all optical access platforms for fiber to the home networks francesco matera, alessandro valenti,...

All Optical Access Platforms for Fiber to the Home Networks

Francesco Matera, Alessandro Valenti, Edion Tego, [email protected]

In cooperation with Istituto Superiore delle Comunicazioni e delle Tecnologie dell’informazione (ISCOM)

FIAT LUX ConferenceRome, June 3-5 2015

2/182/18

Strategies for IP over Optics

APPs versus Physical Layers (does APPs exploit all the fiber bandwidth?)

Introduction of Measurement Plane (FP7 EU MPLANE project)

Optical network experimental infrastructure

Different platform for Digital Television on the same fibre

infrastructure (experimental investigation)

TV over IP (unicast, multicast); DVB-T over fiber (broadcast)

MPLANE: QoE vs QoS: Tests on bandwidth exploitation (TCP vs UDP)

Outline

2


3/183/18

Network Layer evolution

3

PP

Physical

Transport (TCP, UDP)

Network (IP)

Data Link

Session

Presentation

Application

APP

High bit rate transmission

IPTV VoLTE Games webTV

4G-5G Optical transmissions VDSL2-G.fast

MPLS VPLSCarrier Ethernet

New Reno, Cubic

Current service model:Best efforts, TCP, Content delivery network (CDN)But congestion and QoS-QoE?

Data Center

4/184/18 4

Network Business Models

For current networks too low revenues for network operators

To assure QoS: Class of Services based on logical and physical paths

Optical wavelengths (L1); LSP (MPLS, VPLS, Carrier Ethernet) (L2.5)

Software Defining Network and Network Function Virtualization

New IP strategies: Content Centric Networks (CCN) (or Information-

Centric Networks)

from host to content oriented: user looks for contents , not for host!

New role for routers: forwarding based on "name" and cash


5/185/18

Optical fiber: new ether

Switch/router

Optical fibre

D

GPON (Gigabit PON)

ITU-T G.984

1.2 or 2.4 Gbit/s down

155, 622, 1.2 or 2.4 Gbit/s up

Up to 64(physical)

Up to 128 (logical)

1490 nm Down

1310 nm Up

(1550 nm Down for RF

video)

GEM: G-PON Encapsulation

Method (supports Ethernet),

ATM

10/20 km (up

to 60 km

EU 2020 Agenda: 50% at 100 Gb/s, i.e FTTB/H

5

Two wavelengths: IP and DVB-T

IP managed with logical paths (VPLS)


6/186/18

TEST BED FUB-ISCOM

6


7/187/18 7

TV over IP: Unicast vs Multicast

Multicast: save bandwidth For Live TV We adopted Carrier Ethernet approach

Provider Backbone Bridge (PBB) Traffic Engineering (TE) we used VPLS (Virtual Private LAN Service) to bring TE

features in PBB (IETF draft-Balus) Fast zapping 120 ms

7FIAT LUX ConferenceRome, June 3-5 2015

8/188/188

AN5116-03 ePON FiberHome

CoS over VPLS in PON networks

9/189/18

IP

Server Multicast

Client1

Client2

Client3

J1

J2

J4

J3

ALC1ALC2

PBB-VPLS

Multicast layer 2Provider backbone bridge TE

10/1810/18 10

TPON

J1J4

J3

2

J4

WC

λ1λ1

λ1λ1

λ1λ1

λ1λ1

λ2λ2

J4

J3

J1

J2

Server Multicast

Client1

Client2

Client3

All optical domain

Multicast layer 1:All optical multicast

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RF TV Optical Spectrum

12/1812/18

MPLANE Architecture

13/1813/18

Use Cases

1. SLA Certification and Verification (FUB)

2. DaaS Troubleshooting (NEC)

3. Content and Service Popularity (NEC, ALBLF, Polito)

4. ISP/CDN Cooperation (ALBLF, FTW, Polito)

5. Streaming Delivery Active Measurements (Netvisor, TI, Fastweb)

6. WEB Browsing QoE(EURECOM, TI, Fastweb)

7. Mobile Network Performance (TID, FTW)

8. Large-Scale Network Anomaly Detection (Polito, FTW)

14/1814/18

mSLAcert active probe

A novel active probe has been introducted to verify and certify the bandwidth offerted to the users by the ISP

It is based on UDP tests that measures bandwidth at layer 2

TCP tests are also included to measure throughput (layer 4)

15/1815/18

mSLAcert status

Capabilities1. Ping – Dettail

2. Ping – Average

3. TCP throughput – Dettail

4. TCP throughput – Average

5. UDP throughput – Dettail

6. UDP throughput – Average

7. MSLA – Dettail

8. MSLA – Average

16/1816/18

Tested in LAB

SupervisorProbe

17/1817/18

TCP limits for bandwidth exploitation

17


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Bandwidth exploitation in GPON: TCP vs UDP (FP7 MPLANE)

18

TCP

RTT=0

RTT=100 ms

UDP

RTT=100 ms

100 Mb/s decreases down to 40 Mb/s with TCPNo reduction with UDP


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GPON 100 Mb/s Multisection (RTT=100 ms)


20/1820/18

Further investigations

SLA (layer 4 vs layer2) could be achieved with Multissession TCP tests (M>10) (IET Communication….);

It is under study for Misurainternet. Analysis of the only normative for QoS

(ETSI): TCP test in 10 ms We demonstrate that it is wrong at 100 Mb/s

21/1821/18

Conclusions

Unique Optical infrastructure for Unicast, Multicast, BroadcastBroadcast at physical layer: new “Optical Ether”To avoid congestion use Multicast

Introduction of Measurement plane (MPLANE)

Role of certification of SLA

Logical and physical paths offered by optical communications


all optical access platforms for fiber to the home networks francesco matera, alessandro valenti,...

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