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- Set Up Application Failover
- Configure NNMi in a High Availability Cluster
- NNMi and NNM iSPI Default Ports
- General Concepts for Configuration
- Configure NNMi to Use a Different Java Development Kit
- NNMi Communications
- NNMi Discovery
- NNMi State Polling
- NNMi Incidents
- Configure NNMi Console
- NNMi Auditing
- Manage Certificates
- Use Single Sign-On (SSO) with NNMi
- Configure NNMi to Support Public Key Infrastructure User Authentication
- Configuring the Telnet and SSH Protocols for Use by NNMi
- Integrate NNMi with a Directory Service through LDAP
- Multihomed NNMi Management Server
- Managing Overlapping IP Addresses in NAT Environments
- NNMi Security and Multi-Tenancy
- Configure NNMi to Work in a GNM Environment
- Configuring NNMi Advanced for IPv6
- Quick Start Configuration Wizard
- Manage environment variables
- Console features useful for configuration tasks
- Actions provided by NNMi
- Processes and services
- Connect multiple NNMi Management Servers (NNMi Advanced)
- Configure communication protocol
- Discover your network
- Configure Device Profiles (sysObjectIDs)
- Create Groups of Nodes or Interfaces
- Monitor Network Health
- Configure the NNMi User Interface
- Configure Security
- Configure Incidents
- Use RAMS with NNMi Advanced
- Extend NNMi Capabilities
- Integrate NNMi Elsewhere with URLs
- Administer SNMP Traps
- Maintain NNMi
- Security Configuration
- Modify Default Settings
- NNMi Logging
- NNMi Northbound Interface
- Use Operations Bridge Reporter to View Reports
- Network Node Manager i Reference Pages
- Administer NPS
- Administer the NNM iSPI Performance for QA
- Administer the NNM iSPI Performance for Traffic
- Administer the NNM iSPI for MPLS
- Administer the NNM iSPI for IP Multicast
- Administer the NNM iSPI for IP Telephony
Using a wide range of protocols and techniques, NNMi Spiral Discovery gathers a wealth of information about your network inventory, ascertains the relationships between devices (such as subnets and VLANs and virtual resource pools), and accurately maps out the connectivity between those devices. The NNMi Causal Engine determines the current status of each device (plus each associated interface and address within that device) and proactively notifies you when NNMi detects any trouble or potential trouble.
This dynamic discovery process continues over time. When things change in your network management domain, Spiral Discovery automatically updates information according to a schedule that you set. The topology maps always reflect accurate and timely information about any changes within your network. For more information, see How spiral discovery works.
The first step is to verify that your network environment supports NNMi's Discovery process: Prerequisites for discovery.
If your network environment includes areas that use network address translation protocols, NNMi can successfully co-exist with the following protocol types (see Overlapping Address Mapping):
- Static Network Address Translation (NAT)
- Dynamic Network Address Translation (NAT)
- Dynamic Port Address Translation (PAT/NAPT)
If your network environment includes areas with conflicting subnet configurations, NNMi can successfully apply subnet masks separately to each group of Nodes you identify with a Tenant configuration (see Configure tenants).
Tip NNMi's Tenant configuration settings are useful for a variety of situations. Review the Tenant information so you know about all your options.
The NNMi administrator is responsible for the following:
- Decide which nodes NNMi discovers and how often NNMi checks for new devices in your network (see Configure discovery ).
- Specify which devices are the best source of information about your network (see Specify discovery seeds).
- Verify that NNMi has an accurate and complete understanding of your network environment (see Examine Discovery Results).
- Change the Discovery configuration as needed over time (see Manage topology).
For a list of the types of things NNMi can discover, see About Map Symbols.
From the information collected, NNMi constructs a model of your network configuration in the database, and displays this information in the map views. See View Maps of Network Connectivity for more information about the available map views.
To restrict subsequent SNMP Communication for a node after it is discovered, see Restrict SNMP communication for a node.
We welcome your comments!
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