Ref: 99980034
Title: Release Note: CS/100 booting from NCS/1 Ver 20060
Date: 3/30/87

Copyright 3Com Corporation, 1991.  All rights reserved.

Software Release

SW/100-A/BSC-NCS/1 Version 20060

March 30, 1987

Part Number: 86-0101-00
.br;Revision 00


TO:          CS/100 Users

FROM:        Bridge Communications, Inc.

SUBJECT:     SW/100-A/BSC-NCS/1 Version 20060

DATE:        March 30, 1987

Enclosed is the distribution tape cartridge containing SW/100-
A/BSC-NCS/1 Version 20060. This software is for CS/100s that are
booted from an NCS/1.

This release memo contains the instructions for installing
software on the NCS/1. It also describes new features of and bugs
fixed in SW/100-A/BSC-NCS/1.

Installing Software on the NCS/1

To copy the software from the SW/100-A/BSC-NCS/1 Version 20060
tape cartridge to the NCS/1, follow these steps:

1.  After logging in to the NCS/1, hold the distribution tape
cartridge so that the window that contains the word "SAFE" is
in the top left corner. Insert the cartridge in the tape
drive slot at the top of the NCS/1 pedestal unit.

2.  Open the Utilities window on the screen by performing these
steps:

a.  Move the mouse on the mouse pad until the mouse cursor is
positioned on the UTIL icon at the bottom of the screen.

b.  Press the left mouse button to open the Utilities window.

c.  Release the mouse button.

3.  Move the mouse on the mouse pad until the mouse cursor is
positioned inside the Utilities window. At the utilities
prompt (NCS1%), type:

taperead

4.  When the file is copied from the tape to the disk, it will be
listed on the screen.

5.  If tape read errors or disk write errors occur, unload the
cartridge from the tape drive. Then reload it and reinvoke
the Taperead utility. If errors continue to occur, contact an
authorized Bridge service representative for assistance.



6.  When the file has been successfully copied, the utilities
prompt will reappear. Unload the tape cartridge.



Compatibility

SW/100-A/BSC-NCS/1 Version 20060 can operate with the following
products and software releases:

.br;CS/1-X.25 running SW/1-X.25 Version 14000 or later
.br;CS/1 running SW/1-A/BSC/SDLC Version 17100 or later
.br;CS/1-HSM running SW/1-HSM Version 11010 or later
.br;CS/1-SNA running SW/1-SNA Version 10000 or later
.br;GS/1 running SW/2-CS-ICS Version 14000 or later
.br;GS/3 running SW/3 Version 14000 or later
.br;GS/4 running SW/4 Version 10000
.br;GS/6 running SW/6 Version 10000 or later
.br;GS/300 running SW/300 Version 10000 or later
.br;GS/200 running SW/200-A Version 20000 or later
.br;IVECS running SW/IVECS-A Version 10000 or later
.br;NCS/150 running SW/150-NCS Version 10000 or later
.br;NCS/1 running SW/1-NCS Version 10010 or later
.br;PC running EtherTerm Version 12000 or later
.br;IB/1 and IB/2 running SW/IB Version 10000 or later

The following chart illustrates the software and firmware
compatibility for SW/100-A/BSC-NCS/1 Version 20060 and SW/100-
UTIL Version 36000:''
_______________________________________________________________
|                SOFTWARE/FIRMWARE COMPATIBILITY               |
|______________________________________________________________|
|   Product   |     Software   |            Firmware           |
|             |                |                               |
|             |                |        SIO            MCPU    |
|_____________|________________|_______________________________|
|  CS/100-A   |   SW/100-A/BSC |   SDL Rev. 4        MP Rev. 2 |
|             |   SW/100-UTIL  |   T0ASYN 5C         T1MMON 1B |
|             |                |   or later          or later  |
|             |                |   T1ASYN 1B                   |
|             |                |   or later                    |
|_____________|________________|_______________________________|
|             |                |                               |
|  CS/100-BSC |   SW/100-A/BSC |   SIOBSC Rev. 1     MP Rev.2  |
|             |   SW/100-UTIL  |   or later          T1MMON 1B |
|             |                |                     or later  |
|_____________|________________|_______________________________|


