Ref: 99980117
Title: SW/200-A/BSC/SDLC-NCS/1 Version 20080
Date: 1/13/88

Copyright 3Com Corporation, 1991.  All rights reserved.

Enclosed is a tape cartridge containing SW/200-A/BSC/SDLC-NCS/1
Version 20080.  This tape is your distribution copy of the
software and should be used only to copy the software onto the
NCS/1.

This release memo describes the new features of and bugs fixed in
SW/200-A/BSC/SDLC-NCS/1 Version 20080.

.h1;Compatibility

SW/200-A/BSC/SDLC-NCS/1 Version 20080 can operate with the
following hardware products and software releases:

  CS/1-X.25 running SW/1-X.25 Version 14000 or later
  CS/1 running SW/1-A/BSC/SDLC Version 17100 or later
  CS/1-HSM running SW/1-HSM Version 11010 or later
  CS/1-SNA running SW/1-SNA Version 10000 or later
  CS/100 running SW/100-A/BSC Version 15000 or later
  GS/1 running SW/2-CS-ICS Version 14000 or later
  GS/3 running SW/3 Version 14000 or later
  GS/4 running SW/4 Version 10000 or later
  GS/6 running SW/6 Version 10000 or later
  GS/300 running SW/300 Version 10000 or later
  IVECS running SW/IVECS-A Version 10000 or later
  NCS/1 running SW/1-NCS Version 10000 or later
  NCS/150 running SW/150-NCS Version 10000 or later
  NCS/AT running SW/AT-NCS Version 11000 or later
  IB/1 and IB/2 running SW/IB Version 10000 or later
  Personal computer running EtherTerm Version 12000 or later

Table 1 illustrates the software and firmware compatibility of
SW/200-A/BSC/SDLC-NCS/1 Version 20080.

________________________________________________________
|        Table 1  Software/Firmware Compatibility       |
|_______________________________________________________|
|        |                         |                    |
| Product|         Software        |     Firmware       |
|        |                         |                    |
| CS/200 |  SW/200-A/BSC/SDLC-NCS/1|  C1MMON Rev. 01C   |
|        |                         |  or later          |
|________|_________________________|____________________|

.h1;Firmware Configuration

Although there is no console connector on the back panel of the
CS/200, you can configure the firmware to designate any port as a
console port. For the standard shipping configuration, there is
no designated console port.  The default value of the Initial
Boot Source parameter is Network, and the default value of Auto-
reboot is Reboot only.

After you power on or reset the CS/200, the Self Test LED lights
for approximately 20 seconds.  It turns off when the CS/200
completes the self-test diagnostics.  Then the Boot State LED
lights, indicating that the CS/200 is entering the boot phase.
If the Boot State LED is off, check whether a console port has
been enabled, because an enabled console port causes the CS/200
to enter Monitor mode instead of the boot phase.  Follow these
steps to reboot the CS/200:

1.  Attach a terminal to the console port of the CS/200.

2.  Type "fc" to enter the Firmware Configuration menu.

3.  After the firmware configuration utility commands appear on
the screen, type "c" to change the parameters.

4.  A menu showing the current parameters and their settings is
displayed.  Select "6" to change the Auto-reboot parameter.

5.  Change the Auto-reboot parameter from "m" to "r".

6.  After the list of parameters is redisplayed, change the
Initial Boot Source parameter from "m" to "n".

7.  After the list of parameters is redisplayed, change the
Monitor parameter from "e" to "d".

8.  Select Q to return to the previous menu.

9.  Select E to exit to the monitor.

10.  After you return to the monitor prompt, press the Reset
switch to exit Monitor mode.

For further information on firmware configuration parameters and
screen displays, refer to the Series/200 Installation Guide.

.h1;Installing Software on the NCS/1

Because the CS/200 is a diskless unit, it must be supported by a
Network Control Server.  You must copy SW/200-A/BSC/SDLC-NCS/1
Version 20080 from the tape cartridge to the NCS/1 before the
software can boot the CS/200.  Refer to the Series/200
Installation Guide for the startup procedure and to the NCS/1
Installation and Operation Guide for the copy procedure.

.h1;New Features

The following is a list of the features of SW/200-A/BSC/SDLC
Version 20080 that were not present in SW/200-A/BSC/SDLC Version
20070 or earlier:

1.  The time between the disconnection of a current session and
the connection of a call queued to a CS/200 port has been
increased to at least 30 seconds in SW/200-A/BSC/SDLC
Version 20080.  This feature ensures that slow DTR toggling
by the host does not affect the queued calls.

2.  A host can initiate the flushing of a virtual circuit
between a CS/200 and itself.

.h1;Bugs Fixed

The following problems, which existed in SW/200-A/BSC/SDLC
Version 20070 or earlier, have been fixed in SW/200-A/BSC/SDLC
Version 20080:

1.  Previously, when the InterAction parameter was set to
NoMacroBreak, pressing the break key during the execution
of a macro would cause unpredictable results.  In SW/200-
A/BSC/SDLC Version 20080, pressing the Break key terminates
the current command within the macro.  Execution will
continue at the next line in the macro.

2.  When the terminal is in Data Transfer mode, pressing the
Break key and immediately typing characters no longer
causes the port to lock up.

3.  All clearinghouse requests are transmitted as BTP (Bridge
Transaction Protocol) packets.  Previously, when a
clearinghouse request is retried, the request was
transmitted as a PEP (Packet Exchange Protocol) packet,
which is not understandable to all clearinghouse servers.

4.  The SHow STAT <Hour> command displays statistics for the
time specified.  Previously, the displayed statistics were
for one hour earlier than the time requested.

5.  When set to CTSRTS, the FlowControl parameters now cause
the transmit data stream to stop within three byte times
instead of one packet time.

6.  When the CS/200 receives a netmap packet, its clock is set
to the time on the netmap packet.  Previously, this
happened only when the time received from the netmap packet
was ahead of the time on the CS/200.

7.  The CharacterCOde parameter can be changed from EBCDIC to
ASCII after the LinePRotocol parameter has been set to
BYTEsynchronous. Previously, the CharacterCOde parameter
could not be changed.

8.  The CS/200 no longer locks up when the datalink layer runs
out of buffers due to extremely bursty traffic on the
Ethernet network.

.h1;Documentation

The current versions of the manuals for the CS/200 and network
planning are:

 + NCS/1 Installation and Operation Guide (3/86)
 (Part number: 09-0065-00)

 + Series/200 Installation Guide (6/87)
 (Part number: 09-0060-01)

 + LAN Planning Guide (9/86)
 (Part number: 09-0085-00)

 + Connection Service User's Guide (11/87)
 (Part number: 09-0063-02)

 + Getting Started Guide (2/87)
 (Part number: 09-0043-01)

 + Network Management Guide (9/87)
 (Part number: 09-0067-02)

 + Configuration Guide (1/87)
 (Part number: 09-0093-00)

If you have any questions, contact an authorized 3Com service
representative for assistance.



