IBM 8237, Installation And User Manual

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3-6
8237 Hub Installation and Planning Guide
Set forward mode
Type m and press Enter to display a window in which you can enter 1 to
set forward mode to adaptive cut-through or 2 to set the mode to store-
and-forward. Use adaptive cut-through mode for normal network
conditions. Use store-and-forward mode when there is a heavy network
load or high error rates.
Set back pressure
Type b and press Enter to display a window in which you can enter 1 to
disable back-pressure flow control or 2 to enable it. Back-pressure flow
control should be enabled for heavy network load conditions to prevent
frame loss.
Return to Main Menu
Type r and press Enter to return to the Main Menu.
Model 002 and Model 003 Management Options
Once you have entered a valid user ID and password, the menu illustrated in Figure
3-3 is displayed when you are connected to a Model 002 or Model 003.
Main Menu
=========
Exit
Restart System System Information ...
Configuration Panels:
SNMP Configuration ... Port Security Control ...
Segment Configuration ... TFTP Download ...
Hub Configuration ... XMODEM Download ...
Port Configuration ... User Passwords ...
Port Backups ... Management Port Config ...
Statistics Panels:
Segment Statistics ... Port Statistics ...
Hub Statistics ...
Use arrow keys to move. <Enter> to confirm
<Ctrl+E> to exit this program
Figure 3-3. Model 002 and Model 003 Main Menu Panel
To navigate any 8237 user interface panel, use the four cursor movement keys. The
Up and Down arrow keys cause selections to be highlighted while moving vertically.
The Right and Left arrow keys cause items to the right or left of the currently
highlighted item to be highlighted. To select a highlighted item, press Enter.
Items that are followed by three dots (...) will, when selected, go to a second panel
where additional selections can be made.
From the Main Menu panel, press Ctrl+E to cause an immediate exit from the user
interface program. On subsequent panels, press Ctrl+T to return to the Main Menu.
Note that on all panels, the third line from the bottom contains a brief description of
the highlighted item. On configuration panels, this line will indicate whether the field
can be updated and how this is done.
•
The field may be a read-only field.