To manage FDDI stations, use LAN Network Manager to monitor and view information about stations and make changes as necessary to improve station performance.
This chapter describes the information that you can view for a station, identifies which parts of the information you can change, and describes other actions you can perform to help manage the station. The information in this chapter is organized according to each type of resource object included in a station.
This chapter contains the following topics:
| Note: | Some of the fields on the FDDI management windows contain information that is supported by only level 6.2 or level 7.3 of the SMT standard. These fields may be grayed if they display information for devices that do not support the appropriate level of the SMT standard. |
Some selections on pull-down menus may be grayed if the actions cannot be performed for the selected device.
LAN Network Manager provides a FDDI Station submap to represent the managed elements of an FDDI station. If you double-click on an FDDI station in an FDDI Segment submap, the FDDI Station submap opens to display a graphical representation of a computer workstation. Icons representing the SMT, attachment, MAC, path, path class, and ports are displayed in the submap.
The color of a managed element indicates the element's current status. Select a managed element from the FDDI Station submap to obtain profile, configuration, fault, and performance information for that element. To open a Node submap for the selected station, double-click on the SMT icon.
Station Management (SMT) is the component in an FDDI station or concentrator that coordinates basic operation of the resource, such as connection to the FDDI segment and interaction with other stations on the segment. The SMT object represents an FDDI station or an FDDI concentrator.
Display information about the SMT object of a station by accessing one of
the following windows:
| For information about: | Read: |
|---|---|
| Profile | Displaying the Station Management Profile Window |
| Configuration | Using the Station Management Configuration Window |
| Fault | Displaying Station Management Fault Window |
The Station Management Profile window enables you to access information about how a station is currently configured and how it is operating.
To display the Station Management Profile window, select a station from a Segment submap or select the SMT icon from the FDDI station submap, then select Profile from either the LAN pull-down menu or the context menu. The Station Management Profile window is displayed.
To perform additional actions from the Station Management Profile window,
select one of the following menu choices from the Actions pull-down
menu:
| For information about: | Read: |
|---|---|
| Connect | Connecting a Station |
| Disconnect | Disconnecting a Station |
| Test path | Testing a Station's Path |
| Self-test | Running a Self-Test |
| Disable a | Disabling the A Port of a Station |
| Disable b | Disabling the B Port of a Station |
| Disable m | Disabling the M Ports of a Station |
To navigate directly to other SMT windows, select one of the following
choices from the Navigation pull-down menu on the Station Management Profile
window:
| Select: | To navigate to: |
|---|---|
| Configuration | To display the Station Management Configuration window |
| Fault | To display the Station Management Fault window |
To connect an FDDI station to the segment, select Connect from the Actions pull-down menu on the Station Management Profile window.
To disconnect an FDDI station from the segment, select Disconnect from the Actions pull-down menu on the Station Management Profile window.
When you disconnect an FDDI station, LAN Network Manager removes the station from the segment and from the graphical submaps. Disconnecting severs the communication link to the station. Reconnecting the station requires manual intervention.
The path test function in an FDDI station is used to verify the data path through the station and locate faulty MACs.
To perform a path test on a station, select Test path from the Actions pull-down menu on the Station Management Profile window.
LAN Network Manager cannot verify the results of this action. If the FDDI station performs a path test and identifies a problem, it disconnects itself from the ring. LAN Network Manager is notified of the topology change through its normal neighbor notification operation.
To initiate a self test in a station, select Self test from the Actions pull-down menu on the Station Management Profile window.
LAN Network Manager cannot verify the results of this action. If the FDDI station executes its self-test function and identifies a problem, it disconnects itself from the ring. LAN Network Manager becomes aware of the change in topology through its normal neighbor notification operation.
The A port in a dual-attached FDDI station is designated as the inbound path for the primary ring and the outbound path for the secondary ring.
You can use LAN Network Manager to disable the A port of a dual-attached FDDI station.
