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By Dedi Rahmawan Putra (95598052) Advisor: Dr. Kai-Wei Ke July, 8 20081 Network Management and Traffic Analysis for Wireless MAN.

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Presentation on theme: "By Dedi Rahmawan Putra (95598052) Advisor: Dr. Kai-Wei Ke July, 8 20081 Network Management and Traffic Analysis for Wireless MAN."— Presentation transcript:

1 by Dedi Rahmawan Putra (95598052) Advisor: Dr. Kai-Wei Ke July, 8 20081 Network Management and Traffic Analysis for Wireless MAN

2 Outline Motivations and Objectives Simple Network Management Protocol The Design of Network Management Station The Implementation of Network Management Station WiMAX Network Deployment Network Management Deployment Traffic Analysis Remaining Tasks, Conclusions, and Reference 2 Network Management and Traffic Analysis for Wireless MANJuly, 8 2008

3 Motivation The complexity of Wireless MAN system became higher The need to maintain the functionality and the existence of each and between base station and subscriber stations. Reducing the manpower for monitoring purpose, simple maintenance, fault management, and extending the flexibility of management. To accurately model the traffic generated by each network elements in order to evaluate the performance of a system. In many real world cases, the traffic pattern is self-similar rather than Poisson. 3 Network Management and Traffic Analysis for Wireless MANJuly, 8 2008

4 Objectives To develop a Network Management Station (NMS) tool by using SNMP protocol. To integrate the developed Network Management Station (NMS) into WiMAX system in order to confidently characterize the network traffic behavior. To assess the self-similarity existence and its impact in WiMAX network traffic, comparing the past works which have proven that self-similarity exists in Ethernet traffic and Wireless LAN traffic. 4 Network Management and Traffic Analysis for Wireless MANJuly, 8 2008

5 5 Network Management and Traffic Analysis for Wireless MAN Standard Principle Operation Object terminologies Retrieving Scalar Value Retrieving Table Value Standard Naming Tree July, 8 2008

6 Standard SMI (Structure of Management Information) Define how management information may look like SMIv1: RFC 1155 SMIv2: RFC2578 (currently used) MIBs (Management Information Bases) Tell what management information exists MIB-I: RFC1156 MIB-II: RFC1213 SNMP (Simple Network Management Protocol) Define how information is exchanged SNMPv1: RFC1157 SNMPv2: RFC1901, 1905, 1906 SNMPv3: RFC2571-2575 July, 8 2008 Network Management and Traffic Analysis for Wireless MAN6

7 Principle Operation July, 8 2008 Network Management and Traffic Analysis for Wireless MAN7 NMS Agent MIB poll TRAPS GET/SET Transport SNMP v1 : unreliable v2/v3: reliable alternatives variable table MIB Agent

8 Object Terminologies Object: the definition of something Instance: something that has value Object ID: the sequence of integers on the path leading from the root of the tree to a named object Scalar: an object with one instance Table: an object with multiple instances (combination of scalars) July, 8 2008 Network Management and Traffic Analysis for Wireless MAN8

9 Retrieving Scalar Value July, 8 2008 Network Management and Traffic Analysis for Wireless MAN9 1.1.0 1.2.1.0 1.2.2.0 Object OID: 1.1 Instance OID: 1.1.0 Value GET 1.1.0 = 140.124.181.210

10 Retrieving Table Entries Value July, 8 2008 Network Management and Traffic Analysis for Wireless MAN10 X.C.I = OidOfTable.ColumnNumber.IndexValue new-MIB.routeTable.next.8 = 3 destination 1.3.2.8 = 3

11 Standard Naming Tree July, 8 2008 Network Management and Traffic Analysis for Wireless MAN11 Ensuring that each variable gets a unique name for internet people for company or university

12 12 Network Management and Traffic Analysis for Wireless MAN NMS Overview System Context Diagram Feature Refinement July, 8 2008

