User Manual - DVS Informatics
Contents
1. e Cn e Figure 8 MIB Browser displaying part of TCP MIB 16 DVS NMS User Manual Release 1 2 3 2 8 SNMP SET using MIB Object Editor MIB Object Editor allows SNMP SET command Using this editor user can issue SNMP set command to any writeable SNMP object and change it its values But the modification of MIB objects value can be done only after proper authentication To change the value of any MIB variable click on the value of the MIB variable which is already displaying in the value panel beside MIB tree and user will get the SET window if authenticated already if not then user will be asked to check the SET box which will present user an Authentication window to authenticate himself to server Same time user have to enter proper community name for SETting the MIB variable in Community Name text box beside SET check box The user will be prompted for authentication Enter the username and the password which was given during configuration Authentication Window User Name m uzema Password II ok Figure 9 Authentication before SNMP SET Enter the value to be modified in the leaf node In case of table user can directly enter the value in the table and after pressing ENTER client sends the SET request for this object to DVS NMS server The server then sends the SNMP SET message to the corresponding agent and then server respond to client with the result of t2. DVS NMS SNMP Based Network Management System User Manual Release 1 2 Date October 2000 DVS Informatics Pvt Ltd 31 Electronics Complex Indore MP 452010 INDIA Ph 91 731 230024 Fax 91 731 552560 Email inquiry dvsinfo com www dvsinfo com DVS NMS User Manual Release 1 2 Copyright DVS Informatics Pvt Ltd All rights reserved This publication and its contents are proprietary to DVS Informatics Pvt Ltd No part of this publication may be reproduced in any form or by any means except for the party to which this proposal is submitted without the written permission of DVS Informatics Pvt Ltd Indore INDIA 2 DVS NMS User Manual Release 1 2 About the document Congratulations on working with DVS NMS System This user friendly software is developed for managing SNMP Compatible Network Elements like Hubs Routers Hosts Switches Print Servers etc The User Manual is divided into three chapters The first chapter deals with Introduction of DVS NMS system and the features of it It describes the architecture and functions of two modules in the system the DVS NMS SERVER and DVS NMS CLIENT The second chapter deals with installation and configuration of the system The third chapter deals with using the various features present in the system 3 DVS NMS User Manual Release 1 2 1 2 3 OVERVIEW ttt aon 6 1
3. interfaces etc while clicking on particular Segment will show details of that Segment i e table of all the hosts and routers in the subnet Similarly routers and host specif brief details can be observed in bottom panel NMS also discover NetBIOS domains in the network and show the domainwise listing of hosts Also it fetches the NetBIOS names of the hosts if SNMP configured names are not available Et OVS MMS Client Ver 1 2 File Edit Tools Trap Options Help 33 Wy Network E 73 Routers 28 Hosts 053 e 1003 5 LABTEST e 55 Ej 73 Seqmerts 1002 0 e 1003 0 El 73 Domains OVSINFO Router Name timun2 dvsinfo com Interfaces Filerface No irterface IP Addrees MAC Address 1 Software Loopback 127001 NA Up 3 Eterna CSMACD 10 0 22 00 00 21 E1 80 8B UP 4 Ethernet CSMACO 10 0 32 COTAOAZE 5 202 55 223195 INA UP No Trap visiting V Figure 4 Autodiscovered Network 11 DVS NMS User Manual Release 1 2 By right clicking on the nodes of routers and hosts it will display pop up menu there From which user can select the action Like he can select to open the MIB Browser later explained to browse MIB of that router host or he can ping explained later to that router host whose results are also displayed in the bottom panel 3 2 2 Drawing Autodiscovered Network NMS can draw autodiscoverd network in ver
4. 1 6 12 ee RAR 6 1 3 ARCHITECTURE 7 1 3 1 DVSNMSServ6f s ntt nn 7 1 3 2 DVS NMS CHentzi t stia utente deine 7 INSTALLATION AND CONFIGURATION 8 2 1 2 SETTE OR Ate 8 2 2 5 22 8 2 3 CONFIGURATION OF SERVER 2 5 aseo 8 2 4 CONFIGURATION OF CEIENT 43 2 5 ete edes o eue Exo eve Fede XE EN EUER EX ode 9 RUNNING 10 3 1 RUNNING THE SERVER sino RBVCH TNR RESET IDA rU eve Da exe VER ERE E NERIS VR EUREN TR PE TR S TUR E 10 3 2 RUNNING THE CLIENT 10 3 2 1 Autodiscovery of el exte in Duke edant 10 3 22 Drawing Autodiscovered Network 12 32 5 Creating the network diagram cccccscccessccssseeesssecescecessecesseceseecseecsseecssaecesaeeesa
