Conference noted::hackers_v1

Lee K. Gleason again !!!!


Newsgroups: comp.os.vms
Path: decwrl!decvax!ucbvax!XEROX.COM!"Eric_S._Fanwick.STHQ"
Subject: Re: Measuring the load on Ethernet
Posted: 15 Apr 87 15:32:42 GMT
Organization: The ARPA Internet
 
In this months PAGESWAPPER  Lee K. Gleason documented a patch to the
Monitor Utility that  allow some here to hiden classes of Monitor to
work. One of the classes will allow the monitoring of Ethernet from VMS.
 
Warning: Since it is undocumented DEC will not support this "feature" of
VMS.
 
Good Luck.
 
Eric S. Fanwick
Systems Engineer
Xerox Corporation
 
The Patch is listed below.
 
$ set default sys$common:[sysexe]
$patch monitor.exe
REPLACE 4158+33E
211
EXIT
11
EXIT
REPLACE 4158+391
211
EXIT
11
EXIT
REPLACE 4158+48A
235
EXIT
35
EXIT
REPLACE 4158+583
211
EXIT
11
EXIT
REPLACE 4158+629
211
EXIT
11
EXIT
UPDATE
EXIT
$INSTALL :==$INSTALL/COMMAND_MODE
$ INSTALL
REPLACE SYS$COMMON:[SYSEXE]MONITOR.EXE
$ EXIT

    The patch doesn't seem to work on VMS F4.6... Since it came
    from outside DEC it must be for V4.5 (latest released code).
    
    You will get the same msg. if you just enter MONITOR> mon
    
    Jon
    

    
                            VAX/VMS Monitor Utility
                              ETHERNET STATISTICS
                                 on node TREK
                               6-MAY-1987 23:21:07

                                       CUR        AVE        MIN        MAX

    Packets/second                  276.49     276.49     276.49     276.49
    Kbytes/second                    58.27      58.27      58.27      58.27
    Packet size                     215.00     215.00     215.00     215.00

    Multicast Packets/second         46.02      46.02      46.02      46.02
    Multicast Kbytes/second           5.96       5.96       5.96       5.96
    Multicast Packet size           133.00     133.00     133.00     133.00

    Trans Single Collision            0.00       0.00       0.00       0.00
    Trans Multiple Collision          0.00       0.00       0.00       0.00
    Trans Initially Deferred          0.00       0.00       0.00       0.00

    Internal Buffer Error             0.00       0.00       0.00       0.00
    Local Buffer Error                0.00       0.00       0.00       0.00
    Buffer Unavailable                0.00       0.00       0.00       0.00

For a program that monitors the same statistics and more, pick up a copy of:

		VIDEO::USER$5:[LEICHTERJ.TOOLS]DEUNA.EXE
		VIDEO::USER$5:[LEICHTERJ.TSRC]DEUNA.PAS

NOTE:  I didn't write this program - which appeared in a DECUS publication and
was distributed on INFO-VAX a while back.  I made some minor changes, but I
don't know PASCAL, so can't help you if it goes wrong.

From what I understand of the code, the whole thing should be re-written
from scratch.

To use the program, just run it; it knows the names of all the common Ethernet
devices (XEA0, XQA0, ETA0, ESA0) and will monitor any one it finds.  Or define
a foreign command line to start it and provide the name of the device on
the command line.

Both DEUNA and MONITOR ETHERNET suffer one annoying problem:  Only one user
at a time, on any given machine, can run them, since they start up a single-
user protocol type.  (DEUNA and MONITOR ETHERNET use different protocols, so
don't interfere with each other.)  Presumably this is one reason why MONITOR
ETHERNET is not supported....
							-- Jerry

    Has anyone got a patch for 4.6?
    
    Brendan.