10 GIGABIT ETHERNET TECHNOLOGY.ppt

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TECHNICAL SEMINAR REPORT

Presented by

Ramotar Prasad Sahoo

Roll No:CS200118210

Under the Guidanceof

10 GIGABIT ETHERNET

TECHNOLOGY

Mr. Pradeep Kumar Jena.


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10 GIGABIT ETHERNET TECHNOLOGY

INTRODUCTION

Ethernet essential for internet.

10 Gigabit Ethernet is the latest.

It finds its applications in LAN, MAN, WAN and SAN.

Provides high speed and reliable network.

Provides low installation and maintenance cost.

Presented By: Ramotar Prasad Sahoo


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HISTORY

Developed by Robert Metcalfe and David Boggs in 1973

at Xerox PARC.

In June 2002 IEEE adopted 10 Gigabit Ethernet

Standard(802.3ae).



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10 GbE TECHNOLOGY OVERVIEW

Retention of 802.3 MAC and frame format

64 1518 Byte frames

Jumbo-frames not included in standard

No half duplex mode

different from other versions of Ethernet

No CSMA/CD on full duplex

Simultaneous sending and receiving at all times

Works with 802.1Q, 802.3ad, etc. Fiber interfaces only no copper versions

LAN PHY 10Gb/s

WAN PHY 9.29Gb/s (SONET framing overhead)



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10 GbE STANDARD

Under the International Standards Organizations Open

Systems Interconnection (OSI) model, Ethernet is

fundamentally a Layer 2 protocol.

IEEE 802.3ae was adapted to include 10-Gbps full-duplex

transmission over fiber-optic cable.

10 Gigabit Ethernet uses the IEEE 802.3 Ethernet Media

Access Control (MAC) protocol, the IEEE 802.3 Ethernet

frame format, and the minimum and maximum IEEE 802.3

frame size.

10 Gigabit Ethernet remains true to the original Ethernet

model.



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10 GbE ARCHITECTURES

10 Gigabit Ethernet uses two separate encoding steps.

The encoded data provides synchronization, efficient usage of

bandwidth, and improved signal-to-noise ratio characteristics.

All 10GbE varieties use optical fiber media.



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802.3ae Architectural Components

WWDMPDM1310nm

WWDMLAN PHY8B/10B

Serial LAN PHY64B/66B

SerialPMD

850nm

SerialPMD

1310nm

SerialPMD

1550nm

SerialPMD850nm

SerialPMD

1310nm

SerialPMD

1550nm

Serial WAN PHY64B/66B + WIS

10Gb Media Independent Interface (XGMII) or

10Gb Attachment Unit Interface (XAUI)

Full Duplex 802.3 Media Access Control (MAC)



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GIGABIT vs 10-GIGABIT ETHERNET

Gigabit Ethernet 10-Gigabit Ethernet

CSMA/CD + full duplex Full duplex only

Leveraged Fibre Channel PMDs New optical PMDs

Reused 8B/10B coding New coding schemes 64B/66B

Optical/copper media Optical media only

(copper in development)

Support LAN to 5 km Support LAN to 40 km



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CHIP INTERFACE(XAUI)

The XAUI is designed as an interface extender, and the

interface, which it extends, is the XGMII, the 10 Gigabit

Media Independent Interface.The XGMII is a 74 signal

wide interface (32-bit data paths for each of transmit

and receive) that may be used to attach the EthernetMAC to its PHY.

Benefits of XAUI technology - low EMI due to it's self-

clocked nature, compensation for multi-bit bus skew --

allowing significantly longer-distance chip-to-chip --error detection and fault isolation capabilities, low power

consumption, and the ability to integrate the XAUI I/O

within commonly available CMOS processes.



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PHYSICAL MEDIA DEPENDENTS(PMDs)

The IEEE 802.3ae Task Force has developed a draftstandard that provides a physical layer that supports link

distances for fiber optic media as shown in Table A. To

meet these distance objectives, four PMDs were

selected.



