RELEASE NOTES X.25 ECO02 for OpenVMS Alpha V7.1



  1  KIT NAME:

       X25ALP_E02B011



  2  KIT DESCRIPTION:

       2.1  Version of OpenVMS to which this kit may be applied:

            OpenVMS Alpha V7.1


       2.2  Kits superseded by this kit:

            None
      

       2.3  Files patched or replaced:

        o  SYS$COMMON:[SYS$LDR]X25$ZWDRIVER.EXE

        o  SYS$COMMON:[SYS$LDR]X25$ZWDRIVER.STB


       2.4  Problem Description

        o Stop ZWDRIVER needlessly consuming large amounts CPU time  on
          AlphaServer 4000 family systems.

        o On PBXDP boards with more than 2 ports, correctly report  the 
          state of the modem control signals of ports above  the  first
          two. (The previous driver incorrectly reported the  state  of 
          modem control signals for port 0 as the state  of  the  modem 
          control signals for each of ports 0, 2, 4 and 6 AND  reported 
          the state of the modem control signals  for  port  1  as  the 
          state of the modem control signals for ports 1, 3, 5 and 7.)

        o Ensure the state of the modem control signal  DTR  always  is 
          preserved across modifications to the register which controls 
          DTR.   Previously  the  board  read  the  port  register  and 
          inadvertently changed bit settings when doing so. The  change 
          corrects  this  situation   for   all   ports  on  the  PBXDP 
          synchronous communications card.



  3  INSTALLATION INSTRUCTIONS:

       Install this kit with the VMSINSTAL utility by logging into  the
       SYSTEM account, and typing the following at the DCL prompt:

         @SYS$UPDATE:VMSINSTAL X25ALP_E02B011 [location of the saveset]

       The  saveset  location may  be a tape drive, or a disk directory 
       that contains the kit saveset.

       This  system must be  rebooted for the new X25$ZWDRIVER image to
       be loaded.



       Copyright (c)  Digital Equipment  Corporation, 1998  All  Rights
       Reserved.   Unpublished rights reserved under the copyright laws 
       of the United States.

       The  software  contained on  this  media is  proprietary  to and 
       embodies   the  confidential  technology  of  Digital  Equipment  
       Corporation.   Possession, use, duplication, or dissemination of 
       the software  and media  is  authorized only pursuant to a valid 
       written license from Digital Equipment Corporation.