Finisar Surveyor manual Building a Name Table From the Network

Surveyor

User’s Guide

Name tables are limited to 5,000 entries. The Maximum Number of Entries field in the Name Table Settings dialog box must be at least 100 and no more than 5,000.

For remote resources, Surveyor uses names learned from remote as well as local resources when displaying capture or monitor views. A local copy of the remote name table is updated at a specified time interval. The time interval for refreshing the remote name table is set in the Configuration menu of Surveyor. If there are duplicate names between remote and local resources, local names take precedence and the name table will display the local name only.

The active name table can be loaded from a file. Loading the name table from a file will overwrite all existing entries in memory. Keep this in mind when using the network to learn names; until names are saved to a file, they can be lost if you exit Surveyor or overwrite the name table contents.

Entries in the currently active name table appear in a Name Table area that is within the dialog boxes for appropriate filter statements. The Name Table window shows all name and address associations, including the protocol and the frame type. Before starting to write a capture or display filter, make sure the name table you want is the currently active name table (loaded into memory). This ensures that the proper symbolic names are available.

To use the same name table information for all systems running Surveyor, you can set up a common default name table. All Surveyor users can configure the path and name of the default name table, which can be the same file stored on a server. See “Providing a Name Table to Surveyor” in Chapter 3 for more information.

Building a Name Table From the Network

The following provides a general outline of how to build a name table for the names in your network.

1.Run Surveyor in monitor mode. Do not use any filters. The Learn Names check box must be selected in the Name Table Settings dialog box; if you also select the Learn Address option, Surveyor places any addresses it sees on the network into the name table as they are discovered in the data stream.

2.If you have names you want to associate with addresses learned from the network, edit the name table using the Name Table dialog box. This step can also be performed after the name table is saved.

3.Save the name table to a file. You must save the name table before you exit Surveyor or new name table data will be lost. If you save the name table data to the default name table, hosts.nam, the new name table data will be loaded automatically whenever you restart Surveyor. If you save the name table to a new file, use the .nam file extension for easy reference.

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