Ref: 99980110
Title: SW/200-TCP-PKTGEN-NCS/AT Version 20100
Date: 9/29/88

Copyright 3Com Corporation, 1991.  All rights reserved.

Enclosed is a distribution diskette containing SW/200-TCP-PKTGEN-
NCS/AT Version 20100 (part number: 83-0169-01) to be used on
Series/200 products that are booted from an NCS/AT.

This release memo describes the procedure for testing your
network with SW/200-TCP-PKTGEN-NCS/AT Version 20100, and lists
the software's main features and known problems.

.h1;Compatibility

SW/200-TCP-PKTGEN-NCS/AT Version 20100 operates with the
following products and software releases:

    CS/1 running SW/1-TCP Version 20000 or later
    CS/50 running SW/50-TCP Version 13010 or later
    CS/100 running SW/100-TCP Version 19000 or later
    CS/200 running SW/200-TCP Version 20100 or later
    NCS/150 running SW/150-NCS-TCP Version 11000 or later
    NCS/AT running SW/AT-NCS Version 11000 or later
    NCS/2 running SW/2-NCS Version 10000 or later
    Personal computer running SW/PCS-TCP Version 20000 or later
    IB/1, IB/2, and IB/3 running SW/20-IB Version 11000 or later

The following table illustrates the firmware and hardware
compatibility of SW/200-TCP-PKTGEN-NCS/AT Version 20100:

            Firmware/Hardware Compatibility
-----------------------------------------------------------
 Product       Software                Firmware


  CS/200      SW/200-TCP               C1 MMON
              PKTGEN-NCS/AT            01C or later

  CS/200-B    SW/200-TCP-              D2 MMON 00B
              PKTGEN-NCS/AT            or later

  CS/210      SW/200-TCP               F2 MMON 01D
              PKTGEN-NCS/AT            or later

.h1;Installation

                      ** NOTE **

When following the instructions in this release memo, be sure
to press the Return key after typing each command.

If you wish to make a copy of SW/200-TCP-PKTGEN-NCS/AT Version
20100, you should use a blank, 96-TPI, double-sided, high density
diskette.

Because your CS/200 or CS/210 is booted from an NCS/AT, you
should install SW/200-TCP-PKTGEN-NCS/AT Version 20100 on the NCS/
AT, using the procedure described in Section 6.3 of the NCS/AT
Installation and Operation Guide.

After copying the software, bind the CS/200 or CS/210 to the NCS/
AT using the BInd command.  You must specify the bootfile name to
be "cs200tp.20100" when you enter the BInd command so that the
proper system software is downloaded from the NCS/AT to the CS/
200 or CS/210.

.h1;Testing Your Network

Use the following procedure to test your network with SW/200-TCP-
PKTGEN-NCS/AT Version 20100:

1.  Verify that the Series/200 product is bound to the NCS/AT on
which you have just installed SW/200-TCP-PKTGEN-NCS/AT
Version 20100.

2.  Boot the Series/200 product from the NCS/AT according to the
procedure described in the Series/200 Installation Guide.

3.  Set the privilege level to global network manager using the
SET PRIvilege command.

4.  Assign ports 26 through 61 on the Series/200 product to a
rotary.  For example:

    rotary !128=!26-!61

5.  Assign an unused Internet address to the rotary defined in
step 4.  For example:

    setdefault (!128) ip=192.9.200.1

6.  From a terminal attached to a second Communications Server on
the network, make a connection to the address assigned in
step 5.  For example:

    connect 192.9.200.1

A welcome message is displayed on the screen.

7.  Press any key except the Break key on the termnal attached
to the second Communications Server.  The PKTGEN> prompt
appears on the screen.

8.  Begin transmission of test packets by typing the following
command on the terminal attached to the second
Communications Server.

    g

This command transmits test packets from the CS/200 or CS/210
running SW/200-TCP-PKTGEN-NCS/AT Version 20100 via the second
Communications Server to the terminal from which the command
was entered.  Each packet is represented on the screen by one
line of data.  Data blocks, consisting of 22 lines of data
and a header line, are transmitted every two seconds.

If you wish to change this format, refer to the "Features"
section in this release memo for information on changing the
parameters in SW/200-TCP-PKTGEN-NCS/AT Version 20100.

Inspect the display on the terminal screen.  The characters
should line up in vertical columns.  Irregular rows and
columns indicate lost characters.

Let the packet generator run for at least one hour.  Test
results are most reliable if the transmission is allowed to
continue for several hours.  3Com recommends running the
tests for 24 hours in order to measure the effect of any
daily transcient factors (e.g., electrical machinery starting
in the morning on a business day) and to get a reference base
of error rates for your installation.

9.  To stop the tests, suspend transmission of test packets by
pressing the Break key.  Transmission of test pacekts may be
resumed by entering the command:

    g

10. After stopping the tests, return the terminal port to Command
mode by entering the ECMChar (usually <CTRL-^>).

11. Terminate the connection by entering the following command:

    dc

.h1;Features

SW/290-TCP-PKTGEN-NCS/AT Version 20100 has the following
features:

1.  Series/200 product users can connect to virtual ports 26
through 61 to run SW/200-TCP-PKTGEN-NCS/AT Version 20100.

2.  The format of data blocks generated by SW/200-TCP-PKTGEN-NCS/
AT Version 20100 can be modified by changing the values of
the parameters in SW/200-TCP-PKTGEN-NCS/AT Version 20100.

To display these parameters, press "?" at the PKTGEN> prompt.

The following list provides a brief description of each of
the parameters in SW/200-TCP-PKTGEN-NCS/AT Version 20100:

    a.  The "l" parameter determines the number of lines
        generated by each data block.

        For example, to transmit data blocks with 30 lines each,
        type the following at the PKTGEN> prompt:

        l 30

        The default value of this parameter is 22, and the
        possible values are 1 through 32767.

    b.  The "s" parameter determines the number of seconds
        between data block tranmissions.

        For example, to allow 5 seconds to elapse between data
        block tranmissions, type the following at the PKTGEN>
        prompt:

        s 5

        The default value of this parameter is 2, and the
        possible values are 1 through 32767.

    c.  The "h" parameter determines whether the data block is
        transmitted with or without a header.  The header is the
        first line of the data block and provides information
        regarding the date and server.

        For example, to transmit the data block without a header,
        type the following at the PKTGEN> prompt:

        h 0

        The default value of this parameter is 1, which transmits
        the data block with a header, and the possible values are
        1 or 0.

    d.  The "g" parameter determines the number of data blocks to
        be sent.

        For example, to send 50 data blocks, type the following
        at the PKTGEN> prompt:

        g 50

        The default value of this parameter is 0, which transmits
        data blocks until the user presses the Break key.  The
        possible values are 0 through 32767.

.h1;Known Problems

If users of SW/200-TCP-PKTGEN-NCS/AT Version 20100 enter commands
faster than the terminal can echo them, these commands are lost.

.h1;Documentation

The following manuals provide related information:

*   Series/200 Installation Guide (10/87)
    (Part Number: 09-0151-00)

*   NCS/AT Installation and Operation Guide (2/88)
    Part Number: 09-0092-02

*   Getting Started Guide (2/87)
    (Part Number: 09-0043-01)

*   Network Management Guide (9/87)
    (Part Number: 09-0067-02)

*   LAN Planning Guide (2/88)
    (Part Number: 09-0085-01)

*   Connection Service User's Guide for XNS and TCP/IP Protocols
    6/88)
    (Part Number: 09-0145-00)

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