Discovery with an Existing NetMRI Platform

When existing customers update a NetMRI deployment to the current release, a number of changes appear in the deployment.

• Your currently managed network, with its current discovery settings, is managed through a new network view named after the previously defined network name. No further configuration is necessary for continued network management but changes can be made at any time. For more information, see Configuring Network Views.
• Existing discovery settings, such as CIDR discovery ranges, are automatically assigned to the network view used for the managed network.
• Your SCAN port for your appliance (or appliances, in the case of Operations Center deployments using Collectors) will automatically be assigned to the network view that is used for your present managed network. This port will be named LAN1. For more information, see Configuring Scan Interfaces.
• Depending on your appliance, a second LAN2 port is made available for further network connections.
• Your MGMT port will continue to operate as the appliance's Web management interface.
• All active Ethernet interfaces on your appliance(s), including the MGMT port, support Ethernet 802.1Q encapsulation for virtual scan interfaces. For more information, see Configuring Virtual Scan Interfaces.
• If VRF-aware devices exist on your managed network, System Health banner messages will notify you about unassigned VRFs. To enable full network discovery and control for each virtual network, these networks need to be mapped to virtual scan interfaces. For more information, see Mapping Virtual Networks to Network Views30804657and Configuring Virtual Scan Interfaces.

Existing Operations Center deployments will see the following changes:

• For an OC deployment managing a single large network, you will see multiple entries in the pages under the Settings icon > Setup > Discovery Settings for selectable network views. The entire network is assigned to a single network view. However, each network view entry is identified through the association of each Collector. This allows you to edit discovery settings for each Collector in the same network view.
• Multi-Network Operations Center deployments automatically assign each managed network to a new Network View. Each network view is named based upon the original network name.
• Multi-Network Operations Center deployments automatically define a new set of device groups for each managed network, along with the standard set of device groups. These network-specific device groups are named using the original network name as a prefix.
• During the upgrade, a Multi-Network OC deployment creates a series of new network views, each of which corresponds to the networks managed under the prior software release. Each device listed in Network Explorer tables provides a link under a new Network View column, which opens the Network Viewer window. This window lists all devices that are members of the network view.
• In Multi-Network Operations Center deployments, discovery settings for each network, such as CIDR discovery ranges and seed routers, are automatically associated with the network views for each managed network, that use each of the respective discovery settings.

 Discovery with a New NetMRI Deployment describes the sequence of high-level tasks you perform to configure and run discovery on your network.