13 NMS Overview A comprehensive web-based system utilizing SNMP protocol dedicated to network management system. Planned to be integrated with the deployment of fixed WiMAX system Provides easy management tools to manage several agents within the network area of interest. Deliver user friendly menus to access the functional pages Provide object registration, agent registration, and their interaction. It polls the agents periodically to accomplish the dynamic monitoring. July, 8 200813 Network Management and Traffic Analysis for Wireless MAN

14 System Context Diagram July, 8 200814 Network Management and Traffic Analysis for Wireless MAN

15 Feature Refinement July, 8 200815 Network Management and Traffic Analysis for Wireless MAN Features Satisfied Requirements OperationAdministrationMaintenanceProvisioningFunctions Object Registrationxx Object Summaryx Agent Registrationxx Agent Summaryx Agent object Managementxxx Agent Status Controlxxx Static Monitoringxxx Dynamic Monitoringxx Grouped Monitoringxx Manager System Controlxx Agent Management Structurexx Admin Login Controlxxx Server Timexx Ping Toolxxx Get Toolxxx Set Toolxxxx Logs of Activitiesxx

16 Object Registration UI July, 8 200816 Network Management and Traffic Analysis for Wireless MAN displaying hidden field

17 Object Registration Fields July, 8 200817 Network Management and Traffic Analysis for Wireless MAN Object ID Object Name Syntax: the object data type Max-Access: the maximum possible access Description Make Default for New agent: special field intended to distinguish which objects should be included in a newly-registered agent by default.

18 Syntax Enumeration July, 8 200818 Network Management and Traffic Analysis for Wireless MAN meaningless status value for human readable more understandable meaning

19 Once: retrieved once when the monitoring starts. Eg: SystemDescription, systemName. Continuously-Updated-Value: retrieved and updated regularly. Eg: systemUpTime. Line-Chart: retrieved regularly, the previously retrieval data will be kept. Bar-Chart: basically similar with Line-Chart one, but using bar-chart or histogram to illustrate the monitored object. Object Retrieval Method July, 8 200819 Network Management and Traffic Analysis for Wireless MAN newly appeared field

20 Agent Registration UI July, 8 200820 Network Management and Traffic Analysis for Wireless MAN hidden by default show hidden field

21 Agent Registration Fields July, 8 200821 Network Management and Traffic Analysis for Wireless MAN IP Address Agent name Device type: the level position in the WiMAX network deployment hierarchy: WiMAX-BS, WiMAX-SS, AP, CLIENT Upper level gateway: which upper gateway the device belongs to. SNMP version : which compatible SNMP standard the device agent is designed for: v1, v2c, v3 Read Community: community string for read access. Write Community: community string for write access. SNMP Port

22 Agent Object Management July, 8 200822 Network Management and Traffic Analysis for Wireless MAN Need confirmation: monitoring in progress?  restart Object naming convention: name + index for Table instances

23 Agent Status Control July, 8 200823 Network Management and Traffic Analysis for Wireless MAN OK Need Attention Not Performed

24 Static Monitoring July, 8 200824 Network Management and Traffic Analysis for Wireless MAN Used for: Once and Continuously-Updated-Value

25 Dynamic Monitoring July, 8 200825 Network Management and Traffic Analysis for Wireless MAN Line-Chart Object Name Bar-Chart (Histogram)

26 Grouped Monitoring Setting July, 8 200826 Network Management and Traffic Analysis for Wireless MAN

27 Grouped Monitoring July, 8 200827 Network Management and Traffic Analysis for Wireless MAN

28 Agent Management Structure July, 8 200828 Network Management and Traffic Analysis for Wireless MAN

29 Simple Management Tools July, 8 200829 Network Management and Traffic Analysis for Wireless MAN

30 30 Network Management and Traffic Analysis for Wireless MAN Implementation Class Diagram Implementation Architecture GUI Layout Important Functional implementation July, 8 2008

