Ref: 99980019
Title: GS/1-IP MCPU20 Firmware Configuration
Date: 1/1/88

Copyright 3Com Corporation, 1991.  All rights reserved.

.br;GS/1-IP MCPU20 Firmware Configuration

MCPU20 firmware configuration applies only to the GS/a-IP.  The
GS/a-X.25, GS/3, and GS/3-IP do not contain an MCPU20 board,
having instead an MCPU board.  Firmware configuration is used to
modify various parameters, such as automatic reboot, console
(monitor) port baud rate, and auxiliary port baud rate, stored in
EEPROM.

MCPU20 firmware is preset at the factory for the majority of
installations and probably does not need to be reconfigured.
This section describes changes that can be made, if necessary.
The modifications are performed from a terminal attached to your
GS/1-IP's console port.

To configure the firmware, follow these steps:

1.  Attach a terminal to the console port of your GS/1-IP, and
power the terminal on.

2.  Power on the GS/1-IP, or, if it is already powered on, press
the Reset switch.

3.  Press the Return key.  A display similar to the following
appears:

    Series/1 Power-up
    MCPU20 - Passed M3 MMON rev <xxx>
    0 - IEC/M 512KB - Passed Station Address - 08002xxxxxx M1
    IECM rev. xxx
    1 - SIO - passed M1 SYNC rev xxx
    2 - Not Present
    3 - Not Present
    4 - Not Present

    Bridge Communications MCPU20 Monitor
    >

The twelve-digit number, respresented by 080002xxxxxx above,
is the GS/1-IP's Ethernet address.

Firmware configuration is part of a program, known as the
monitor, built into the MCPU20's firmware.  The last two
lines are a welcome message from the monitor, indicating that
the GS/1-IP is in monitor mode.  The angle bracket (">")
indicates that the monitor is ready to accept monitor
commands.

4.  At the angle-bracket prompt, enter the following command and
press the Return key:

    fc

5.  The following menu appears:

    Firmware Configuration Utility Commands:

    C - Change parameters
    D - Display parameters
    E - Exit to monitor

    ?

    These commands have the following functions:
    C   Alters current parameters.
    D   Displays the current parameter settings.
    E   Returns to the monitor prompt (>).

6.  To change any of the configuration parameters, select C.  The
following parameters are displayed, with their current
settings:

    Current Parameters;

    0.  Console baud rate:     9600
    1.  Auxiliary baud rate:   9600
    2.  Auto-reboot:           Reboot only
    3.  Initial boot source:   Auto
    4.  Number of reboots:     00
    5.  Network boot string:   _cs1
    6.  Drive type:            96 tpi
    Q.  Previous menu

    Select parameter ?

Each of these parameters is described below.  To modify a
parameter:

    a.  Press the number corresponding to the parameter you wish
        to modify.  Do not press the Return key.

    b.  The choices available for the parameters are displayed.
        Make your selection.

    c.  The new value is entered next to the parameter name, and
        the list of parameters is redisplayed.  To return to the
        Firmware Configurations Utility menu, press Q.  If you
        press an incorrect key, the message "Illegal parameter"
        appears, and the choices are redisplayed.

    d.  Select E to return to the monitor prompt shown in step 3.

7.  For the new parameters to take effect, press the Reset
switch.

The firmware configuration parameters are described below:

Port Baud Rates     These parameters set the baud rates for the
                    console and auxiliary ports.  The default
                    rate for both is 9600.  The baud rate can be
                    set to 110, 300, 1200, 2400, 9600, 19200, or
                    38400 bps.  Databits is always set to 8 and
                    parity to none.  The console baud rate must
                    be greater than or equal to the auxiliary
                    rate.  If you select an incorrect setting,
                    the message "Auxiliary rate must be less than
                    console rate" appears, and the parameter
                    listing is redisplayed.

Automatic Reboot    If an error or exception condition occurs,
                    the GS reboots if this parameter is set to
                    "r" (Reboot only) or boots to the monitor if
                    it is set to "m" (Boot monitor).

                    The Boot monitor setting prevents the GS from
                    rebooting, thereby allowing you to take a
                    memory dump.  Making a memory dump is
                    described in the Network Management Guide.

Initial Boot Source The four options for the initial source
                    parameter are "m" (Monitor), "f" (Floppy),
                    "n" (Network), and "a" (Automatic).  On GSs,
                    this parameter should be set to Floppy.

                    When the initial boot source is set to
                    Floppy, the GS attempts to boot from its
                    floppy diskette.

                    When the initial boot source is set to
                    Monitor, the GS enters monitor mode after
                    passing the self-test and waits for you to
                    enter Monitor commands.  Setting the initial
                    boot source to Network is no applicable to a
                    GS.

Number of Reboots   If a fatal exception or internal software
                    error occurs, the GS increments a reboots
                    counter by one.  This parameter displays the
                    current value of this counter.  To set the
                    counter back to zero, set it to "R" (reset).

Network Boot String This parameter is used by servers that can
                    boot from an NCS.  It is not applicable to a
                    GS.

Drive Type          Both 96-tpi and 48-tpi disk drivers are
                    supported, although the GS/1-IP uses only a
                    96-tpi drive.  The 96-tpi drives have labels
                    affixed to their front to assist in
                    identification.