Configuring an FDDI Interface and Displaying Status InformationUse the VNswitch FDDI Status and Configuration window to display the status and current configuration of the FDDI interface.You can also configure the FDDI interface. |
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Note: All the FDDI interfaces on the VNswitch module are automatically configured when the module is installed. However, you may need to alter the default settings to maximize network performance, or to accommodate requirements unique to your network environment. |
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Caution: It is recommended that the only configuration tasks you perform on an FDDI interface are enabling or disabling an interface, setting the interface for full- or half-duplex mode, setting the station type, and resetting parameters to defaults (these last two tasks are performed via the CLI). It is recommended that you alter the remaining settings only if you fully understand the effect the change will have on the entire network. | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Enabling an FDDI InterfaceAll the FDDI interfaces on the VNswitch module are automatically enabled when the module is installed. If you have previously disabled an interface, and need to enable it, perform the following procedure. Procedure:
Disabling an FDDI InterfaceBy default, all FDDI interfaces on the module are enabled. You might need to disable an interface, for example, if you want to logically disconnect a portion of your network while making changes to the network segment's physical environment. Procedure:
Setting the Link Error Rate AlarmTo set the link error alarm, refer to the FDDI Interface Configuration section of the window and perform the following procedure. Procedure:
Automatically Disconnecting Nodes Causing Excessive Link ErrorsTo configure the VNswitch module to automatically disconnect nodes that are causing excessive link errors, refer to the FDDI Interface Configuration section of the window and perform the following procedure. For more information, see Cutoff Value for Link Errors. Procedure:
Enabling or Disabling the Ring PurgerTo enable or disable the ring purger, refer to the FDDI Interface Configuration section of the window and perform the following procedure. Procedure:
Setting Token Passing and Frame Timing ParametersTo set the FDDI token passing and frame timing parameters, refer to the FDDI Interface Configuration section of the window and perform the following procedure. Procedure:
Configuring Duplex ModeYou can set the FDDI interface to function in either full-duplex or half-duplex mode. If you set the interface for full-duplex mode, the link will function as a full-duplex circuit only if the device with which auto-negotiation occurs is also enabled for full-duplex mode; otherwise, half-duplex mode is used. To set the FDDI interface for either full-duplex or half-duplex mode, refer to the FDDI Interface Configuration section of the window and perform the following procedure. Procedure:
Enabling or Disabling SMT NotificationFDDI stations use Status Report Frames (SRFs) to notify the SMT management station about certain events or conditions. The events and conditions can include, for example, ring wrap, exceeding thresholds such as link error alarm and cutoff values, and the detection of an illegal port type configuration. To enable or disable sending of Status Report Frames to the SMT management station, refer to the FDDI Interface Configuration section of the window and perform the following procedure. Procedure:
Performing Other Configuration TasksUse the CLI to perform the following configuration tasks: |
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Field Descriptions |