainly Principle of SNMP Polling
How Much Traffic Does NNM Create
SNMP Performance Data in MIB2 and Private MIBs
Strategies for Setting Threshold Values
How to Create MIB Expressions
Viewing Performance Data On-line
Presenting Performance Data to the Consumer
SNMPv2c and 64-bit Counters
Collecting RMON Data
Crossing Over into HP NetMetrix
Capacity Planning
10. Managing Firewall Environments
With NNM. 195
Defining the DMZ Environment
Working With the Corporate Security Group
Special Security Configuration for UNIX in the DMZ
Firewalls and NNM Port Usage
Router Access Control Lists and NNM
Packet Filtering With a Router
Accessing NNM Remotely
11. Periodic Maintenance
Tasks for NNM
Using Crontab Entries to Automate Backups
Determining the Scope of the Backup
Database Repairing
Moving Newly Discovered Devices to Their Proper Container
Backing Up Map Customizations
Updating MIBs for New Devices
Deleting Unwanted Maps
Reviewing Configuration Alarms
Perusing Log Files and Application Alarms
Reviewing Measureware Data
Perusing and Updating ITO Alarms
12. A Day With NNM
Custom Performance Management
Testing an NNM Patch
Verify Correct Menu Operation
Validate a New Procedure
Testing Third Party Applications
Validate Operating System Changes
Conducting Directed Discovery
Creating a Special Purpose Map
NNM and Routers
13. Troubleshooting NNM
Using Event Logs
Consult the Map for Related Objects
Device Names Change Unexpectedly
Network Topology Autolayout Errors
DHCP Reassigns an IP address
Autodiscovery Blues
Detecting an Impending Licence Expiration
NNM GUI Problems on UNIX Systems
14. Cross-Platform Issues
With NNM
X-Windows Differences
Java Issues
Bandwidth and X-Windows
Printing With NNM
15. Staffing Issues for
NNM
Determining Users for the Read-Only
Map
Who are the Keepers of the Maps
Who Creates MIB Applications
Who Troubleshoots NNM Itself
Who Resolves DNS Problems
Who Resolves NNM Product Problems
Who Performs System Administration
Who Develops Custom Applications
16. Best Practices
for NNM
Platform Sizing
ITO Manages the NNM Systems
Menu Management
Project Management
Dedicated System Administrator
17. NNM Case Studies
Global Manufacturing Company
A Natural Resource Company
A Bioengineering Company
A Local Vehicle Manufacturer
A Community College
A National Consulting Company
A Small Engineering Firm
A World Wide Computer Company
Glossary
Index
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