> # Setting Cisco DCNM-SAN Preferences

> To set your preferences for the behavior of the Cisco DCNM-SAN, choose File > Preferences from the Cisco DCNM-SAN menu bar. You see the Preferences dialog box with the following tabs for setting different components of the application:

> - General
> - SNMP
> - Map

> The default General preferences for Cisco DCNM-SAN are as follows:

> - Show Device Name by—Displays the switches in the Fabric pane by IP address, DNS name, or logical name. The default setting for this value is Logical Name.
> - Show WorldWideName (WWN) Vendor—Displays the world wide name vendor name in any table or listing displayed by Cisco DCNM-SAN. Check the Prepend Name check box to display the name in front of the IP address of the switch. Check the Replacing Vendor Bytes check box to display the name instead of the IP address. The default is the Prepend Name option.
> - Show End Device Using—Displays end devices in the Fabric pane using alias or pWWN alias. The default setting for this value is Alias.
> - Show Shortened iSCSI Names—Displays the default setting for this value is OFF.
> - Show Timestamps as Date/Time—Displays timestamps in the date/time format. If this preference is not checked, timestamps are displayed as elapsed time. The default setting is enabled (checked).
> - Telnet Path—Displays the path for the telnet.exe file on your system. The default is telnet.exe, but you need to browse for the correct location.

> Note If you browse for a path or enter a path and you have a space in the pathname (for example, c:\program files\telnet.exe), then the path will not work. To get the path to work, you must manually place quotes around it (for example, "c:\program files\telnet.exe").

> - Use Secure Shell instead of Telnet—Specifies whether to use SSH or Telnet when using the CLI to communicate with the switch. If enabled, you must specify the path to your SSH application. The default setting is disabled.
> - Confirm Deletion—Displays a confirmation pop-up window when you delete part of your configuration using Cisco DCNM-SAN. The default setting is enabled (checked).
> - Export Tables with Format—Specifies the type of file that is created when you export a table using Device Manager. The options are tab-delimited or XML. The default setting is Tab-Delimited.
> - Show CFS Warnings—Shows warning messages if CFS is not enabled on all switches for a selected feature.

> The default SNMP preferences for Cisco DCNM-SAN are as follows:

> - Retry request 1 time(s) after 5 sec timeout—You can set the retry value to 0-5, and the timeout value to 3-30.
> - Trace SNMP packets in Log—The default setting for this value is ON.
> - Enable Audible Alert when Event Received—The default setting for this value is OFF.

> The default Map preferences for Cisco DCNM-SAN are as follows:

> - Display Unselected VSAN Members—Displays the unselected VSAN members in the Fabric pane. The default setting for this value is ON.
> - Display End Devices—Displays the fabric’s end devices in the Fabric pane. The default setting for this value is ON.
> - Display End Device Labels—Displays the fabric’s end device labels in the Fabric pane. The default setting for this value is OFF.
> - Expand Loops—Displays the loops in the fabric as individual connections in the Fabric pane. The default setting for this value is OFF.
> - Expand Multiple Links—Displays multiple links in the Fabric pane as separate lines instead of one thick line. The default setting for this value is OFF.
> - Open New Device Manager Each Time—Opens a new instance of Device Manager each time that you invoke it from a switch in your fabric. The default value is OFF, which means that only one instance of Device Manager is open at a time.
> - Select Switch or Link from Table—Allows you to select a switch or link in the Fabric pane by clicking the switch or link in a table in the Information pane. The default setting for this value is disabled (unchecked), which means clicking a switch or link in the table does not change the switch or link selection in the Fabric pane.
> - Layout New Devices Automatically—Automatically places new devices in the Fabric pane in an optimal configuration. The default setting for this value is OFF. In this mode, when you add a new device, you must manually reposition it if the initial position does not suit your needs.
> - Use Quick Layout when Switch has 30 or more End Devices—Displays the default setting for this value (30). You can enter any number in this field. Enter 0 to disable Quick Layout.
> - Override Preferences for Non-default Layout—Displays the default setting for this value (ON).
> - Automatically Save Layout—If this option is enabled, any changes in the layout are automatically saved. The default setting for this value is ON.
> - Detach Overview Window—Allows you to easily center the Fabric pane on the area of the fabric that you want to see. (This feature is useful for large fabrics that cannot be displayed entirely within the Fabric pane.) Bring up the overview window by clicking the Show/Hide Overview Window button. It overlays the fabric window and remains there until you click the Show/Hide Overview Window button again. If you enable this preference, you can detach the overview window and move it to one side while you access the Fabric pane. The default setting for this value is disabled (unchecked).

> Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.