Download All optical multicast

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 Conference
Rome, June 3-5 2015
Outline

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)
FIAT LUX Conference
Rome, June 3-5 2015
2/18
2
Network Layer evolution
IPTV VoLTE
Games webTV
APP
Current service model:
Best efforts, TCP,
Content delivery network (CDN)
But congestion and QoS-QoE?
Application
Presentation
Session
Transport (TCP, UDP)
New Reno, Cubic
Network (IP)
PP
Data Link
MPLS VPLS
Carrier Ethernet
Data Center
Physical
4G-5G
Optical transmissions
VDSL2-G.fast
High bit rate transmission
3/18
3
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 InformationCentric Networks)


from host to content oriented: user looks for contents , not for host!
New role for routers: forwarding based on "name" and cash
FIAT LUX Conference
Rome, June 3-5 2015
4/18
4
Optical fiber: new ether
EU 2020 Agenda: 50% at 100 Gb/s, i.e FTTB/H
GPON
(Gigabit PON)
ITU-T G.984
1.2 or 2.4
Gbit/s down
Up to
64(physical)
155, 622, 1.2 or
2.4 Gbit/s up
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
Two wavelengths: IP and DVB-T
IP managed with logical paths (VPLS)
Switch/ Optical fibre
router
D
FIAT LUX Conference
Rome, June 3-5 2015
5/18
5
TEST BED FUB-ISCOM
FIAT LUX Conference
Rome, June 3-5 2015
6/18
6
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
7/18
7 7
CoS over VPLS in PON networks
AN5116-03 ePON FiberHome
8/18
8
Multicast layer 2
Provider backbone bridge TE
Server
Multicast
J
2
ALC2
ALC1
J
1
Client1
PBBVPLS
J
3
Client2
Client3
J
4
IP
9/18
Multicast layer 1:
All optical multicast
Different λ for different service based on all optical
Wavelenght Converter
J3
All optical domain
Server
Multicast
J3
Client1
λ2
WC
J4
J1
λ1
λ1
λ1
J4
J4
J1
λ
Client2
1
TPON
J2
2
10/18
Client3
10
RF TV Optical Spectrum
FM
88÷108 MHz
GSM
900 MHz
LTE
800 MHz
VHF DVB-T
174÷230 MHz
UHF DVB-T
470÷790 MHz
11/18
11
MPLANE Architecture
12/18
Use Cases
1.
SLA Certification and Verification
2.
DaaS Troubleshooting
3.
Content and Service Popularity
4.
ISP/CDN Cooperation
5.
Streaming Delivery Active Measurements
6.
WEB Browsing QoE(EURECOM, TI, Fastweb)
7.
Mobile Network Performance
8.
Large-Scale Network Anomaly Detection (Polito, FTW)
(FUB)
(NEC)
(NEC, ALBLF, Polito)
(ALBLF, FTW, Polito)
(Netvisor, TI, Fastweb)
(TID, FTW)
13/18
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)
14/18
mSLAcert status

Capabilities
1.
2.
3.
4.
5.
6.
7.
8.
Ping – Dettail
Ping – Average
TCP throughput – Dettail
TCP throughput – Average
UDP throughput – Dettail
UDP throughput – Average
MSLA – Dettail
MSLA – Average
15/18
Tested in LAB
Supervisor
Probe
16/18
TCP limits for bandwidth exploitation
FIAT LUX Conference
Rome, June 3-5 2015
17/18
17
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
18/18
18
GPON 100 Mb/s Multisection
(RTT=100 ms)
FIAT LUX Conference
Rome, June 3-5 2015
19/18
19
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
20/18
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
21/18