31 Implementation Class Diagram July, 8 200831 Network Management and Traffic Analysis for Wireless MAN

32 Implementation Architecture July, 8 200832 Network Management and Traffic Analysis for Wireless MAN

33 GUI Layout July, 8 200833 Network Management and Traffic Analysis for Wireless MAN Containers and contents are implemented using JSP

34 July, 8 200834 Network Management and Traffic Analysis for Wireless MAN

35 35 Network Management and Traffic Analysis for Wireless MAN Ping function Get function Set function Timer Interval Function Chart Generator function July, 8 2008

36 Ping July, 8 200836 Network Management and Traffic Analysis for Wireless MAN aimed to detect the device status utilizes isReachable() function call provided by Java. Implemented using Stateless Session Bean within EJB Container.

37 Get July, 8 200837 Network Management and Traffic Analysis for Wireless MAN Used for monitoring feature and simple Get feature. Implemented using Stateless Session Bean within EJB container. To perform the value retrieval from a specific object ID in the MIB agent. Utilizing Snmp4j library to create SNMP PDU and execute Get command.

38 Set July, 8 200838 Network Management and Traffic Analysis for Wireless MAN Implemented using Stateless Session Bean within EJB container. Used for simple Set tool feature To create SetRequest-PDU and execute Set command, we also utilize Snmp4j library.

39 Timer Interval July, 8 200839 Network Management and Traffic Analysis for Wireless MAN To schedule a sequence of actions by giving a certain delay in between. Implemented using Stateless Session Bean within EJB container. Constructed by 3 sub functions: initiating timer, cancelling timer, timeout actions. Used for dynamic monitoring and Auto-ping feature.

40 Chart Generator July, 8 200840 Network Management and Traffic Analysis for Wireless MAN Generates the chart presentations on monitoring procedure. Utilizing JFreeChart library. Two kinds of charting presentation available: bar or histogram time series chart, and line time series chart. Implemented in: Servlet within web container: for Static PNG image Applet within Applet Class Library: for real monitoring The chart is a time series domain chart drawn against the retrieval value

41 41 Network Management and Traffic Analysis for Wireless MAN WiMAX Network Deployment Management Scenario Network Element Registration MIB Extraction Traffic Generation Plan NMS Demonstration July, 8 2008

42 WiMAX Network Deployment July, 8 200842 Network Management and Traffic Analysis for Wireless MAN

43 Network Element Registration July, 8 200843 Network Management and Traffic Analysis for Wireless MAN Device TypeDevice NameIP AddressUpper Level Gateway WiMAX-BSProxim-BS140.124.183.210None WiMAX-SSProxim-SS1140.124.183.212140.124.183.210 WiMAX-SSProxim-SS2140.124.183.214140.124.183.210 APLinksys-AP1140.124.183.216140.124.183.212 APLinksys-AP2140.124.183.217140.124.183.214 ClientUser Client140.124.144.216None ClientLab-NB1-1140.124.183.xxx140.124.183.216 ClientLab-NB1-2140.124.183.xxx140.124.183.216 ClientLab-NB2-1140.124.183.xxx140.124.183.217 ClientLab-NB2-2140.124.183.xxx140.124.183.217

44 MIB-II July, 8 2008 Network Management and Traffic Analysis for Wireless MAN44 OID: 1.3.6.1.2.1 wmanIfMib is defined under this branch

45 MIB-II Groups in a Protocol Stack July, 8 2008 Network Management and Traffic Analysis for Wireless MAN45 SYSTEM TRANSMISSION INTERFACES