5. RE ES 15 FIGURE 8 MIB BROWSER DISPLAYING nne nennen nnne 16 FIGURE 9 AUTHENTICATION BEFORE SNMP 5 rns sn n 17 FIGURE 10 SETTING CHANGING THE TABLE 18 FIGURE 11 SETTING CHANGING ANY LEAF OID 18 EIGURE 12 SNMP TRAPEABEE nenne tme eere NRI Eee 19 FIGURE 13 4 PING OPTION WINDOW tee ER SEE EE ue 20 FIGURE 14 lt PING RESUEIS iube eee tette eret ec Sek Sat test SE eve EB ANE EERE EE 21 5 DVS NMS User Manual Release 1 2 1 OVERVIEW 11 Overview DVS NMS software is a simple and robust network management software for comprehensive management of SNMP based networks This software is based on SNMPv2 protocol Simple Network Management protocol SNMP is a TCP IP based network management protocol to manage devices Each of the SNMP capable devices is called as SNMP agent These agents can be running on any kind of network device like switches routers servers end hosts etc Our software acts as an SNMP manager to control these various agents present in your network Each of these agents uses MIB Management Information Base to store management related information This information varies from configuration to status parameters SNMP protocol provides a framework to GET this information from agents to the manager to SET this informatio
6. achine other than localhost then client when started ask for the IP Address of the machine on which server is running And ask for restart of the client Also configuration of the IP Address of the server can be done through Option in Menu of the Client But it requires restart of the client to communicate with changed server 9 DVS NMS User Manual Release 1 2 3 RUNNING 31 Running the Server To run DVS NMS Server go to Start gt Programs gt DVS NMS Server Click on DVS NMS Server This will open a console window which shows DVS NMS Server is running Note Please start the NMS server before starting the NMS client 3 2 Running the Client Assuming you have already installed JAVA Runtime Environment To run DVS NMS Client go to Start gt Programs gt DVS NMS Client Click on DVS NMS Client This should start your client When client starts it will try to connect to the DVS NMS server Once the connection is successful the user interface will be displayed at the client side otherwise it will display message to start DVS NMS Server The IP Address of the DVS NMS Server by default is localhost User can give the IP Address of the machine in case if server is not running on the localhost in the text box provided by the error message and then have to restart the client Error DVS NMS Server is not running localhost Either run DVS MMS server on the above IP address and cli
7. be to get a particular MIB variable to set a particular MIB variable etc The server then communicates with the corresponding network agent using SNMP protocol collects up the response and sends it to the client The client then displays this information in form of a MIB tree DVS NMS Client is Java based written using JDK1 2 and hence is platform independent NMS Client running user NMS Agent interface Server Figure 1 Overview of DVS NMS System 7 DVS NMS User Manual Release 1 2 2 INSTALLATION AND CONFIGURATION 21 Requirements DVS NMS Server Pentium or higher system with 32 MB RAM or higher Running Windows NT or Windows 95 or Windows 98 or Linux DVS NMS Client As the code is written in Java and can run on any platform supporting Java Also it require JAVA Runtime Environment to work It comes with the Java Development Kit or user can install it separately It is available for free and can be downloaded from http www java sun com products jdk1 2 jre index html 22 Installation Assuming installation of both client and server on a same Windows 98 machine and the CDROM drive is the D drive in the system Place the CD that came with the release into CDROM drive Open a MSDOS prompt by clicking in Start gt Programs gt MSDOS Prompt On the DOS prompt run the following commands to install the DVS NMS Server cd server setup exe Setup will ask the destination direct
