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Home Network Management Dec 12th, 2000

Home Network Management Dec 12th, 2000. Jung, Han Uk, hanuk@kt.co.kr Kim, Jeong Seon, jskimwj@kt.co.kr Korea Telecom Access Network Labs. Agenda. Home Networking Today & Tomorrow Home Networking Technologies Home Network Description Network Management Basics

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Home Network Management Dec 12th, 2000

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  1. Home Network ManagementDec 12th, 2000 Jung, Han Uk, hanuk@kt.co.kr Kim, Jeong Seon, jskimwj@kt.co.kr Korea Telecom Access Network Labs

  2. Agenda • Home Networking Today & Tomorrow • Home Networking Technologies • Home Network Description • Network Management Basics • Management Considerations in Home Network

  3. Home Networking Today

  4. Home Networking Tomorrow

  5. Why Home Networking?(Continued) • Home Networks • 5.1 million with 8.9 million nodes in 2000 • 20.2 million with 48.5 million nodes in 2004 • IEEE 1394 • Proliferation of IP to entertainment devices • Increase node count in network • Smart devices • PDAs • Phones • Set top boxes • In 1999, non-PC CPU devices outsold PCs

  6. Why Home Networking?(Continued) • four most compelling home network market drivers - Simultaneous high-speed Internet access using one ISP - Peripheral sharing - Sharing files and applications - Entertainment

  7. Home Networking Future • Systems are researched, developed, and deployed to manage, monitor, and control the following list of functions. • Data & voice communication needs internal & external to the home • electronic entertainment devices • service appliances that prepare food • service appliances that maintain the home appearance • systems and devices that maintain the in-home environment • devices that keep the home secure from intrunsion or damage from internal and external man-made or natural events.

  8. Agenda • Home Networking Today & Tomorrow • Home Networking Technologies • Home Network Description • Network Management Basics • Management Considerations in Home Network

  9. Home Networking Technologies • Wired Home-Networking Technologies - Twisted Copper-Pair or Coaxial-Based Transport Systems(Ethernet) - Twisted Copper-Pair-Based Systems(PhoneLine) - Two-way Coaxial Cable-Based Transport Systems(Broadband) - Alternating Current Powerline-Based Transport Element • Wireless Home-Networking Technologies - Wireless-Based Transport Element(Irda, Analog Cordless Phone) - Wireless-Based Transport Element(Radio Frequency) IEEE 802.11/HomeRF/Bluetooth • Home-Network Configuration - PC-Based Home Networking System - Non-PC-Based Home Networking System • Standard related to home networking

  10. Twisted Copper-Pair or Coaxial-Based Transport Systems(Ethernet) - based on IEEE 802.3 Standard- bidirectional & high degree of reliability - required expensive CAT 5 Cabling

  11. Twisted Copper-Pair-Based Systems(PhoneLine) - This technology uses the existing phone wiring- Category 3- HomePNA(Home Phone Network Alliance)

  12. Two-way Coaxial Cable-Based Transport Systems(Broadband) - uses coaxial cable that is used by CATV- long distance capability

  13. Alternating Current Powerline-Based Transport Element - AC powerlines are readily available as network transport elements throughout a home- no standards exist to ensure interoperability between manufacturers

  14. Wireless-Based Transport Element(Irda, Analog Cordless Phone) - used for line-of-sight, infrared, unidirectional, handheld controller application- Typical uses today are VCRs, TVs, some security and alarm applications.

