Overview of GARR Optical Network - CESNET · PDF fileGARR-X: since 2011 Gloria Vuagnin - GARR 9th CEF Networks Workshop | Prague, September 12th 2017 Huawei OptiX OSN 8800 (6800 on

Overview of GARR Optical Network

Today’s experience with AW and the future of GARR network

Gloria Vuagnin (Paolo Bolletta, Massimo Carboni) - GARR

9th CEF Networks Workshop | Prague, September 12th 2017

GARR: fibre footprint & optical Network

9th CEF Networks Workshop | Prague, September 12th 2017 Gloria Vuagnin - GARR

IRU fiber footprint 15000 km ~9.000 Km of backbone

~6.000 Km of access links

About 1000 user sites interconnected > 1 Tbps aggregated access capacity

> 2 Tbps Backbone Capacity

DWDM/OTN/ROADM Network • (2011) Huawei 1/10 G

• (2015) Infinera 10/40/100 G

• (Today) Alien Waves 100G between Core PoPs

Core IP/MPLS network • Juniper MX960/480/80

Metro/Aggregation • Cisco ME3600/3400

• CPE Cisco 2900 series

MI1 MI2

BO1

RM2

BA1

HOW DID WE GET THERE? Short history on how we built our current infrastructure:


GARR-X: since 2011


Huawei OptiX OSN 8800 (6800 on ILA)

Key properties: • 80 channels @50GHz spacing

• DCM compensated

• λs: 10G and 40G IM-DD OOK

• Max capacity: 3.2 Tbps

• ROADM: • core nodes: colorless & directionless

• colored & directionless

• WSON control plane: preset restoration

• MUX and WSS: equipped with VOA

• Integrated OSA Board in each node

• OTN Matrix: 1.28Tbps

• Client: 1G, 10G

GARR-X Progress: since 2015


Infinera DTN-X Intelligent transport network

Key properties:

• 16 superchannels@500G Fixed Grid

• For each superchannel: 10 coherent carriers spacied at 200GHz on a 25GHz Grid

• PM-QPSK, PM-BPSK

• Max capacity: 8 Tbps

• NO WSS

• SD-FEC (reach up to ULH)

• OTN Matrix: 5Tbps or 2Tbps

• GMPLS control plane

• Client: 10G, 40G, 100G

• Restoration and protection available

WHY NOT TO TEST ALIEN WAVES ? To different optical platforms:


Why and where


RM2

NA1

Test 1 Test 2

Path RM2-NA1 RM2-AQ-PE-BA1-MT-NA1

Distance (km)

345 1181

Line Attenuation (dB)

93 314

# ROADM 2 6

# Raman Span 1 3

why: • Increase P2P capacity • Make 100GE client services

available in the northern network • the Infinera node needed only

where the 100GE service ends

• Extend the lifetime of the Huawei technology • All terminal nodes are kept to

deliver the native 10 Gbps services. Amps serve both platforms

Goal: To measure performances/pe- nalties of the Infinera superchannel alongside native lambdas over Huawei line system

Idea: • Share of the optical spectrum

among Huawei and Infinera signals

Where

Huawei Native Channels

C-BAND

50GHz

Infinera Alien Wave over Huawei

TX RX

INFINERA Alien Sys

TX/RX

INFINERA Alien Sys

TX/RX

QPSK QPSK

#8

Optical Fiber

Amplifiers

TX RX

TX RX

TX RX

Single Vendor Domain: HUAWEI

MU

X M

UX

IM-DD IM-DD

DCM

Infinera AW SuperChannel

4 8 12 16 20 24 28 32 36 40

100G PM-QPSK

dual carrier

10G IM-DD

11 5 6 38 39

25GHz

200GHz

Infinera node

LIN

E W

Superchannels Mux/demux (BMM2c)

