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Explore the advancements in Optical Access Platforms for Fiber to the Home Networks, including strategies for IP over optics, measurement planes, TV over IP, Multi-Protocol Label Switching (MPLS), Carrier Ethernet, and more. Learn about optimizing bandwidth utilization with TCP vs. UDP tests and the impact on Quality of Service (QoS) and Quality of Experience (QoE).
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All Optical Access Platforms for Fiber to the Home Networks Francesco Matera, Alessandro Valenti, Edion Tego, mat@fub.it In cooperation with Istituto Superiore delle Comunicazioni e delle Tecnologie dell’informazione (ISCOM) FIAT LUX Conference Rome, June 3-5 2015
Outline FIAT LUX Conference Rome, June 3-5 2015 • 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)
Network Layer evolution APP IPTV VoLTE Games webTV Current service model: Best efforts, TCP, Content delivery network (CDN) But congestion and QoS-QoE? Application Presentation Session Transport (TCP, UDP) New Reno, Cubic PP Network (IP) MPLS VPLS Carrier Ethernet Data Center Data Link Physical 4G-5G Optical transmissions VDSL2-G.fast High bit rate transmission
Network Business Models FIAT LUX Conference Rome, June 3-5 2015 • 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
Optical fiber: new ether EU 2020 Agenda: 50% at 100 Gb/s, i.e FTTB/H Two wavelengths: IP and DVB-T IP managed with logical paths (VPLS) Optical fibre Switch/ router D FIAT LUX Conference Rome, June 3-5 2015
TEST BED FUB-ISCOM FIAT LUX Conference Rome, June 3-5 2015
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 FIAT LUX Conference Rome, June 3-5 2015 7
CoS over VPLS in PON networks AN5116-03 ePON FiberHome
Multicast layer 2 Provider backbone bridge TE Onlyone data flux in J1 - ALC2. Packetreplication in ALC2, Not in J1 as in conventionalMulticast IP Server Multicast J2 Client1 ALC2 J3 Client2 ALC1 J1 PBB-VPLS Client3 J4 IP
Multicast layer 1: All optical multicast Differentλfordifferent service based on allopticalWavelenght Converter J3 Alloptical domain Server Multicast J3 Client1 λ2 J4 WC J1 λ1 λ1 λ1 J4 J4 J1 Client2 λ1 TPON J2 2 Client3
Use Cases • SLA Certification and Verification (FUB) • DaaS Troubleshooting (NEC) • Content and Service Popularity (NEC, ALBLF, Polito) • ISP/CDN Cooperation (ALBLF, FTW, Polito) • Streaming Delivery Active Measurements (Netvisor, TI, Fastweb) • WEB Browsing QoE(EURECOM, TI, Fastweb) • Mobile Network Performance (TID, FTW) • Large-Scale Network Anomaly Detection (Polito, FTW)
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)
mSLAcert status • Capabilities • Ping – Dettail • Ping – Average • TCP throughput – Dettail • TCP throughput – Average • UDP throughput – Dettail • UDP throughput – Average • MSLA – Dettail • MSLA – Average
Tested in LAB Supervisor Probe
TCP limits for bandwidth exploitation FIAT LUX Conference Rome, June 3-5 2015
Bandwidth exploitation in GPON: TCP vs UDP (FP7 MPLANE) UDP TCP RTT=0 RTT=100 ms 100 Mb/s decreases down to 40 Mb/s with TCP No reduction with UDP RTT=100 ms FIAT LUX Conference Rome, June 3-5 2015
GPON 100 Mb/s Multisection (RTT=100 ms) FIAT LUX Conference Rome, June 3-5 2015
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
Conclusions Unique Optical infrastructure for Unicast, Multicast, Broadcast Broadcast 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 FIAT LUX Conference Rome, June 3-5 2015