  15. PC–Based Wireless Home Networking System - One PC acts as a master to the network and provides network addressing & routing between the home and the Internet

  16. Non-PC–Based Wireless Home Networking System 4 functional areas- home local-area network- Internet gateway- wireless- voice networking- traditional wireline POTS networking

  17. Standards related to home networking • IEEE 802.11 wireless LAN • a 2.4 GHz band using a relaxed IEEE 802.11 standard & DECT Standard • Bluetooth • SWAP 1.0 • X10 • IEEE 1394 • Home Phoneline Networking Association(HomePNA)

  18. Agenda • Home Networking Today & Tomorrow • Home Networking Technologies • Home Network Description • Network Management Basics • Management Considerations in Home Network

  19. Home Networking Definition • The collection of elements that process, manage, transport, and store information, enabling the connection and integration of multiple computing, control, monitoring, and communication devices in the home

  20. Home Network Devices End-devices LAN 1 WAN Residential Gateway End-devices Network- Device LAN 2 End-devices End-Device = VCR, PC, Lamp Network-Device = Bridge, Router, Application Gateway Residential Gateway =Cable modem, PC

  21. Gateway requiements • Gateway design : external Requirements - Common standards - Low cost - Network Security - Remote Maintenance - Charging mechanism - Application support • Gateway design : In-House Requirements - Low cost - Ease of use - popular application support - security - Low maintenance - Easy installation - Aesthetically pleasing

  22. Home Network Connectivity Corporate Network Internet Home Network Another Home Network Home network connects to corporate network, Internet, and another home network.

  23. Services Client Corporate Network Home Network Internet Another Home Network Server Support all combinations of home network client or server connectivity to clients and servers on the in the home, corporate network, the Internet and another home network.

  24. Scenarios • Intra-Home Networking • Internet Access Sharing • Telecommuting • Inter-Home Networking • Service From the home • Security

  25. Intra-Home Networking • Scenario • Gaming, file sharing, printer sharing in the home • Requirements • No human interaction to configure network interface • Auto naming of devices that works with user configured names • Auto resolution of name to IP address • Auto configuration of services and applications • Auto discovery of services and applications • Easy configuration of access to users, devices, services, protocols, apps • Internetworking to connect devices on different links

  26. Internet Access Sharing • Scenarios • Multiple users on multiple devices simultaneously sharing Internet access with a limited number of globally unique IP address • Single device connects to Internet, all home devices perform batch-like functions • Requirements • Allow multiple hosts to simultaneously access the Internet • Forward requests to outside the home when the request cannot be satisfied within the home-network

  27. Telecommuting • Scenario • Single user telecommutes from home to corporate LAN • Bring end-device to and from work and home • Requirements • End-device must access corporate LAN • End-devices must easily adapt between operating in the corporate LAN and operating in the home network

  28. Inter-Home Networking • Scenario • Single user games, shares, and communicates with end-devices in another home • Requirements • End-device must access another home network

  29. Service From Home • Scenario • In-home servers accessible from Internet • Service is discoverable from the Internet • Requirements • Allow access from the Internet to home server

  30. Security • Scenario • Security is key • No security scenarios; however, security applies to most scenarios • Requirements • Some type of firewall capability that controls access to an d from the home network • Authentication and possible data encryption to communicate outside the home. • Controlled access to user profiles, devices, services, protocols, and applications

  31. In-Home Internetworking Den PC/ Internetworking Device HomePNA Bedroom PC Internetworking Device Powerline Sprinkler System Controller VCR 1394 Bluetooth STB Wireless Handheld Device Internetworking Device • If address space, max packet size, and bandwidth on different link • layers are the same, do bridging over single IP subnet, otherwise consider • routing between multiple IP subnets • Future Policy work will be easier to apply to routers than bridges

  32. Requirements • Support multiple IP subnets

  33. Agenda • Home Networking Today & Tomorrow • Home Networking Technologies(Transport Aspect) • Home Network Description • Network Management Basics • Management Considerations in Home Network

  34. What is Network Management? • Means different things to different people - a solitary network consultant monitoring network activity with an outdated protocol analyzer - distributed database, auto-polling of network devices, and high-end workstations generating real-time graphical views of network topology changes and traffic • a service that employs a variety of tools, applications, and devices to assist human network managers in monitoring and maintaining networks

  35. Network Management Architecture

  36. ISO Network Management Model • The primary means for understanding the major functions of network management systems. • This model consists of five conceptual areas - Performance management - Configuration management - Accounting management - Fault Management - Security management

  37. Performance Management • To measure and make available various aspects of network performance so that interworking performance can be maintained at an acceprable level - network throughput, user response times, line utilization • Performance management involves three main steps. - performance data is gathered on variables of interest to network administrators. - the data is analyzed to determine normal(baseline) levels - appropriate performance thresholds are determined for each variable so that exceeding these thresholds indicates a network problem worthy of attention. • Management entities continually monitor performance var. When a performance threshold is exceeded, an alert is generated and send to the NMS.

