Transcript ATM standard

ATM STANDARDS
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GROUP 17
DIAN NURFITRI M.NASIR AHMAD
NURALIZA CHE HASSAN
NURHUZAIMA MAHZAN
NURZALINA MOHD ZAWAWI
MUZAMIEL HADY A.MUNIR
WET020028
WET020127
WET020130
WET020139
WET030160
Introduction
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Standard - a set of rules or procedures that are
either widely used or officially
specified.
3 main standard bodies :
International Telecommunications UnionTelecommunications (formerly the CCITT)
American National Standards Institute
European Telecommunications Standards
Institute
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4 industry forums currently participating :
The ATM Forum
The Frame Relay Forum
The Internet Engineering Task Force (IETF)
The Switched Multimegabit Data Service Interest
Group (SIG)
International Telecommunication
Union (ITU)
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An international organization established to
standardize and regulate international radio and
telecommunication.
Responsible for studying technical, operating, and
tariff questions and issuing recommendations on
them, with the goal of standardizing
telecommunications worldwide.
Combines the standards-setting activities of the
predecessor organizations formerly called the
International Telegraph and Telephone Consultative
Committee (CCITT) and the International Radio
Consultative Committee (CCIR).
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Examples of ITU-T B-ISDN Standards:
1.113 Vocabulary for B-ISDN
1.121 Broadband Aspects of ISDN
1.150 B-ISDN Asynchronous Transfer Mode
Functional Characteristics
1.211 General Service Aspects of B-ISDN
1.311 B-ISDN General Network Aspects
1.321 B-ISDN Protocol Reference Model and Its
Application
American National Standards
Institute (ANSI)
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The premier formal B-ISDN/ATM standards
organization in the United States.
Adopts and adds detail to the ITU-T standards and
deals with issues concerning the unique North
American transmission requirements.
Structured into several committees, which cover a
broad spectrum of areas:
TlEl-covering the physical interface aspects of ATM
TIMI-covering the maintenance aspects of ATM
TlAl-covering performance aspects
T1S1.5-covering the network, service, signaling, ATM
layer, interfaces, and AAL aspects of ATM.
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Examples of ANSI Standards:
T1.624-1993, BISDN UNI: Rates and Formats
Specification
T1.627-1993, BISDN ATM Functionality and
Specification
T1.629-1993, BISDN ATM Adaptation Layer 3/4
Common Part Functionality and Specification
T1.633, Frame Relay Bearer Service Interworking
European Telecommunications
Standards Institute (ETSI)
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The ETSI deals with issues concerning the European
communications.
Generate, on the basis of global standards, more
detailed specifications adapted to the unique
historical, technical, and regulatory situation of each
region.
ATM Forum
The ATM Forum was formed in October, 1991 by four
companies: Northern Telecom, Sprint, SUN Microsystems,
and Digital Equipment Corporation (DEC).
In January 1992, the membership was opened to the
industry.
There are 3 categories of membership:
Principal - Participate in technical and marketing
committee meetings.
Auditing - Receive copies of the technical and marketing
committee documents.
User - Participate in End User Roundtable (ENR)
meetings.
There are three types of committees in the ATM Forum:
Technical
Produces implementation specifications and is
organized into a number of technical "subject
matter expert" sub committees.
Market Awareness and Education (MA&E)
Produces tutorials, presentations, press releases,
newsletters, and other informative material.
End User Roundtable (ENR) user group
Goal- to collect higher level requirements and provide these
to the technical and MA&E committees.
Frame Relay forum
Many aspects of frame relay are similar to those of ATM.
They are both connection-oriented protocols, involve
ISDN-based signaling, and require similar network
management functions.
The ATM Forum and the Frame Relay Forum corroborated
closely in the production of Frame Relay/ATM
internetworking specifications.
Today, the Frame Relay Forum and the ATM Forum
are placing a considerable amount of emphasis on the
interoperability of frame relay and ATM services.
There are implementation agreements for
communicating frame relay traffic across an ATM network,
and for communicating between frame relay end systems
and ATM end systems.
This is not limited to basic data transfer but is
expanding to include all types of data and ultimately video
traffic.
The Frame Relay Forum is currently completing a
packetised voice implementation agreement which will go on
to be an ATM Forum standard later this year.
Frame relay will be used well into the next century
because it provides a needed service now and provides a
`natural' data service on future ATM networks.
Internet Engineering Task
Force(IETF)
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Non-profit organization
An open community of network designer, operator..
Defining the standard of Internet such TCP/IP
Organized by topic into several ares (routing,
transport, security…)
Supervise by Internet Architechture Board (IAB)
Support by Internet Society (ISOC) including
logistical, financial and insurance
Standard are expressed in form of Request for
Comment (RFC)
SMDS Interest Group (SIG)
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BackGround
switched multimegabit data services
high-speed, packet-switched, datagram-based WAN
networking technology
speed up to 1.544Mbps over Digital Signal Level 1
(DS-1)
speed up to 44.736Mbps over Digital Signal Level 3
(DS-3)
Network Component
CPE (customer premise equipment), carrier equipment
and SNI (subscriber network interface)
CPE owned and maintain by customer
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end devices such as terminal, personal computer,
routers and modem
carrier equipment consist of high speed WAN swiches
has it own specification of network equipment –
Bellcore
SNI is the interface between CPE and carrier
equipment
border between CPE and carrier equipment
Diagram above show how SNI Provides an Interface
Between the CPE and the Carrier Equipment in SMDS
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SMDS Interface Protocol
a.k.a SIP
use by CPE and carrier equipment to communicate
provide connection through SNI to allow CPE to
access SMDS network
based on the IEEE 802.6 Distributed Queue Dual Bus
(DQDB)
DQDB was chosen as the basis because it is an open
standard that supports all the SMDS service.
plus, it was designed for compatibility with current
carrier transmission standards
CREATING STANDARDS - THE
PROCESS
SUMMARY
ITU-T
include topics such as the definition of the
B-ISDN protocol model, the function and
sequence of each bit in the ATM cell.
ANSI
adopts and adds detail to the ITU-T
standards and deals with issues concerning
the unique North American transmission
requirements.
ETSI
deals with issues concerning the European
communications.
ATM FORUM
working on standards for ATM LAN
emulation.
IETF
defining the standard of Internet such
as TCP/IP. Organized by topic into
several
areas (routing, transport, security etc)
RELAY FRAME
connection -oriented protocols, involve
ISDN-based signaling, and require similar
network management functions.
The SMDS
Interest Group
(SIG)
working closely with the ATM Forum to
specify access to SMDS service over an
ATM UNI interface.
CREATING STANDARDS
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Players
Vendors
Users
Network Service Providers
Process
Work plan
Meetings and contributions
Drafting and review
Voting and approval
Acceptance and interoperability
THE END
THANK YOU