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Network Management and Traffic Analysis for Wireless MAN

Network Management and Traffic Analysis for Wireless MAN. by Dedi Rahmawan Putra (95598052) Advisor: Dr. Kai-Wei Ke. Outline. Motivations and Objectives Simple Network Management Protocol The Design of Network Management Station The Implementation of Network Management Station

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Network Management and Traffic Analysis for Wireless MAN

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

  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. Network Management and Traffic Analysis for Wireless MAN

  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. Network Management and Traffic Analysis for Wireless MAN

  5. SNMPSimple Network Management Protocol Standard Principle Operation Object terminologies Retrieving Scalar Value Retrieving Table Value Standard Naming Tree Network Management and Traffic Analysis for Wireless MAN

  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 Network Management and Traffic Analysis for Wireless MAN

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

  8. Object Terminologies • Object: the definition of something • Instance: something that has value • ObjectID: 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) Network Management and Traffic Analysis for Wireless MAN

  9. Retrieving Scalar Value • GET 1.1.0 = 140.124.181.210 Object OID: 1.1 Instance OID: 1.1.0 1.1.0 Value 1.2.2.0 1.2.1.0 Network Management and Traffic Analysis for Wireless MAN

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

  11. Standard Naming Tree • Ensuring that • each variable gets • a unique name for internet people for company or university Network Management and Traffic Analysis for Wireless MAN

  12. The Design of Network Management Station (NMS) NMS Overview System Context Diagram Feature Refinement Network Management and Traffic Analysis for Wireless MAN

  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 toolsto manage several agents within the network area of interest. • Deliver user friendlymenus to access the functional pages • Provide object registration, agent registration, and their interaction. • It polls the agents periodically to accomplish the dynamic monitoring. Network Management and Traffic Analysis for Wireless MAN

  14. System Context Diagram Network Management and Traffic Analysis for Wireless MAN

  15. Feature Refinement Network Management and Traffic Analysis for Wireless MAN

  16. Object Registration UI displaying hidden field Network Management and Traffic Analysis for Wireless MAN

  17. Object Registration Fields • 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. Network Management and Traffic Analysis for Wireless MAN

  18. Syntax Enumeration meaningless status value for human readable more understandable meaning Network Management and Traffic Analysis for Wireless MAN

  19. Object Retrieval Method • 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. newly appeared field Network Management and Traffic Analysis for Wireless MAN

  20. Agent Registration UI hidden by default show hidden field Network Management and Traffic Analysis for Wireless MAN

  21. Agent Registration Fields • 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 Network Management and Traffic Analysis for Wireless MAN

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

  23. Agent Status Control • OK • Need Attention • Not Performed Network Management and Traffic Analysis for Wireless MAN

  24. Static Monitoring • Used for: Once and Continuously-Updated-Value Network Management and Traffic Analysis for Wireless MAN

  25. Dynamic Monitoring • Bar-Chart • (Histogram) Object Name • Line-Chart Network Management and Traffic Analysis for Wireless MAN

  26. Grouped Monitoring Setting Network Management and Traffic Analysis for Wireless MAN

  27. Grouped Monitoring Network Management and Traffic Analysis for Wireless MAN

  28. Agent Management Structure Network Management and Traffic Analysis for Wireless MAN

  29. Simple Management Tools Network Management and Traffic Analysis for Wireless MAN

  30. The Implementation of Network Management Station Implementation Class Diagram Implementation Architecture GUI Layout Important Functional implementation Network Management and Traffic Analysis for Wireless MAN

  31. Implementation Class Diagram Network Management and Traffic Analysis for Wireless MAN

  32. Implementation Architecture Network Management and Traffic Analysis for Wireless MAN

  33. GUI Layout • Containers and contents are implemented using JSP Network Management and Traffic Analysis for Wireless MAN

  34. Network Management and Traffic Analysis for Wireless MAN

  35. Functional Implementation Ping function Get function Set function Timer Interval Function Chart Generator function Network Management and Traffic Analysis for Wireless MAN

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

  37. Get • Used for monitoring feature and simple Getfeature. • 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. Network Management and Traffic Analysis for Wireless MAN

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

  39. Timer Interval • 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. Network Management and Traffic Analysis for Wireless MAN

  40. Chart Generator • Generates the chart presentations on monitoring procedure. • Utilizing JFreeChartlibrary. • Two kinds of charting presentation available: bar or histogram time series chart, and line time series chart. • Implemented in: • Servletwithin 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 Network Management and Traffic Analysis for Wireless MAN

  41. WiMAX System Deployment and Management WiMAX Network Deployment Management Scenario Network Element Registration MIB Extraction Traffic Generation Plan NMS Demonstration Network Management and Traffic Analysis for Wireless MAN

  42. WiMAX Network Deployment Network Management and Traffic Analysis for Wireless MAN

  43. Network Element Registration Network Management and Traffic Analysis for Wireless MAN

  44. MIB-II OID: 1.3.6.1.2.1 wmanIfMib is defined under this branch Network Management and Traffic Analysis for Wireless MAN

  45. MIB-II Groups in a Protocol Stack SYSTEM INTERFACES TRANSMISSION Network Management and Traffic Analysis for Wireless MAN

  46. IEEE Std 802.16f-2005 MIB Network Management and Traffic Analysis for Wireless MAN

  47. MIB Extraction Network Management and Traffic Analysis for Wireless MAN

  48. Management Scenario Network Management and Traffic Analysis for Wireless MAN

  49. Traffic Generation • 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 Network Management and Traffic Analysis for Wireless MAN

  50. NMS Demonstration Network Management and Traffic Analysis for Wireless MAN

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