New Features

The following features, which were not present in SW/100-A/BSC-
NCS/1 Version 20050 or earlier, have been implemented in SW/100-
A/BSC-NCS/1 Version 20060:

1.  In addition to the SETDefault command, the SET command can be
used to alter the buffer size of an individual port. For
instance, to change the current buffer size of a port to 56
bytes, type:

set BUffersize = 56
To change the buffer size of the host, the REMoteSET command
can be used with the same syntax shown above.

Setting the buffer size to be smaller than the system buffer
size, which is usually 82 bytes, will actually create a
buffer of the specified size. If the specified value is
greater than the system buffer size, more buffers of the
system buffer size will be created instead of a bigger
buffer.

The SET command will not take effect immediately during a
session. The additional buffers created by the command will
not be used until the buffers currently allocated to the port
have been exhausted.

2.  It now takes 4 seconds for the Communications Server to
deliver the audit trail data to the NCS. It used to take 90
seconds.

The 4-second timer can be sysgenned. This is done by
modifying the Statistics Monitor timer value. Please refer to
the Configuration Guide for further information.

3.  The server will accept from the netmap packet a clock value
that is lower than the current value. For example, if the
clock on the NCS is set back to year 1970, all the system
clocks of the servers on the network will be changed within
45 seconds to this new value.

Bugs Fixed

The following problems have been corrected in SW/100-A/BSC-NCS/1
Version 20060:

1.  The audit trail records now show the actual number of rotary
ports used. In the past, the rotary ports used count was
always zero according to the audit trail records.



2.  It is no longer possible for a port to be trapped in the
WAIT-FOR-CONNECT state forever or for the PVC (Permanent
Virtual Circuit) to suddenly stop working.

3.  The data link drivers can now detect all known deadlock
situations properly.  Running the servers on a noisy network
will not crash the servers or cause the servers to drop from
the netmap.

Known Problems

The following is a list of current problems in SW/100-A/BSC-NCS/1
Version 20060:

1.  If you have not updated all of your CS/100s to SW/100-A/BSC-
NCS/1 Version 20000 or later, a connection from a CS/100 that
runs SW/100-A/BSC-NCS/1 Version 17100 or SW/100-A/BSC-NCS/1
Version 18610 to a CS/100 that runs SW/100-A/BSC-NCS/1
Version 20000 or later may cause a delay of approximately
four seconds.

2.  If the FlowControlTo and FlowControlFrom parameters are both
set to None, resetting one of the parameters to XonXoff or
ENQACK causes the other to be automatically set to XonXoff or
ENQACK. Note that this problem does not occur for the other
two options (None and CTSRTS).

3.  If your working software was SW/100-A/BSC-NCS/1 Version 20030
or earlier before being updated to Version 20060, the
LogoffString may contain garbage characters when the software
is first booted. In order to eliminate these garbage
characters, use the following command:

SETDefault LogoffString = ""

4.  Due to a memory limitation, the SHow CONFiguration and SHow
MACro commands no longer display output in alphabetical
order.

Procedure to Sysgen SW/100-A/BSC-NCS/1 Version 20060

Please refer to the NCS/1 Installation and Operation Guide for
information on running the sysgen program on the NCS/1.

System generation is not required before you install the
software. It is used to alter the values of certain parameters.
Bridge does not recommend altering those values without a
specific need.



Documentation

The current versions of the manuals for the CS/100 are listed
below:

+ Series/100 Installation Guide (10/85)

+ Connection Service User's Guide (8/86)

+ Connection Service User's Quick Reference Guide (12/85)

+ Network Management Guide (1/87)

+ Configuration Guide (1/87)

+ Getting Started Guide (1/87)

If you have any questions, please contact an authorized Bridge
service representative for assistance.