From this window, this action is valid only for devices that support the 7.3 level of the SMT standard. You can disable the port of a station that supports the 6.2 level of the SMT standard using the Port Profile window. See Disabling a Port for more information.
To disable the A port of a station, select Disable A from the Actions pull-down menu on the Station Management Profile window.
The B port in a dual-attached FDDI station is designated as the outbound path for the primary ring and the inbound path for the secondary ring.
You can use LAN Network Manager to disable the B port of a dual-attached FDDI station.
From this window, this action is valid only for devices that support the 7.3 level of the SMT standard. You can disable the port of a station that supports the 6.2 level of the SMT standard using the Port Profile window. See Disabling a Port for more information.
To disable the B port of a station, select Disable B from the Actions pull-down menu on the Station Management Profile window.
Ports of type M provide connections to the concentrator tree.
This action disables all M ports. This action is valid only for devices that support the 7.3 level of the SMT standard. You cannot perform this action on devices that only support the 6.2 level of the SMT standard.
To disable the M ports, select Disable from the Actions pull-down menu on the Station Management Profile window.
To disable a single M port, select the port you want to disable, and then select Profile, Configuration, or Fault from the LAN pull-down or context menu. Then select Disable from the Actions pull-down on the Port Profile, Configuration, or Fault management window to disable the selected port.
The Station Management Configuration window enables you to access and change station configuration information.
To display the Station Management Configuration window, select a station from a Segment submap or select the SMT icon from the FDDI station submap. Then select Configuration from either the LAN pull-down menu or the context menu.
To perform additional actions from the Station Management Configuration
window, select one of the following menu choices from the Actions pull-down
menu:
| For information about: | Read: |
|---|---|
| Connect | Connecting a Station |
| Disconnect | Disconnecting a Station |
| Test path | Testing a Station's Path |
| Self-test | Running a Self-Test |
| Disable a | Disabling the A Port of a Station |
| Disable b | Disabling the B Port of a Station |
| Disable m | Disabling the M Ports of a Station |
To navigate directly to other SMT windows, select one of the following
choices from the Navigation pull-down menu on the Station Management
Configuration window:
| Select: | To navigate to: |
|---|---|
| Profile | To display the Station Management Profile window |
| Fault | To display the Station Management Fault window |
The Station Management Fault window allows you to access detailed information about how a station is operating and enables you to set threshold values and monitor fault conditions.
To display the Station Management Fault window, select a station from a Segment submap or select the SMT icon from the FDDI station submap. Then select Fault from either the LAN pull-down menu or the context menu.
To perform additional actions from the Station Management Fault window,
select one of the following menu choices from the Actions pull-down
menu:
| For information about: | Read: |
|---|---|
| Connect | Connecting a Station |
| Disconnect | Disconnecting a Station |
| Test path | Testing a Station's Path |
| Self-test | Running a Self-Test |
| Disable a | Disabling the A Port of a Station |
| Disable b | Disabling the B Port of a Station |
| Disable m | Disabling the M Ports of a Station |
To navigate directly to other SMT windows, select one of the following
choices from the Navigation pull-down menu on the Station Management Fault
window:
| Select: | To navigate to: |
|---|---|
| Profile | To display the Station Management Profile window |
| Configuration | To display the Station Management Configuration window |
The media access control (MAC) of an FDDI station ensures that the station has data access to the ring, performs any checking of data frames, and handles address recognition. The MAC is also responsible for delivering packet data, including frame generation, repetition, and removal. A station can have multiple instances of a MAC.
Display MAC information by accessing one of the following windows:
| For information about: | Read: |
|---|---|
| Profile | Using the MAC Profile Window |
| Configuration | Using the MAC Configuration Window |
| Performance | Using the MAC Performance Window |
The MAC Profile window provides information about MAC configuration and operation.
To display the MAC Profile window, select the MAC icon from the FDDI Station submap, then select Profile from either the LAN pull-down menu or the context menu.