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PHYSICAL LAYER(PHYs)

The LAN PHY and the WAN PHY will operate over common

PMDs and, therefore, will support the same distances. .

The 10 Gigabit LAN PHY is intended to support existing

Gigabit Ethernet applications at ten times the bandwidth with

the most cost-effective solution.

The 10 Gigabit Ethernet WAN PHY supports connections to

existing and future installations of SONET/SDH (Synchronous

Optical Network/Synchronous Digital Hierarchy) circuit-

switched telephony access equipment.



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APPLICATIONS FOR 10 GbE

10 Gigabit Ethernet in Local Area Networks

Ethernet technology is already the most deployed technology for

high performance LAN environments.

With the extension of 10 Gigabit Ethernet into the family ofEthernet technologies, the LAN now can reach farther and

support up coming bandwidth hungry applications.

With 10 Gigabit backbones installed, companies will have the

capability to begin Gigabit Ethernet service to workstations and,

eventually, to the desktop in order to support applications such asstreaming video, medical imaging, centralized applications, and

high-end graphics.



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10 GbE in Metropolitan and Storage Area Networks

Gigabit Ethernet is already being deployed as a

backbone technology for dark fiber metropolitan

networks. With appropriate 10 Gigabit Ethernet

interfaces, optical transceivers and single mode fiber,service providers will be able to build links reaching

40km or more.

10 Gigabit Ethernet will provide infrastructure for both

network-attached storage (NAS) and storage areanetworks (SAN).




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10 Gigabit Ethernet in Wide Area Networks

10 Gigabit Ethernet will enable Internet service

providers (ISP) and network service providers (NSPs)

to create very high-speed links at a very low cost,

between co-located, carrier-class switches and routersand optical equipment that is directly attached to the

SONET/SDH cloud.

10 Gigabit Ethernet with the WAN PHY will also allow

the construction of WANs that connect geographically

dispersed LANs between campuses or POPs (points of

presence) over existing SONET/SDH/TDM networks.




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10 Gigabit Ethernet as a Fabric Interconnect

10 Gigabit Ethernet is in a position to replace all these

proprietary technologies as a next-generation interconnect

for both server and storage-area networks for several

reasons:


Cost-Saving Server Consolidation.

10 Gigabit Ethernet Offers the Necessary Bandwidth.

Planned Growth of 10 Gigabit Network Features.



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USING FIBER IN 10GbE

There are two types of optical fiber, multimode andsingle mode fiber, that are currently used in data

networking and telecommunications applications.

The 10 Gigabit Ethernet technology, as defined in the

IEEE 802.3ae standard, supports both optical fibertypes.

However, the distances supported vary based on the

type of fiber and wavelength (nm) is implemented in the

application.



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THE FUTURE OF 10GbE

Will There be Copper?

IEEE 802.3 has recently formed two new study groups

to investigate 10 Gigabit Ethernet over copper cabling.

The 10GBASE-CX4 study group is developing astandard for transmitting and receiving XAUI signals via

a 4-pair twinax cable, commonly referred to as a 4x

InfiniBand cable.

The 10GBASE-T study group is developing a standardfor the transmission and reception of 10 Gigabit

Ethernet via a Category 5 or better unshielded twisted

pair (UTP) copper cable up to 100 m.



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10 GbE MARKET OVERVIEW

Extension of existing Ethernet family of standards

Another 10x jump for higher capacity

Typical Ethernet applications at higher speed

Also positioned as a MAN/WAN technology for use over

dark fiber or SONET/SDH



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CONCLUSION

10 Gigabit Ethernet is very much necessary for

todaysnetwork and is viable now.

10 Gigabit Ethernet forms the backbone of

todaysnetwork due to its enhanced features. In future it will provide more better networking

solutions as continuous efforts have been put

into it to upgrade it.


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THANKYOU !!!!!!!!

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