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[ Pobierz całość w formacie PDF ]ETHLOAD user's guide 40ETHLOAD 1.04USER'S GUIDEA simple freeEthernet load/problems analyzerand events tracerE. Vynckevyncke@csl.sni.be16 January 19941. Introduction.ETHLOAD is a free software running on any MS-DOS PC with anEthernet controller.Currently, ETHLOAD supports the following drivers (forEthernet and Token Ring):- Digital Equipment Corp. DLL specification;- Microsoft 3Com NDIS (Network Driver InterfaceSpecification);- packet driver as issued from PC/TCP, Clarkson Universityor from the Crynwr collection;- Novell ODI (Open Datalink Interface) if the driversupports promiscuous mode;- ASCII file containing Ethernet frames;- loopback driver (mainly for debugging purposes).The purposes of ETHLOAD are twofold:- display very simply non accurate numbers about theEthernet load (number of frames/sec, bits/sec, ...);- display important parameters, events and loads for theTCP/IP, DECnet, OSI, XNS, NetWare and Netbeui protocols.ETHLOAD allows you to:- check simply the load of your Ethernet (with errorrate, inter frame gap,...);- check which host is sending most of frames;- see which host is sending to which host;- see what kind of protocols are in use in yourEthernet;- ...In a TCP/IP network, ETHLOAD allows you to:- see ARP table contents;- see which host is sending (un)resolved ARP probes;- see the IP host which is sending most of the IP, UDPor TCP packets;- see what kind of protocols are in used (either TCP orUDP);- see which is the mostly used telnet/rlogin server (orclient);- see the boot sequence with important BOOTP and TFTPevents;- see some characteristics of IP hosts (fragments size,MTU, IP retransmission, options used -- includingsource routing, ...);- see main RFC 1001/1002 NetBIOS events and names;- see the working of DNS;- see important TCP events: start/stop ofconnections,...In a DECnet network, ETHLOAD allows you to:- see which node are sending/receiving most of DECnetpackets;- see all Connect Initiate packets (including objectnumber, ...) ;- see returned packets;- ...In an OSI network, ETHLOAD allows you to:- see the top transmitter/receiver NSAP;- see what happens with TUBA (TCP & UDP with BigAddresses);- see the exchange of information between ES and IS andbetween IS;- see important events for the transport layer:connection/disconnection, TSAP are displayed inhexadecimal, ASCII and EBCDIC.In a Microsoft NetBEUI network, ETHLOAD allows you to:- see the main naming events;- see the connections and the datagrams.In a Novell NetWare network, ETHLOAD allows you to:- see the routers;- see the different XNS/IPX networks;- see the advertised services ;- see who is connected to who.* * ** **2. Miscellaneous and acknowledgements.2.1. Original copyright.This software is based on the very first version of ETHLOADI have developed while I was working in a company calledNetwork Research Belgium. This version was already free andin the public domain thanks to the management of thiscompany.Here follows the copyright included in the source files ofabout 0,1% of the current version of ETHLOAD./* This software and documentation can be copied, used,modified freely as long as:- the source contains this text- this software, documentation is provided free of charge(but for the cost of media: paper, CD-ROM, ...).Network Research Belgium and the individuals who have writtenthis software DO NOT ASSUME any responsibilities in respectto the use, (un)expected side -effects of this program.The software and documentation is provided as it is. Nomaintenance will be given.Anyway, we would be pleased to hear of any use of thesesoftwares by email, fax:bert@nrb.befax: +32.41.48.11.70Suggestions, modifications are always welcome.These softwares have been developed by a special team calledBERT in a company called Network Research Belgium located inHerstal, Belgium, Europe .This team includes:Eric Vyncke, vyncke@nrb.be now vyncke@csl.sni.beFrederic Blondiau, blondiau@nrb.beMichel Ghys, now mghys@cisco.comMarie-Christine Timmermans, timmermans@nrb.beJean Hotterbeex, now jhotterb@cisco.comManu Khronis, khronis@nrb.beVincent Keunen, keunen@manex.uucp*/2.2. Current copyright and disclaimer.Right now, all software developments are made home andtested after working hours in my current company: SiemensNixdorf Informationsystems, SNI. So, here follows the usualdisclaimer: Siemens Nixdorf and NRB are by no meansresponsible for any good or bad effects of this program.And by the way, the quality of ETHLOAD does not reflect theusual quality of NRB or SNI software.NRB, Siemens Nixdorf and the author do not support thissoftware and are, in no case, responsible for any bad useor any bad effect or any false result or anything caused byany version of ETHLOAD.2.3. Support.If you have problems to run ETHLOAD, please read carefullythis manual and also check the common pitfalls in appendixA.4.The UseNet comp.protocols.tcp-ip.ibmpc newsgroup is theright place to state your problems, to comment on ETHLOAD,... I'm reading this newsgroup every day (together withcomp.sys.novell and the BITNET mailing list about NOVELLand PATHWORKS). This if the preferred way to get some'support'.Anyway, you can get some support from the author since hewants to promote this software... You can reach the authorthrough email: vyncke@csl.sni.be1, X.400:/c=be/admd=rtt/prmd=sni/o=siemens nixdorf/ou1=liege/ou2=L1/ou3=D1/ou4=csl/g=eric/s=vyncke/ or by post mail:Eric VynckeRue Nolden, 25B-4432 AlleurBelgium (Europe).If you are happy with ETHLOAD, my little son, Pierre, wouldappreciate to receive any postcard (he is still very youngand still lives with us :-)!Due to the large 'success' of ETHLOAD, I'm no more able toreply to all questions or comments addressed to my emailaddress... So, you are strongly urged to try thecomp.protocols.tcp-ip.ibmpc newsgroup.In no case, shall I answer to phone calls at my office(except for those of you who are working for a company ofthe Siemens group)... Don't forget that I am paid bySiemens Nixdorf and that I have a lot of work to do at theoffice :-)2.4. Distribution channel.I have no access to internet, so I cannot place ETHLOAD onanonymous FTP server, if you run such a server I willappreciate that you reserved some place for ETHLOAD on yourBBS or anon FTP server...If you do so, please warn me by email in order to keep alist of distribution channels.Normally, ETHLOAD is available as package calledETHLDvrr.ZIP (where vrr are version and release numbers)from the Simtel repository (aka oak.oakland.edu) in/pub/msdos/lan and also inub4b.eunet.be:/pub/ub4b/network/msdos. A companion program... [ Pobierz całość w formacie PDF ]