To perform additional actions from the MAC Profile window, select one of
the following menu choices from the Actions pull-down menu:
| For information about: | Read: |
|---|---|
| Enable LLC service | Enabling LLC Service |
| Disable LLC service | Disabling LLC Service |
| Connect MAC | Connecting a MAC |
| Disconnect MAC | Disconnecting a MAC |
To navigate directly to other MAC windows, select one of the following
choices from the Navigation pull-down menu on the MAC Profile window:
| Select: | To navigate to: |
|---|---|
| Configuration | To display the MAC Configuration window |
| Fault | To display the MAC Fault window |
| Performance | To display the MAC Performance window |
To display additional information, select one of the following push buttons
on the MAC Profile window:
| For information about: | Read: |
|---|---|
| Operation | MAC Profile Operation Window |
| Capabilities | MAC Profile Capabilities Window |
To access the MAC Profile Operation window, select the Operation push button on the MAC Profile window. The MAC Profile -- Operation window is displayed.
To access the MAC Profile Capabilities window, select the Capabilities push button on the MAC Profile window. The MAC Profile -- Capabilities window is displayed.
To enable the local logical link control entity to communicate with that of a peer station, select Enable LLC service from the Actions pull-down menu on the MAC Profile window.
This action is valid only for devices that support the 6.2 level of the SMT standard.
To terminate communication between the local logical link control entity and that of a peer station, select Disable LLC service from the Actions pull-down menu on the MAC Profile window.
| Note: | If you perform this action for the station that is running the FDDI SNMP Proxy Agent program, TCP/IP is terminated and you lose connection to the local segment. |
This action is valid only for devices that support the 6.2 level of the SMT standard.
To enable the MAC to transfer data on the ring, select Connect MAC from the Actions pull-down menu on the MAC Profile window.
This operation fails if there is no path to the disconnected MAC.
This action is valid only for devices that support the 6.2 level of the SMT standard.
To detach the MAC from the ring and inhibit transfer of data, select Disconnect MAC from the Actions pull-down menu on the MAC Profile window.
This action is valid only for devices that support the 6.2 level of the SMT standard.
The MAC Configuration window enables you to access information about how the MAC is configured and allows you to change the configuration.
To display and change MAC configuration information, select the MAC icon from the FDDI Station submap, then select Configuration from either the LAN pull-down menu or the context menu. The MAC Configuration window is displayed.
To perform additional actions from the MAC Configuration window, select one
of the following menu choices from the Actions pull-down menu:
| For information about: | Read: |
|---|---|
| Enable LLC service | Enabling LLC Service |
| Disable LLC service | Disabling LLC Service |
| Connect MAC | Connecting a MAC |
| Disconnect MAC | Disconnecting a MAC |
To navigate directly to other MAC windows, select one of the following
choices from the Navigation pull-down menu on the MAC Configuration
window:
| Select: | To navigate to: |
|---|---|
| Profile | To display the MAC Profile window |
| Fault | To display the MAC Fault window |
| Performance | To display the MAC Performance window |
The MAC Fault window enables you to access detailed information about how a MAC is operating and allows you to set threshold values and monitor fault conditions.
To display the MAC Fault window, select the MAC icon from the FDDI Station submap, then select Fault from either the LAN pull-down menu or the context menu.
To perform additional actions from the MAC Fault window, select one of the
following menu choices from the Actions pull-down menu:
| For information about: | Read: |
|---|---|
| Enable LLC service | Enabling LLC Service |
| Disable LLC service | Disabling LLC Service |
| Connect MAC | Connecting a MAC |
| Disconnect MAC | Disconnecting a MAC |
To navigate directly to other MAC windows, select one of the following
choices from the Navigation pull-down menu on the MAC Fault window:
| Select: | To navigate to: |
|---|---|
| Profile | To display the MAC Profile window |
| Configuration | To display the MAC Configuration window |
| Performance | To display the MAC Performance window |
To display additional information, select one of the following push buttons
on the MAC Fault window:
| For information about: | Read: |
|---|---|
| Error counters | MAC Fault Error Counters Window |
| Copy failure counters | MAC Fault Copy Failure Counters Window |
To access the MAC Fault Error Counters window, select Error Counters on the MAC Fault window. The MAC Fault -- Error Counters window is displayed.
