Home Network Management Dec 12th, 2000

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Home Network ManagementDec 12th, 2000

• Jung, Han Uk, hanuk_at_kt.co.kr
• Kim, Jeong Seon, jskimwj_at_kt.co.kr
• Korea Telecom Access Network Labs

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Agenda

• Home Networking Today Tomorrow
• Home Networking Technologies
• Home Network Description
• Network Management Basics
• Management Considerations in Home Network

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Home Networking Today
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Home Networking Tomorrow
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Why Home Networking?

• Cable Modems
• U.S. - 2.9M in 2000 ? 12.4M in 2003
• Worldwide - 5M in 2000 à 24M in 2003
• Digital Subscriber Lines
• U.S. - 1.75M in 2000 ? 13.9M in 2003
• Worldwide - 4.4M in 2000 à 36.1M in 2003
• PC-Based Households
• 54 percent of U.S. household will have PCs in
  2001
• with the portion of multi-PC households growing
  to 24.5 percent in 2001

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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

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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

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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.

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Agenda

• Home Networking Today Tomorrow
• Home Networking Technologies
• Home Network Description
• Network Management Basics
• Management Considerations in Home Network

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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

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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
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Twisted Copper-Pair-Based Systems(PhoneLine)
- This technology uses the existing phone
wiring- Category 3- HomePNA(Home Phone Network
Alliance)
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Two-way Coaxial Cable-Based Transport
Systems(Broadband)
- uses coaxial cable that is used by CATV- long
distance capability
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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
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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.
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PCBased Wireless Home Networking System
- One PC acts as a master to the network and
provides network addressing routing between the
home and the Internet
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Non-PCBased Wireless Home Networking System
4 functional areas- home local-area network-
Internet gateway- wireless- voice networking-
traditional wireline POTS networking
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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)

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Agenda

• Home Networking Today Tomorrow
• Home Networking Technologies
• Home Network Description
• Network Management Basics
• Management Considerations in Home Network

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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

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

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

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

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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

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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

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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

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Inter-Home Networking

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

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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

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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

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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

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Requirements

• Support multiple IP subnets

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Agenda

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

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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

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Network Management Architecture
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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

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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.

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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.

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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

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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.

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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.

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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

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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

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Agenda

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

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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!

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Broad spectrum of application scenarios?
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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/Sec
  urity
• Which element will become management entity in
  Home Network?
• - Home Gateway
• The role of Telco in home network management?

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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!