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In article <1992Aug18.193054.12898@debbie.cc.nctu.edu.tw>,
	u8023506@cc.nctu.edu.tw writes:
>    I am looking for source code of Beholder - The SNMP-able Ethernet Monitor.
> If someone know where I can get it, please tell me.
> Thanks in advance !!
>                                                   Tomous Liaw
>                                            u8023506@cc.nctu.edu.tw
>                                        Institute of Computer & Information Sci.
Here is (part of) the USERMAN.DOC, hope this helps.
If anybody knows of a newer version of either beholder of gobbler,
please let me know - thank you,

Edi Landau.
=====================================================================
The SNMP-able Ethernet Monitor

By the DNPAP development group
JPMvOorschot@et.tudelft.nl
5/7/91

	The Beholder
The Beholder is a software-only product that implements a ethernet network
monitor on standard PC hardware. The data collected can be obtained in
three different ways, by looking at the PC screen, by requesting the data
as SNMP variables, and by using TFTP to collect files with data.  A standard
ethernet Local Area Network (LAN) can contain several Beholder monitoring
stations, each containing several network interfaces. Normal use will be to
collect the data of all present Beholder stations to the network management
node via SNMP. This data can then be processed to obtain problem reports,
growth figures and performance measurements.

The Beholder was developed by the Data Network Performance Analysis Group
(DNPAP) of the Delft University of Technology. It is used as an important
data collector in the "Intelligent Network Management  (INEMA)" project.
This project seeks to apply automated reasoning techniques to network
managements.

Main design goals of The Beholder were:

	.	Minimum loss of packets
	.	Continues operation
	.	Appliance to Standards wherever possible.
	.	Ease of Use
The result of the developments is a PC based software package,  capable of
monitoring all traffic on one or more ethernet segments. The Beholder can
be easily integrated in a SNMP based network management environment like
Sun Net Manager.
	
Hardware and Software
The Beholder software runs on a standard 80<x>86 based Personal Computer,
containing a network interface for which a "packet driver" network device
driver is available. The Beholder was developed in ANSI C using the
Microsoft C 6.0 compiler and two very small assembler files. For busy
ethernet network, the PC should be at least a 80286 at 10 Mhz, but a 80386
at 20 Mhz to  be save.

The WD 8003 family of ethernet cards is the preferred choice for ethernet
network interface, but the 3COM line and the Novell NI1000/2000 will work fine.

If the Beholder is used as monitoring station in combination with a network
management station that collects the measurement data, no keyboard, mouse or
display are needed as far as The Beholder is concerned. If The Beholder is
used stand-alone, a standard PC display (colour is nice), keyboard and mouse
can be used to view the results of the monitoring PC. The Beholder uses no
graphics.
=====================================================================

edi@vms.huji.ac.il writes:

>In article <1992Aug18.193054.12898@debbie.cc.nctu.edu.tw>,
>	u8023506@cc.nctu.edu.tw writes:
>>    I am looking for source code of Beholder - The SNMP-able Ethernet Monitor.
>> If someone know where I can get it, please tell me.
>> Thanks in advance !!
>>                                                   Tomous Liaw
>>                                            u8023506@cc.nctu.edu.tw
>>                                        Institute of Computer & Information Sci.
>Here is (part of) the USERMAN.DOC, hope this helps.
>If anybody knows of a newer version of either beholder of gobbler,
>please let me know - thank you,
Well, we're working link crazy to build 'The Beholder, The Next Generation'.
But meanwhile the current version is available (without the source code)
at our FTP server: dnpap.et.tudelft.nl
which is also reachable via our mailserver at the same adres: dnpap@dnpap.et.tudelft.nl

Greetings, Alfred
--
-- Ir. Alfred Kayser. PACS, OS/2, TCP/IP. --- Email: AKayser@et.tudelft.nl --
-- CARDIT, Delft University of Technology ------------ Tel: (31)-15-786179 --
-- P.O.Box 5031, 2600 GA Delft, The Netherlands ------ Fax: (31)-15-784898 --

In article <1992Aug18.193054.12898@debbie.cc.nctu.edu.tw> u8023506@cc.nctu.edu.tw (By SWH Maybe catch by someone from NTHU ) writes:
>
>   I am looking for source code of Beholder - The SNMP-able Ethernet Monitor.
>If someone know where I can get it, please tell me.
>Thanks in advance !!

If memory serves, you should be able to FTP the MS-DOS code from
The University of Delft, Netherlands.  As for the source, I cannot
say.

However, you may want to repost this question in comp.protocols.tcp-ip,
as I've seen some dialogue on this in the past.

Apologies for being so vague.

>                                                  Tomous Liaw
>                                           u8023506@cc.nctu.edu.tw
>                                       Institute of Computer & Information Sci.
>  


-- 
Jim Carroll - carrollj@wm-mercer.ca
-{ Standard Disclaimer in effect .... }-
"Ich weiss nicht, was soll das mir bedeuten."