8. ck Cancel Or Enter the IP Address ofthe machine on which DVS NMS Server is running click and Start Client again OK Cancel Figure 2 Error Window From Client if NMS Server is not running 3 2 1 Autodiscovery of Network User can autodiscover his her network with this feature of DVS NMS Autodiscovery of network is done in very controlled way User can specify that upto what depth he she wants to discover the network and also from where discovery should start It means user can discover a particular subnet s network elements by giving that subnet s router s address as a seed router and by giving a depth value user can specify upto what depth he she wants to discover the network that means starting from seed address how many subnets should be discovered 10 DVS NMS User Manual Release 1 2 ty Seed Address Window x Enter Seed Router IP address 10 0 2 2 Depth upto which Network to be autadiscovered 1 OK Cancel Figure 3 Supplying Seed address and depth for autodiscovery After autodiscovery of network NMS display the discovered information in very user convenient way Autodiscovered network is displayed in the form of routers hosts segments domain as node of tree and then related information is arranged in the form of subtree Also brief detail can be viewed in bottom panel by single left button click on the nodes like by clicking on Routers will show the no of routers their name
9. e Sequence Sequance 2 Tran RIT 0 TTI 255 Size 84 0 255 Size B4 O 255 Siza B4 Figure 14 Ping Results DVS NMS User Manual Release 1 2
10. eecsseessaesesaesesaeeesaes 13 3 2 4 Saving the network eese esee eene nennen aeres en 14 3 2 5 Loading the network diagram eese eene entente enne entere nennen 14 3 2 6 Doing the Network Survey de tpe ettet deste pets 14 3 2 7 SNMP GET using MIB Browser eese 15 3 2 8 SNMP SET using MIB Object Editor eese eene nennen enne enne neret 17 3 2 9 Tistens to SNMP TERAP einai ceded baddies edes dto e edere dee 19 3 2 10 v desee fete eve de Eis e dte dos dioe ca 20 DVS NMS User Manual Release 1 2 FIGURE 1 OVERVIEW OF DVS NMS 5 5 02 200000 0 00 7 FIGURE 2 ERROR WINDOW FROM CLIENT IF NMS SERVER IS NOT 4 4 88 10 FIGURE 3 SUPPLYING SEED ADDRESS AND DEPTH FOR 11 FIGURE 4 AUTODISCOVERED 11 FIGURE 5 ROUTER AND HOST SELECT 2 se rns sse rn see e ae ese eese een nun 12 FIGURE 6 DRAWING AUTODISCOVERED 0000 13 EIGURE 7 NETWORK SURVEY tp eaten EE
11. f file to be reloaded later To save the current network diagram click on File gt Save configuration tab Provide the filename which will be saved on the NMS server 3 2 5 Loading the network diagram To load the saved network diagram from the server click on File gt Load configuration Enter the name of the network configuration file This will load the network diagram from the server onto the NMS client user interface 3 2 6 Doing the Network Survey The network diagram can be surveyed using the Network Survey feature Using this feature the entire network can be surveyed in order to check whether the network elements i e router hosts switches as well as there interfaces up or down To do a network survey click on Tools gt Network Survey 14 DVS NMS User Manual Release 1 2 The result of network survey is shown by change of color of network elements The red colored elements are down while the blue colored elements are up Et OVS MMS Client Ver 1 2 File Edit Tools Trap Options 78 Wy Network Routers linux2 dvzinfo cam 5 73 Segments e 10020 10030 23 Domains DVSINFO Discovery Data No Trap Waiting Figure 7 Network Survey 3 02 7 SNMP GET using MIB Browser It gives a facility to browses the MIB in a hierarchical way similar to the way in which Windows Explorer displays the directory tree It generates a tree of MIB objects wh
12. he operation 17 DVS NMS User Manual Release 1 2 18 Browser of linux2 dvs e Intefaces um ren 1 1000 255 155 255 0 i e udp 255 255 255 0 2 1 255 0 0 0 1 202 56 223 19 Caan Click hara eris newvalue and press Enter to SET this value e nBFragCrestes 22 pFregFalls 9 aFregoks i pRaasmFails 2 pReasmOKs 22 pReasmReqds e pRessmTimeo pOulNoRoutes poOutDiscards c9 POulRequests ie pinDeivers e pinDistards 22 pinniownPro o9 9 plnAddi amp rrors ie 5 pinRecetves Figure 11 SETting changing any leaf OID value DVS NMS User Manual Release 1 2 3 2 9 Listens to SNMP TRAP NMS also listens to SNMP TRAP from the SNMP AGENTS and notify the user about the trap immediately by displaying Trap Arrived in the bottom panel Then user can check for the trap details by clicking on the Trap View recent traps on the main menu This will display the detailed table of recently received traps giving the type generating agent and time at which it is generated Et OVS MMS Client Ver 1 2 File Tools 3 Wy Network E 73 Routers 839 Hosts 053 1002 5 LASTEST1 e 55 Ej 73 Seqmerts 10020 10030 E 74 Domains OVSINFO Source Age
