gpon doctor - general presentation sep 2009

8/3/2019 GPON Doctor - General Presentation Sep 2009

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2009 TECNALIA - TELNET-RI

General PresentationGeneral PresentationSeptember, 2009September, 2009


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Supporting service sophistication, the access networksmust evolve to support all possible services from High Speed

Internet to 3D immersive telepresence or HDTV.

Become the playground for video communications,

Video traffic is the main driver behind the Internet trafficgrowth with an aprox 60% of the total IP consumer traffic by

2012, and to

Have a clear business orientation, so that Telecom

Operators could have a short ROI from the CAPEX: Ascenario with High Bandwidth demanding services as well

as SLA guarantee will have to be accompanied by the

necessary upgrading of access networks for supporting

them.

Challenges of future packet NetworksChallenges of future packet Networks

Providing value to current Broadband approaches by:


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Pragmatism scalable enough to address the residential

market while being flexible enough to address the corporate one

Simplicity simple and cost-efficient way to provide

sufficient guaranteed Broadband resources for the mass

market and corporate needs, but without the need to

meet the requirements of all conceivable services.

PragmatismPragmatism andand simplicitysimplicity

The Networks community demands a pragmatic and simple way

to provide services that meet users expectations and are able to

maintain their level of satisfaction always, as well as reducingCAPEX and OPEX for Operators.

Next generation access networks will be based on Fiberdeployments as it is the only communications media that satisfies

the future services bandwidth demand in a pragmatic and simpleway.


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ATM

Switch

1,2G or 622Mb/s down

155/622Mb/s up

15,7-31,6 Mb/s/sub

3,9-15,6 Mb/s/sub

ITU G.984

BPON

Separate RF video overlay

ATM-only transport

Standardized form available

Multi

service

Switch

(OLT)

1,2G or 2,4 Gb/s down

155/2488Mb/s up

33,4-66,8 Mb/s/sub

3,8-60,4 Mb/s/sub

ITU G.984

GPON

Separate RF video overlay

In-band video

Native protocol transport

using GEM


Ethernet

Switch

(OLT)

1Gb/s28,5 Mb/s/sub

25,7 Mb/s/sub

IEEE

802.3ah

EPON

In-band video

Ethernet-only transport


EthernetSwitch

100Mb/sEthernetP2P-DF

In-band video

Ethernet-only transportPassive outside plant


100Mb/s

Ethernet

Switch

Nx1 Gb/s

or 10Gb/sEthernet

P2P-AON

In-band video

Ethernet-only transport

Active outside plant


100Mb/s/subActive

Switch

FTTHFTTH deploymentdeployment alternativesalternatives


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Pragmatic GPON can address up to 128 users with only one

fiber (up to the fiber flexibility point) with less floor space at the

central office, longer reach than other PON alternatives and

lower costs in upgradability.

Simplicity Management, operation and managementin GPON networks provide the lower OPEX of all FTTH

alternatives while efficiently addressing all services QoS

requirements

GPON as best candidate for FTTHGPON as best candidate for FTTH

Although the different alternatives have their pros and

cons, the best candidate for a pragmatic and simple

FTTH deployment is GPON.


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Single fiber infrastructure for all services

(voice, data and video)

Passive optical plant

Typically up to 20km (28dB)

Central office

Level 1Split ratio

Level 2

Split ratio

Single

Family

homes

Multi-Dwelling

units

Small/Medium

entreprises

ONU

ONT

ONT

ONT

ONU

ONU

Optical Line

Terminal (OLT)

2.5Gb/s

1.2Gb/s

1500nm to support

Local CATV serviceif required

1490nm

1310nm

Voice, data and video

TypicalTypical GPONGPON NetworkNetwork ArchitectureArchitecture


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What is needed to knowWhat is needed to know

in a GPON Network?in a GPON Network?

PERFORMANCE BEHAVIOR CHANGES. In a GPON Network thebandwidth is dynamically assigned and the services are provided

using different traffic classes. Changes in the performance canlead to significant service degradations. These situations have tobe identified and solved before the users start calling theHelpdesk

BANDWIDTH ALLOCATION. GPON Access networks are alsoprovided as neutral networks and exploited by differentresellers simultaneously, one of the main worries is that thebandwidth provided to each of their customer is the same as theone contracted

INTEROPERABILITY ISSUES. In GPON Networks there are ONUsand OLT from different system vendors, and although all claim tocomply with the standards there are always small implementationissues that introduce malfunctions within the network.


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REAL TIME UPPER-LAYER TRAFFIC EXTRACTION. GPON Doctor allows the

decryption of bidirectional and Multicast GEM port in real-time and its extraction for

analysis by external Upper-layer traffic analyzer or a protocol analyzer like Wireshark

installed as application within GPON Doctor.

GPON TRAFFIC ANALISYS. GPON Doctor is able to

capture and analyze all the traffic flow between the OLT

and the ONUs/ONTs in a vendor independent way. It willclearly identify interoperability issues as well as show the

configuration status of all active elements in the network,

including the entity-relation diagram of OMCI entities.

BANDWIDTH ALLOCATION MONITORING. GPON

Doctor is able to identify the bandwidth allocated to each

ONU/ONT in real time.

BROADBAND FORUM TR-156/TR-167 ANALYSIS. Infers, within the ODN, the tagging

behavior and VLAN filtering done at the ONTs according to OLT OMCI configuration.

Generation of the association map from the PON transport architecture.

What GPON Doctor can do for you?What GPON Doctor can do for you?


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Connect

OLT ONTOLT ONT

Configure & StartCapture

(do calibration if

required)

StopCapture

NavigatethroughCapture

Analyze &Evaluate

ReviewInferred Info &

Error Report

How GPON Doctor 8000 works?How GPON Doctor 8000 works?


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ThanksThanks forfor youryour attentionattention

www.telnet-ri.es

gpon doctor - general presentation sep 2009

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