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In this section we will discuss nodes,
node management in the Orion® Network Sonar Discovery tool.
We will begin by walking through adding nodes manually.
Next, we'll move on to using the Network Sonar Discovery.
Nodes can be just about any device on the network
like servers, switches, routers, or firewalls.
Within a node, interfaces and volumes can be monitored as well
providing a specific accurate look at the
status of the monitored device and its components.
For example, a switch may be up and functional
but has one port that is down.
Because of the granular level of the monitoring provided by Orion,
that distinction is made and clearly displayed to the user.
In Orion Network Performance Monitor,
nodes, interfaces, and volumes are
also commonly referred to as elements.
Nodes are added and managed from settings.
Under the Getting Started with Orion section,
Add a Node allows you to manually add individual nodes.
Nodes can also be manually added using
the Managed Nodes button found on the All Nodes Resource
in the Home or Network Summary view.
Once a node is identified by IP or host name,
you can also specify the polling method.
In most cases the default SNMP/ICMP method is recommended.
However, you can customize for status only using ICMP,
which will provide status and response time.
Our external, which will be for
devices that don't respond to a ping
but have other monitors that can be added later
or Windows® WMI and ICMP for Windows-based servers.
You can also poll for additional features where applicable
such as UCS and VMware®.
Once a node is discovered, you can then specify which
interfaces or volumes on the node you wish to monitor.
You will also have the option to add additional custom pollers
defined and created in the Universal Device Poller application,
as well as fill out custom properties
which can be used throughout the product.
Network Sonar Discovery is found in settings
under the Getting Started with Orion section.
Click "Network Sonar Discovery."
The wizard will guide you through configuring
SNMP community strings, VMware credentials,
as well as adding appropriate Windows credentials.
Defining the IP address ranges or subnets to be scanned is the next step.
You can also supply individual addresses from a list
to limit the scan to only those nodes.
Discovery Settings allow you to assign common
elements such as name and description
but also configure retry and timeout thresholds for each discovery method.
Once a scan is configured,
you will have the option to save and schedule this scan to run automatically.
When a scheduled scan finds a new node
or a change in monitored nodes,
a message will show in the informational window
at the top of your web console notifying you of the updates.
Once nodes are discovered, the wizard will show you what types of devices were found
and what types of interfaces and volumes those devices had available for monitoring.
This allows the administrator to select
the interface types that should be imported.
Of course no network or device is static.
So Orion Element Management
also allows administrators to get a fresh listing of elements
available for monitoring on an individual device,
change the display name, and monitoring frequency on a one off basis or en masse.
This is also available for monitored child elements,
such as interfaces or disk volumes.
These changes can be made by using the Edit option under Node Management
and the new elements found using the List
Resource option on the Node Management screen.
Alternatively, you can make the same changes from the Node Details page.
Node in interface polling intervals,
custom property values, and even names within the products can be changed
by selecting Edit in the Node or Interface Details resource.
Once in the Edit section,
changing the name of an interface or a node is internal to NPM.
It is not making changes on the device itself.
The device's true host name is still stored in the database
and viewable in reports and on the Node Details screen.
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