46 IEEE Std 802.16f-2005 MIB July, 8 200846 Network Management and Traffic Analysis for Wireless MAN

47 MIB Extraction July, 8 200847 Network Management and Traffic Analysis for Wireless MAN Object IDObject NameSyntaxMax-AccessApplicability 1.3.6.1.2.1.2.2.1.2.x1ifDescr OCTET-STRINGREAD-ONLYAll 1.3.6.1.2.1.2.2.1.5.x1ifSpeed Gauge32READ-ONLYAll 1.3.6.1.2.1.2.2.1.10.x1ifInOctetsCounter32READ-ONLY All 1.3.6.1.2.1.2.2.1.11.x1ifInUcastPktsCounter32READ-ONLY All 1.3.6.1.2.1.2.2.1.12.x1ifInNUcastPktsCounter32READ-ONLY All 1.3.6.1.2.1.2.2.1.14.x1ifInErrorsCounter32READ-ONLY All 1.3.6.1.2.1.2.2.1.16.x1ifOutOctetsCounter32READ-ONLY All 1.3.6.1.2.1.2.2.1.17.x1ifOutUcastPktsCounter32READ-ONLY All 1.3.6.1.2.1.2.2.1.18.x1ifOutNUcastOctetsCounter32READ-ONLY All 1.3.6.1.2.1.4.9ipInDeliversCounter32READ-ONLY All 1.3.6.1.2.1.4.10ipOutRequestsCounter32READ-ONLY All 1.3.6.1.2.1.6.10tcpInSegsCounter32READ-ONLY All 1.3.6.1.2.1.6.11tcpOutSegsCounter32READ-ONLY All 1.3.6.1.2.1.7.1udpInDatagramsCounter32READ-ONLY All 1.3.6.1.2.1.7.4udpOutDatagramsCounter32READ-ONLY All

48 Management Scenario July, 8 200848 Network Management and Traffic Analysis for Wireless MAN

49 Traffic Generation July, 8 200849 Network Management and Traffic Analysis for Wireless MAN QoS Service Class: UGS, rtPS, nrtPS, Best Effort Modulation: BPSK, QPSK, 16QAM, 64QAM Destination: Unicast, Broadcast/Multicast Traffic Intensity: light load, heavy load Data flow: Uplink (UL), Downlink (DL) Data Traffic: UGS: VoIP, T1/E1 orATM CBR rtPS: MPEG video, VoIP, video conference nrtPS: video and audio streaming BE: internet application(web browsing), email, FTP

50 50 Network Management and Traffic Analysis for Wireless MANJuly, 8 2008

51 Remaining Tasks July, 8 200851 Network Management and Traffic Analysis for Wireless MAN Carry out the traffic generation plan Traffic analysis for self-similar existence in our test-bed network Improving the Network Management Station (NMS)

52 Conclusion Network Management Station (NMS) has been developed successfully. However some features has not yet been implemented. NMS provides configurable system to extend the management flexibility. NMS can be deployed appropriately into our test-bed network. Traffic generation plan has been defined and ready to carry on. Traffic analysis will come out later after the data traffic collection. July, 8 2008 Network Management and Traffic Analysis for Wireless MAN52

53 References Hwang, You-Sun. Kim, Eung-Bae. “An Architecture of SNMP-based Network Management of the Broadband Wireless Access System”. IEEE, 2003 Kantorovitch, J. Mahonen, P. “Case Studies and Experiments of SNMP in wireless Networks”. IEEE, 2002 Ke, Kai-Wei. Wu, Ho-Ting. Tsai, Chen-Nien. Lin, Wen-Chi. “WLAN Self-Similar Traffic and Impact to CSMA/CA Performance”. National Science Council, 200X Leland, Will E. Taqqu, Murad S. Willinger, Walter. Wilson, Daniel V. “On the Self- Similar Nature of Ethernet Traffic”. Proceeding of ACM SIGCOMM ’94, 1993 Aiko Pras, (2000). Internet Management Protocol, http://www.simpleweb.org. Centre for Telematics and Information Technology, University of Twente, Netherland.http://www.simpleweb.org Gilbert Held, (2000). Managing TCP/IP Networks: Technique, Tools and Security Consideration. John Wiley&Sons Ltd. http://java.sun.com/javaee/5/docs/tutorial/doc/ July, 8 200853 Network Management and Traffic Analysis for Wireless MAN


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