EFM System Model, Block Diagram,
Layer Diagram and Common Terms
Anderson, Tony
Zonu
Bhatt, Vipul
Finisar
Chen, Raymond Virata
Diab, Wael
Cisco
Eaton, George
Intel
Frazier, Howard
Dominet
Haran, Onn
Passave
Hirth, Ryan
Terawave
Gao, Wei
Salira
Gummalla, Ajay Broadcom
Koziuk, Glen
Vitesse
Kuo, JC
Alloptic
Murphy, Tom
Infineon
Pickens, John
COM21
Ribeiro, Carlos
CTBC
Roberts, Hal
ADC
Sala, Dolors
Broadcom
Stanley, Patrick
Elastic
Stiscia, Jim
Virata
Thatcher, Jonathan
IEEE802.3ah Los Angles, California, Oct 17-19 2001
WWP
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Contents
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802 overview and architecture
802.3ah overview and architecture
System model – Switched Ethernet
Subject areas
Layer and block diagram
Definitions and Terminology
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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802 Overview and Architecture
802.10
802.2 Logical Link Control
IEEE Std 802.2, ISO 8802-2-1989
SILS
802
IEEE
802.1 MAC Bridging
IEEE Std 802.1D;1990
Overview
OSI
Layer
2
Architecture
802.1
Management
802.3
802.4
802.5
802.6
802.9
802.11
802.12
802.14
802.15
802.16
802.17
TBUS
TRING
DQDB
ISLAN
WLAN
DPAP
CATV
WPAN
BWA
RPR
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
ISO
ISO
ISO
CSMA/CD
802.3ah
802.7 Broadband TAG (BBTAG)
IEEE 802.7-1989
802.8 Fiber Optic TAG (FOTAG)
IEEE 802.8-1987
IEEE802.3ah Los Angles, California, Oct 17-19 2001
OSI
Layer
1
3
802.3ah Overview and Architecture
Title
---Carrier sense multiple access with collision detection
(CSMA/CD) access method and physical layer specifications Media Access Control Parameters, Physical Layers and
Management Parameters for subscriber access networks
OSI
Reference
Model
Layers
Scope
LAN
CSMA/CD
Layers
Application
LLC - Logical Link Control
Presentation
MAC Control
Session
MAC (CSMA/CD)
Transport
OAM
Network
Data Link
Physical
P2P
PHY
P2MP
PHY
Cu
PHY
Ethernet Access Network
Define 802.3 Media Access Control
(MAC) parameters and minimal
augmentation of MAC operation,
physical layer specifications, and
management parameters for the
transfer of 802.3 format frames in
subscriber access networks at
operating speeds within the scope
of the current IEEE Std 802.3 and
approved new projects
EAN
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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System Model – Switched Ethernet
Media Access Control
and Physical Layer Interface
SLA and QoS
802.1p
Priority
Queuing
Fair
Weighting
802.1Q
VLAN
Tagging
Bandwidth
Shaping
Switching
Table
Packet
Forwarding
Engine
STA
Station
802.3 CSMA/CD
MAC
PHY
MAC
PHY
MAC
PHY
Buffering
MAC
PHY
MAC
PHY
MAC
PHY
MDIO
MMD
IEEE802.3ah Los Angles, California, Oct 17-19 2001
WAN
MAN
EAN
802.3ah
LAN
5
5 Subject Areas
CMP:
LIA:
REQ:
PMD:
PTL:
Compliance Issues
Liaison (OAM, 802.1, ITU-T, etc.)
Network Requirements
Optics and Copper
Protocol
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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Subject Area: CMP
CMP: 802.1 and 802.3 Compliance
How to be Ethernet
n Peer-to-peer network
n Compliance with existing standards
n
• 802.1d – Bridging
• 802.3ad – Link aggregation
• 802.3x – Flow control
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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Subject Area: LIA
LIA: Liaisons
802.3ah OA&M requirements
n 802.3ah OA&M channel allocation
(in/out-band, MAC control, PHY…)
n 802.3ah Environmental requirements
n 802.1 (VLAN, etc)
n ITU-T, TIA
n Other tangential groups
n
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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Subject Area: REQ
REQ: Network Requirements
Service provider issues & perspectives
n Ethernet Access Network requirements
n Application and service requirements
n Performance requirements (delay,
jitter, close-loop constant,….)
n Splitting ratio/distance requirements
n Security and protection requirements
n Feedback to PMD and PTL groups
n
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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Subject Area: PMD
PMD: Optics and Copper
Optical link budgets modeling
n Outside Plant
n Wavelength Plan
n Optical transceiver issues
n Definition of optical interfaces and
terms
n Input to system guard band analysis
n Higher link budgets (APD and FEC)
n Copper PHY issues
n
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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Subject Area: PTL
PTL: Protocol
Time sharing control
n Plug and Play
n Bandwidth resource allocation
n Traffic modeling
n Simulation and performance analysis
n Link level OAM support
n
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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Layer and Block diagram
LLC
Logical Link Control
Peer-to-Peer
MAC Control
Plug and Play
802.3 MAC
Upstream
Bandwidth
Allocation
Policy
Request/Grant
Mechanism
OAM
text
MII or RMII
GMII or TBI
PCS
Compliance
802.1d, 802.3ad, 802.3x
Time Sharing Control
PHY
Optical PMD
Link budget Model
PMA
Guard Band
PMD
Copper PMD
MDI
text
Outside Plant
Wavelength plan
Environmental
High Link Budget
FEC/APD
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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Definitions and Terminology (1)
Abbr.
Term
Definition
EPON
Ethernet Passive Optical
Network
Optical Access Network
Network that carries Ethernet frames over a passive point-to-multiple
points optical physical interface
The set of access links sharing the same network side interface and
supported by optical access transmission system
Provides the optical transmission medium from the OLT towards ONT
and vice versa between optical interface reference point
Equipment that provides network side interface of the OAN
An ONU used for FTTH application and includes user port function
OAN
ODN
ONU
P2MP
Optical Distribution
Network
Optical Line Terminal
Optical Network
Termination
Optical Network Unit
Point to Multiple Point
P2P
Point to Point
OLT
ONT
Ranging
Diplex
Duplex
Simplex
Downstream
Upstream
Equipment that provides access (user) side interface of the OAN
A network configuration which has one input/output at one end with
multiple input/output at the other end
A network configuration which has one input/output at one end with one
input/output at the other end
Procedure to measure optical round trip time between OLT and ONT
The use of a different wavelength for each direction of transmission over
a single fiber
The use of the same wavelength for both direction of transmission over
a single fiber
The use of a different fiber for each direction of transmission
The transmission direction from OLT to ONU
The transmission direction from ONU to OLT
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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Definitions and Terminology (2)
Abbr.
Term
APD
CDR
DBA
EAN
FEC
FTTB
FTTCab
FTTC
FTTH
MAC
MDU
MTU
OAM
ODF
MDIO
MMD
PCS
PHY
PMA
PMD
STA
TC
TDMA
Avalanche Photo Diode
Clock and Data Recovery
Dynamic Bandwidth Allocation
Ethernet Access Network
Forward Error Correction
Fiber To The Building
Fiber To The Cabinet
Fiber To The Curb
Fiber To The Home
Media Access Control
Multi-Dwelling Unit
Multi-Tenant Unit
Operation Administration Maintenance
Optical Distribution Frame
Management Data Input/Output
MDIO Management Device
Physical Coding Sublayer
Physical Layer Device
Physical Medium Attachment
Physical Medium Dependent
Station
Transmission Convergence
Time Division Multiple Access
IEEE802.3ah Los Angles, California, Oct 17-19 2001
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