To access the MAC Fault Copy Failure Counters window, select Copy Failure Counters on the MAC Fault window. The MAC Fault -- Copy Failure Counters window is displayed.
The MAC Performance window provides detailed information about how efficiently a MAC is operating and processing data.
To display the MAC Performance window, select the MAC icon from the FDDI Station submap, then select Performance from either the LAN pull-down menu or the context menu.
To perform additional actions from the MAC Performance window, select one
of the following menu choices from the Actions pull-down menu:
| For information about: | Read: |
|---|---|
| Enable LLC service | Enabling LLC Service |
| Disable LLC service | Disabling LLC Service |
| Connect MAC | Connecting a MAC |
| Disconnect MAC | Disconnecting a MAC |
To navigate directly to other MAC windows, select one of the following
choices from the Navigation pull-down menu on the MAC Performance
window:
| Select: | To navigate to: |
|---|---|
| Profile | To display the MAC Profile window |
| Configuration | To display the MAC Configuration window |
| Fault | To display the MAC Fault window |
The object management of ports for an FDDI station deals either with port attributes, such as configuration, operation, and status, or with error conditions experienced by a port.
Display port information by accessing one of the following windows:
| For information about: | Read: |
|---|---|
| Profile | Using the Port Profile Window |
| Configuration | Using the Port Configuration Window |
| Fault | Using the Port Fault Window |
The Port Profile window provides configuration and operation information for a port.
To display the Port Profile window, select a port icon from the FDDI Station submap, then select Profile from either the LAN pull-down menu or the context menu.
To perform additional actions from the Port Profile window, select one of
the following menu choices from the Actions pull-down menu:
| For information about: | Read: |
|---|---|
| Maintain | Maintaining a Port |
| Enable | Enabling a Port |
| Disable | Disabling a Port |
| Start | Starting a Port |
| Stop | Stopping a Port |
To navigate directly to other port windows, select one of the following
choices from the Navigation pull-down menu on the Port Profile window:
| Select: | To navigate to: |
|---|---|
| Configuration | To display the Port Configuration window |
| Fault | To display the Port Fault window |
Within the FDDI station, the maintenance state is provided to support port maintenance functions for troubleshooting problems between ports, such as line faults. To put the resource in maintenance state, you need to force the port into a known line state.
To put a port in the maintenance state, select Maintain from the Actions pull-down menu on the Port Profile window.
To perform maintenance on a port, first terminate port activity. For more information, see Stopping a Port.
To indicate that port maintenance is complete and that the port is ready to be started, select Enable from the Actions pull-down menu on the Port Profile window.
To terminate activity in a port and cause it to enter the maintenance state, select Disable from the Actions pull-down menu on the Port Profile window.
To indicate that the port is available for communication, select Start from the Actions pull-down menu on the Port Profile window.
To terminate activity in a port without directly entering the maintenance state, select Stop from the Actions pull-down menu on the Port Profile window.
The Port Configuration window enables you to access information about how the port is configured and allows you to change the configuration.
To display the Port Configuration window, select a port icon from the FDDI Station submap, then select Configuration from either the LAN pull-down menu or the context menu.
To perform additional actions from the Port Configuration window, select
one of the following menu choices from the Actions pull-down menu:
| For information about: | Read: |
|---|---|
| Maintain | Maintaining a Port |
| Enable | Enabling a Port |
| Disable | Disabling a Port |
| Start | Starting a Port |
| Stop | Stopping a Port |
To navigate directly to other port windows, select one of the following
choices from the Navigation pull-down menu on the Port Configuration
window:
| Select: | To navigate to: |
|---|---|
| Profile | To display the Port Profile window |
| Fault | To display the Port Fault window |
The Port Fault window enables you to access detailed information about how a port is operating and allows you to set threshold values and monitor fault conditions.