13. ich can then be browsed by the user It means user can browse the tree by single clicking on a node If the node is a leaf node it shows its current value in a panel besides the tree Similarly if the node represents a table then it shows the whole table in the panel If the node is not a leaf node it will expand the tree to one more branch and user can browse it further in similar way Each SNMP agent has got a community name which is like a password to access the information maintained by the agent By using DVS NMS client the user can get information about all the agents of which the community name is known to the user User can open the MIB browser for each network element by double clicking on the network element Each browser will open in separate window so that user can switch among them very easily 15 DVS NMS User Manual Release 1 2 SS MIB Browser of linux2 10 0 2 2 2 73 interfaces 04 ifTable ifNumber ifMIB intStv revp mon udp tcpConnState tcpConnLoca tepConnLoca ttpConnRem ttpConnRem tcpOutRsts tcpinErrs tcpConnTable tcpRetransSeds tcpOutSegs eee EE E NE E OAM tcpCurrEstab 10 0 2 2 139 10 0 2 3 1646 tcpEstabResets 10 0 2 CON 0 0 2 3 2181 tcpAttemptFails 10 0 2 10 0 2 4 1028 tcpPassiveOpens tcpActiveOpens tcpMaxConn tcpRtoMax EC tcpRtoMin ME IE en Corny L public tcpRtoAlgorithm rele
14. n agents reporting critical faults in form of TRAPS to the manager 12 Features SNMP version 1 and version 2 compliant Very simple upgradation path to all coming SNMP versions Can run on Windows 98 Windows 95 Windows 2000 Linux machines User friendly way to autodiscovery of network Selective way of drawing of autodiscoverd network User friendly way to draw the network diagram topology of network and then manage it It provides a way to save the network diagram in a file which can be used later e The entire network can be surveyed to find which network elements are up and which network elements are down e Supports SNMP SET GET and GET NEXT request in this release Also supports listening of SNMP TRAPS e SNMP GET and GET NEXT is done using MIB Browser feature of the product which displays the MIB in form of a tree e SNMP SET is done using MIB Editor feature of the product SNMP set request is authenticated so that a malicious user getting hold of user interface of the product can t do any damage to the network e Listen for SNMP TRAPS and notify user on reception Also provides tabular detail of recently received traps e The user interface module and the module which actually communicates with the SNMP agent are divided This gives flexibility scalability and lesser load on the system Both the modules can run on the same machine or different machines 6 DVS NMS User Manual Release 1 2 13 Architect
15. ory to install the program and then will install the server program Note By default the server will be installed in C Program Files DVS NMS Server directory On the DOS prompt run the following commands to install the DVS NMS Client cd client setup exe Setup will ask the destination directory to install the program and then will install the client program Note By default the client will be installed in C Program Files DVS NMS Client directory 2 3 Configuration of Server The username and corresponding password needs to be added for all those users network administrators who will be having rights to do SNMP SET which can change the configuration at SNMP agents These usernames and passwords are stored in a text file named auth txt in the server installation directory Usernames and their passwords can be added manually in the file by editing the file using any text editor such as NOTEPAD The example file is enclosed below netadminl qwerty1 netadmin2 qwerty2 8 DVS NMS User Manual Release 1 2 where 1 and netadmin2 are usernames and qwerty and qwerty2 are passwords 2 4 Configuration of Client Client needs to be provided with the IP address of the machine on which DVS NMS server is running If both the server and the client run on same machine no configuration is required because the client has been configured for localhost by default If server is running on the m
16. rt Trap Specific Toe Timemtimi ss 0 0 0 0 pudlit C ald Start 0 19 06 04 0 0 0 0 pudlit Cold Start 19 06 04 10 0 2 2 000110 Entemnse Specific 2 19 06 04 1002 2 public Entemnse Specific 2 19 06 07 10 0 2 2 public Entemnse Spacitc 1 19 06 07 10 0 2 2 public C old Start 0 13 08 07 Trap Anmeg Figure 12 SNMP Trap Table 19 DVS NMS User Manual Release 1 2 3 2 10 Network Tools This feature increase the hold of network administrator on his network This includes the very well known and valuable tools In this release NMS includes ping To ping the desired host click on Tools gt Network Tools gt ping NMS display the result of ping in the bottom panel More Network tools will be added in future releases Ping Host Window X Enter Host to ping f 0 0 2 2 Size Of Packet 34 Number Of Packets to be sent OK Cancel Figure 13 Ping Option Window This will open a window to enter the IP address or name of the host to ping User can also specify the size of ICMP packet ping packet and number of packets to be pinged to the host 20 DVS NMS User Manual Release 1 2 S0VS MMS Client Ver 1 2 CELA eise 713 Auladizcovury a ai Diswautadiscovered Network 10025 LASTEST e 0755 Ej 73 Segments 1002 0 1003 0 E Z3 Domains e OVSINFO Reply Froa hear 10 0 2 2 teply Froa hoat 10 0 2 2 aply From hoart 10 0 2 2 21 Sequenc
