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Customizing NetSight Element Manager 2-19
Overview of NetSight Element Manager
window, as described in Configuring Node Interface Poll Settings in Chapter 4). This
would override the polling refresh rate of the database (once per 50 seconds), by instead
having NetSight Element Manager issue a once-hourly poll to that individual node.
However, you cannot configure polling so that contact status with an individual node is
refreshed more frequently than the refresh rate established by the Node database polling
settings. Even if you configured one of your 100 managed nodes to be polled every 10
seconds for contact status, it would still be subject to the refresh rate of the entire node
database. In actuality, its contact status would only be updated once during the 50 seconds
it takes to fully poll the node database.
Use the following fields to establish the refresh rate of polling for all nodes in your node
database:
Interval (sec)
The amount of time that elapses between groups of poll packets. The number of intervals
required to complete a poll cycle will depend on how many devices are in your node
database, and how many are being polled during each interval.
To set the Interval value:
1. Click in the Interval text field, and type in the number of seconds you want
NetSight Element Manager to wait between each set of polling packets. The
range is from 1 to 60 seconds; the default is 5 seconds.
Packets
The number of poll packets that will be sent to devices eligible for polling during each
polling interval.
To set the Packets (number of polled devices) value:
1. Click in the Packets text field, and type in the number of IP devices you want
polled during each poll Interval. The range is from 1 to 25.
TIP
If you have a mission-critical node, you can keep Chassis Manager running to be
constantly appraised of its contact status. Because the Chassis Manager application uses
its own polling mechanism (independent of the node database polling in NetSight Element
Manager), you can determine the status of the node by using the Contact Status symbol in
Chassis Manager’s Logical View window. Refer to your individual device-specific User’s
Guides for more information on using Chassis Manager; refer to the Device
Management Options section, following, for more information on setting the Chassis
Manager poll settings. You can also issue an immediate status poll at any time via the
Query Status options described above.
TIP
To determine the amount of time it will take NetSight Element Manager to complete one
poll of all nodes in your database, divide the number of nodes in your database by the
Packets value and multiply by the Interval (sec) value.