  38. Performance Management(continued) • To measure and make available various aspects of network performance so that interworking performance can be maintained at an acceprable level - network throughput, user response times, line utilization • Performance management involves three main steps. - performance data is gathered on variables of interest to network administrators. - the data is analyzed to determine normal(baseline) levels - appropriate performance thresholds are determined for each variable so that exceeding these thresholds indicates a network problem worthy of attention. • Management entities continually monitor performance var. When a performance threshold is exceeded, an alert is generated and send to the NMS.

  39. Configuration Management • To monitor network and system configuration information so that the effects on network operation of various versions of H/W and S/W elements can be traced and managed. • Each network device has a variety of version information. - Operaing system, Version 3.2 - Ethernet interface, Version 5.4 - TCP/IP software, Version 2.0 - NFS software, Version 5.1 - SNMP software, Version 3.1 • Configuration management subsystems store this information in a database which can be searched for clues that may help solve the problem

  40. Accounting Management • To measure network-utilization parameters so that individual or group uses on the network can be regulated appropriately to minimize network problems and maximize the fairness of network access across all users • to yield Billing information • to assess continued fair and optimal resource utilization.

  41. Fault Management • To detect, log, notify users of, and (to the extent possible) automatically fix network problems to keep the network running effectively. - First to determine symptoms and isolate the problem - Then the problem is fixed, and the solution is tested on all important subsystems. - Finally, detection and resolution of problem is recorded. • Because faults can cause downtime or unacceptable network degradation, fault management is perhaps the most widely implemented of the ISO network management elements.

  42. Security Management • To control access to network resource according to local guidelines so that the network cannot be sabotaged and sensitive information cannot be accessed by those without appropriate authorization. - to monitor users logging on to a network resource, refusing access to those who enter inappropriate codes • authorized and unauthorized - external access - internal users

  43. Market Drivers • Yankee Group estimates Over 30 percent of PC-owning U.S. household are interested in the concept of home networking. - The Changing Face of the Workplace - PC-Based Households - Managing Smart Devices • Internet Access, Resource Sharing and Multiplayer Gaming Boost Home Network Interest • four most compelling home network market drivers - Simultaneous high-speed Internet access using one ISP - Peripheral sharing - Sharing files and applications - Entertainment

  44. Agenda • Home Networking Today & Tomorrow • Home Networking Technologies(Transport Aspect) • Home Network Description • Network Management Basics • Management Considerations in Home Network

  45. Home Networking Goals • Simple to setup • Plug-and-play • Quick • Set top boxes • Maintenance-free • Sophisticated functionality in a simple system • IT SHOULD JUST WORK!

  46. Broad spectrum of application scenarios?

  47. Management Considerations in Home Network • Define the Managed Objects in each Application Scenario - Interoperability Problem - Network Management Protocol • What kind of management subsystem is required in Home Network? - Performanace/Configuration/Accounting/Fault/Security • Which element will become management entity in Home Network? - Home Gateway • The role of Telco in home network management?

  48. Management Considerations in Home Network(Continued) • What about IPv4-capable devices? - Get single IPv4 address from provider - May need to configure all devices(Private addr., Default Gateway) - Seup and configure NAT/router - Not easy to setup, not quick, not simple • IPv6 Home Networking - Plug-and-play - No host configuration - No NATs or private addressing - No network maintenance - Regain end-to-end transparency!

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