To display the Port Fault window, select a port icon from the FDDI Station submap, then select Fault from either the LAN pull-down menu or the context menu.
To perform additional actions from the Port Fault window, select one of the
following menu choices from the Actions pull-down menu:
| For information about: | Read: |
|---|---|
| Maintain | Maintaining a Port |
| Enable | Enabling a Port |
| Disable | Disabling a Port |
| Start | Starting a Port |
| Stop | Stopping a Port |
To navigate directly to other port windows, select one of the following
choices from the Navigation pull-down menu on the Port Fault window:
| Select: | To navigate to: |
|---|---|
| Profile | To display the Port Profile window |
| Configuration | To display the Port Configuration window |
Display additional port fault information for a selected port on the Port Fault -- Link Errors window. The Port Fault -- Link Errors window displays the values for a variety of link error counters and enables you to set threshold values that determine when the number of link errors causes an alarm to be generated or the link connection to be terminated.
To display the Port Fault -- Link Errors window, select the Port link errors push button on the Port Fault window.
The path in an FDDI station represents the segment or segments of the logical ring that pass through the station. The path object can have multiple instances within a node.
Display path information by accessing one of the following windows:
| For information about: | Read: |
|---|---|
| Profile | Using the Path Profile Window |
| Configuration | Using the Path Configuration Window |
| Fault | Using the Path Fault Window |
The Path Profile window provides configuration and operation information for a path.
To display the Path Profile window, select the path icon from the FDDI Station submap, then select Profile from either the LAN pull-down menu or the context menu.
Navigate to the Path Configuration window by selecting Configuration from the Navigation pull-down menu on the Path Profile window.
The Path Configuration window enables you to access information about how the path is configured and allows you to change the configuration.
To display the Path Configuration window, select the path icon from the FDDI Station submap, then select Configuration from either the LAN pull-down menu or the context menu.
Navigate to the Path Profile window by selecting Profile from the Navigation pull-down menu on the Path Configuration window.
The Path Class Configuration window displays information about transmission timers used on the path to detect ring inactivity and about time values that affect the target token rotation time (TTRT) used on the path.
To display the Path Class Configuration window, select More in the Path class configuration field.
The Path Fault window enables you to access detailed information about how a path is operating and allows you to set threshold values and monitor fault conditions.
To display the Path Fault window, select the path icon from the FDDI Station submap, then select Fault from either the LAN pull-down menu or the context menu.
Navigate to the Path Profile window by selecting Profile from the Navigation pull-down menu on the Path Fault window.
The attachment object represents a port or a pair of ports plus the optional associated optical bypass. There is always an association between the attachment resource and the port.
Display attachment information by accessing one of the following
windows:
| For information about: | Read: |
|---|---|
| Profile | Using the Attachment Profile Window |
| Configuration | Using the Attachment Configuration Window |
The Attachment Profile window provides configuration and operation information for the attachment components of a station.
This action is valid only for devices that support the 6.2 level of the SMT standard.
To display the Attachment Profile window, select the attachment icon from the FDDI Station submap, then select Profile from either the LAN pull-down menu or the context menu.
Navigate to the Attachment Configuration window by selecting Configuration from the Navigation pull-down menu on the Attachment Profile window.
The Attachment Configuration window enables you to access information about how the attachment components of a station are configured and allows you to change their configuration.
This action is valid only for devices that support the 6.2 level of the SMT standard.
To display the Attachment Configuration window, select the attachment icon from the FDDI Station submap, then select Configuration from either the LAN pull-down menu or the context menu.
Navigate to the Attachment Profile window by selecting Profile from the Navigation pull-down menu on the Attachment Configuration window.