Transcript IP over IEEE 1394.1995 Memphis IETF BOF April 7th, 1997

Home Network Management
Dec 12th, 2000
Jung, Han Uk, [email protected]
Kim, Jeong Seon, [email protected]
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?(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
In
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top boxes
1999, non-PC CPU devices outsold PCs
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
 service
appliances that prepare food
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
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Considerations in Home Network
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
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Standard
related to home networking
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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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
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Non-PC–Based Wireless Home Networking
System
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4 functional areas
- home local-area network
- Internet gateway
- wireless
- voice networking
- traditional wireline POTS networking
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
Network Description
Management Basics
Management
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Considerations in Home Network
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
End-devices
LAN 2
Residential
Gateway
WAN
NetworkDevice
End-devices
End-Device
= VCR, PC, Lamp
Network-Device
= Bridge, Router, Application Gate
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
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design : In-House Requirements
- Low cost
- Ease of use
- popular application support
- security
- Low maintenance
- Easy installation
- Aesthetically pleasing
Home Network Connectivity
Corporate
Network
Home Network
Internet
Another
Home Network
Home network connects to corporate network, Internet,
and another home network.
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Services
Client
Corporate
Network
Home Network
Server
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Internet
Another
Home Network
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
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 batchlike 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
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must access another home network
Service From Home
Scenario
 In-home
servers accessible from Internet
 Service is discoverable from the Internet
Requirements
 Allow
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access from the Internet to home server
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
Bedroom PC
HomePNA
Den PC/
Internetworking
Device
Internetworking
Device
Powerline
Sprinkler System
Controller
VCR
1394
Bluetooth
STB
Internetworking
Device

Wireless
Handheld
Device
If address space, max packet size, and bandwidth on different link
layers are the same, do bridging over single IP subnet, otherwise consider
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routing between multiple IP subnets
Future Policy work will be easier to apply to routers than bridges
Requirements
Support
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multiple IP subnets
Agenda
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Home
Networking Today & Tomorrow
Home
Networking Technologies(Transport Aspect)
Home
Network Description
Network
Management Basics
Management
Considerations in Home Network
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 realtime 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.
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- 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.
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.
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- 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.
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
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- 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
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
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- Sharing files and applications
- Entertainment
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/Securi
ty
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!
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