TECHNICAL INFORMATION DOCUMENT

TITLE:              PTF135 - 3C507/3C5x9 Driver Update
DOCUMENT ID:        TID300021
DOCUMENT REVISION:  B
DATE:               25JAN95
ALERT STATUS:       Yellow
INFORMATION TYPE:   Symptom Solution
README FOR:         PTF135

PRODUCT and VERSION:
UnixWare 1.1

ABSTRACT:

The ptf135 file contains PTF135 - 3C507/3C5x9 Driver Update. This patch
contains updated drivers for the 3Com EtherLink 16 (3C507) and 
3Com EtherLink III (3C5x9) network adaptor cards.  The updated drivers 
resolve "intermittent loss of network connection" problems present in the 
currently installed versions.  This patch should be installed on all 
UnixWare 1.1.1 systems which have the el16 (3C507) and/or el3 (3C5x9) 
Ethernet drivers installed.


SYMPTOM

Updated drivers resolve "intermittent loss of network connection" problems
present in the currently installed drivers.

Version 1.1 of this patch additionally corrects an error in the 3C507 driver
that causes a system crash when the network adapter card has only 16K of
on-board RAM.

Version 1.2 also corrects an error in the 3C5x9 driver that causes a system
crash when the Internet Utilities package is not installed.

SOLUTION

Apply the ptf135 file.


Installation Instructions:

DATATYPE: datastream


1.  Download the ptf135.Z and the ptf135.txt files to the /tmp directory
    on your machine.

2.  Read the release notes contained in this file.            

3.  Now become root, uncompress the file and add the package to your 
    system using the following commands:

     $su
     #uncompress /tmp/ptf135.Z
     #pkgadd -d /tmp/ptf135 ptf135

Solution Specifics

1. General Description

This patch contains updated drivers for the 3Com EtherLink 16 (3C507) 
and 3Com EtherLink III (3C5x9) network adaptor cards.  The updated 
drivers resolve "intermittent loss of network connection" problems 
present in the currently installed versions.

Version 1.1 of this patch additionally corrects an error in the 3C507 
driver that causes a system crash when the network adapter card has 
only 16K of on-board RAM.

Version 1.2 also corrects an error in the 3C5x9 driver that causes a 
system crash when the Internet Utilities package is not installed.

2. New Features

None

3. Software Notes and Recommendations

This patch should be installed on all UnixWare 1.1.1 systems which have 
the el16 (3C507) and/or el3 (3C5x9) Ethernet drivers installed.

This patch requires UnixWare Update 1.1.1 and either the el16 or el3 
driver to be installed on the system.  The package will NOT install 
if the required system configuration is not present.

The drivers being replaced allow ambiguous specification of the 
Cable Type parameter (the same value is used for multiple cable types), 
while the new drivers require each cable type to be uniquely identified.  
As a result, the current cable type configuration data will be displayed 
(as it will be interpreted by the new drivers) prior to beginning 
installation.  This information will NOT be correct in all cases and 
should be modified as appropriate to reflect the cable type attached 
to each board.

NOTE: This patch requires update 1.1.1, is replaced by update 1.1.2 and
modifies same files as ptf154


4. Hardware Notes and Recommendations

None 

5. Installation Instructions

Depending on the format:

If this PTF was delivered on a diskette, then (as "root")

        # pkgadd -d diskette1

should install this patch.

Otherwise, if you have a file such as "ptf135" which is in a "stream" format,
then (as "root")

     # pkgadd -d <pwd>/ptf135 

will work.
     
After installing this patch, a system reboot will be need to rebuild the
kernel and incorporate the updated drivers.

6. Troubleshooting
     
If, after installing this patch, network problems are still encountered, 
the "netstat" command may be helpful in determining whether or not network
connections are still active.