17. the network diagram When user starts the client software and a connection is made with the server a drawing canvas will be displayed on which the user can draw various network elements segment routers hosts switches to be managed A network element is a managed entity running SNMP agent These elements can be an IP router a TCP IP based host server Ethernet switches hubs A segment is similar to a LAN segment and it is a logical entity which joins the other elements in the network Click on Edit tab in the main menu and a sub menu as displayed in following figure will be displayed After selecting a specific network element to draw a window is displayed to enter the data specific to that element For example for a host hostname and its IP address need to be entered After entering the required data the software draws that element on canvas User can then move this element anywhere on the canvas User can create various network elements and then join the network elements using segments For instance to join a router interface to segment user will right click first on the interface to be connected to the segment and then on segment software will automatically draw a line between router s interface and the segment Similarly other network elements can be joined to form a logical view of the network 13 DVS NMS User Manual Release 1 2 32 4 Saving the network diagram User can save this network diagram to server in form o
18. ure DVS NMS system is based on a client server architecture So it has got two distinct modules DVS NMS Server and DVS NMS Client Both of these can reside on same machine or can reside on different machines There should be only one server running in the system while there can be multiple client software running on different machine 13 1 DVS NMS Server This piece of software communicates with the different SNMP agents It collects up the information from the SNMP agents and then sends this information to DVS NMS Client based on users query DVS NMS Server is written in ANSI C and it runs on both Linux and Win32 95 98 NT 2000 platforms The definition of MIB is stored on the server in a text format in which new objects can be added easily to make it compatible with the new SNMP versions SNMP get request does not require any authentication but SNMP set request is authenticated using a username and password 1 3 2 DVS NMS Client This module provides a user friendly front end and communicates with the DVS NMS Server using a TCP IP based messaging interface Once the server is installed and running user can use the client to manage the network The user s view to the product is only through the NMS client The client connects to DVS NMS server at TCP port number 5555 on which DVS NMS Server must be already listening Once the TCP connection has been established the client sends the various SNMP requests to server These requests can
19. y user friendly and selective way To draw network on canvas click on tools on the top menu then click on Draw Autodiscovered Network then NMS will provide box with the list of autodiscovered routers After selecting routers to draw and Selection Box X Host Selection Box M DYS1 100 25 LABTEST1 DYSS Next Cancel OK Cancel Figure 5 Router and Host Select Window clicking Next NMS will provide user the box with list of autodiscovered hosts After selecting hosts and clicking NMS will draw the selected routers and hosts joined with proper segments automatically This selective drawing of network is very useful when network is very big and user wants to draw and manage only few critical routers and hosts 12 DVS NMS User Manual Release 1 2 Bet OVS MMS Client Ver 1 2 File Edit Tools Trap Options Help Ej 9 Wy Network 8 Routers 23 Hosts DyS3 Ove 1002 5 LABTEST 55 8 Segments 1002 0 10030 73 Domains OVSINFO Router Name lmus2 dvsinfo com FPP 202 55 223195 INA Interfaces filerface No irterface IP Addrees Address 1 Software Loopback 127001 INA 3 Ethernet C SACO 10 0 22 00 00 21 1 80 8B d Ethernet CIMACO 10 0 32 loc 80 COTAOAZE 5 No Trap Visiting Figure 6 Drawing Autodiscovered Network 32 3 Creating
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