Nortel Networks Optivity Switch Manager for LAN Switch Networks Release 1.0.0.0 # Go back one pageGo to the next page#Go to this book's Index

Discovering devices on a network

The topology discovery process begins when you supply Optivity Switch Manager with one or more network device addresses and the application queries them.

To enter a network seed address:

  1. From the Optivity Switch Manager menu bar, choose Edit > Preferences.
    2. The Preferences dialog box opens.

The Preferences dialog box items are described in the following table.


Section Item Description
Discovery
Seed Address(es)
The IP address(es) of one or more devices that Optivity Switch Manager queries using SNMP to start the discovery process. These devices must be among the supported devices listed on Supported devices.
Note: If the devices you want to monitor and configure are not connected to the same network, you can specify multiple seed addresses, separated by commas. The separate networks do not appear to be connected in the network topology map.

Max Hops
Enter the number of hops, between 1 and 20, that a data packet travels from one router or intermediate point to another in the network. (Default is 5 hops.)

Restrict Discovery
Opens the Restrict Discovery dialog box to restrict device discovery to only the devices in the subnets entered. Refer to Restricting discovery for more information.
Map
Layout
Drag the slider to the right (better) or to the left (faster) to indicate how you want Optivity Switch Manager to lay out devices in the network topology map. Refer to Layout slider for more information.

Show Device by
Determines how a device is identified in the network topology map. The selections are:
  • HostName
  • SysName
  • IP Address (Default)

Trim HostName Domains
Truncates Internet host name domains.
Example: nortelnetworks.com becomes nortelnetworks

Non-highlighted area
Allows you to select an option for viewing inactive devices. The options are:
  • Dimmed-Non-highlighted items are shaded. (Default)
  • Invisible-Removes non-highlighted items from the topology map.

TDM Path
Enter the directory path for Tcl/tk Device Manager (TDM) files.
Note: Java Device Manager is the default version of DM for Optivity Switch Manager. If you are accessing devices that do not support Java Device Manager, you must enter the TDM path for Optivity Switch Manager to load TDM.

Automatically Save on Exit
If checked, the current network topology map is automatically saved to the default.topo file.

Automatically Relayout after discovery
If checked, the network topology map is adjusted for better viewing as it is loaded in Optivity Switch Manager.
SNMP
Retry Count
Enter the number of times between 0 and 5 Optivity Switch Manager tries to connect to a device using SNMP. (Default is 1.)

Timeout
Enter the amount of time between 3 and 10 seconds, Optivity Switch Manager waits before trying to connect to a device again. (The default is 5.)

Max Outstanding Requests
Enter the number of SNMP requests, between 20 and 250, that Optivity Switch Manager maintains as open or outstanding. (The default is 100.)

Trace
If checked, additional SNMP information is written to the Optivity Switch Manager error log, and can provide assistance in troubleshooting.
Note: Selecting Trace could slightly slow down performance as extra information is gathered.

  1. In the Seed Address(es) textbox, type the IP address of a device in the network.
    2. Separate multiple IP addresses with a comma.
  2. In the MaxHops textbox, type the number of hops.
  3. Use the Layout slider to indicate whether greater speed or accuracy is desired.
  4. Select different options in the dialog box to control the topology map output.
    5. See Preferences dialog box items for a description of the options available.
  5. Click Apply.
  6. Click OK.
  7. From the Optivity Switch Manager menu bar, choose Actions > Discover Map.
    8. The topology map is displayed.
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