Infinera NMS DNA

Lin

e c

ard

- A

OLX

Lin

e c

ard

- A

OLX

Sup

erch

ann

el

Setup for the test


WSS

LINE N

WSS

LINE E

WSS

mux

demux

ITL ITL

Huawei node

Lin

e c

ard

- A

OLX

Huawei NMS U2000

The superchannel is split on its 10 carriers and enter Huawei Node through the A/D section

Monitoring point

Carrier 1

Carrier 10

Adaptation section Carriers mux/demux

Superchannel

OSA measurements @ RM2 (Rx Line)

#10

The ALIEN Infinera superchannel: 10 carriers- 200GHz spacing

Here 5 native Huawei signals together with 10 ALIEN Infinera carriers

11

13,77 13,63 13,32 13,14

12,92 12,63

6,50

7,50

8,50

9,50

10,50

11,50

12,50

13,50

14,50

0 1 2 3 4 5

AV

G Q

VA

LUE

(DB

)

HUAWEI CHANNELS

ALIEN WAVES + CANALI NATIVI

Alien Wave SuperChannel

4 8 12 16 20 24 28 32 36 40

38

Huawei Channels - Native

6 39

11

5

Shared optical spectrum: Q-value vs. number of native channels

Threshold value for Q-value

Acceptance value for carriers Q-value

Huawei signals have shown to be really robust. Huawei NMS did not reported any

performance variations due to the presence on aliens even on adjacent signals

(PRE-FEC BER <10-13).

Native and Alien signals performances

#12

QPSK vs BPSK signals performances

13,77 13,32

12,63

16,37 16,31 16,15

6,50

8,50

10,50

12,50

14,50

16,50

18,50

AW Muxing AW + 2 NativeW(1 Guard CH)

Muxing AW + 5 NativeW(NO Guard CH)

AV

G Q

Val

ue

(dB

)

QPSK BPSK

AW signal performance vs distance

Only AW

AW + Native AW + Native

Linear fit INFINERA

Native

Threshold value for Q-value

Acceptance value for carriers Q-value

WE CAN make use of AW method to strengthen GARR northern optical network

With the deployment of Infinera nodes in four PoPs - MI1, MI2, RM2, BO1 – we can:

• increase the p2p capacity among these core PoPs

• make available 100GE client services

Result of Alienwaves test


Span properties


This span is the more challenging. Infinera suggested to apply red/blue spectrum split

BO1-MI1 RM2-BO1 BA1-BO1 RM2-MI2

Path BO1-MI1 RM2-FI1-BO1BA1-PE-AN-

BO-BO1

RM2-RM1-PI1-

GE-MI2

Distance (km) 277 495 813 1131

Attenuation (dB) 78 105 232 325

# OLA 2 4 10 12

# ROADM 2 3 6 5

# Raman Span 1 3 2 3

MI1 MI2

BO1

RM2

BA1

Infinera node

LIN

E W

Superchannels Mux/demux (BMM2c)

Infinera NMS DNA

Lin

e c

ard

- A

OLX

Lin

e c

ard

- A

OLX

Sup

erch

ann

el

Setup for production


WSS

LINE N

WSS

LINE E

WSS

mux

demux

ITL ITL

Huawei node

Lin

e c

ard

- A

OLX

Huawei NMS U2000

The superchannel is splitted on its 10 carriers and enter Huawei Node through the A/D section

Monitoring point

Carrier 1

Carrier 10

Adaptation section Carriers mux/demux

Superchannel

Alien direction

Alienwaves Performances


MI2 MI1

RM2 BO1

BA1

PA1 CT1

NA1

11

31

km

27

7 k

m

81

3 k

m

495 km

191.725 THz 196.050 THz

192.10 THz 195.925 THz

INFINERA

HUAWEI

AW length

[km]

modulation red/blue

split

expected

Qvalue

[dB]

min

Qvalue

[dB]

max

Qvalue

[dB]

Average

Qvalue

[dB]

AW1 BO1-MI1 277 PM-QPSK no 12.2 13.46 14.06 13.74

AW3 BO1-RM2 495 PM-QPSK no 8.84 9.58 12.08 11.15

AW4 BA1-BO1 813 PM-QPSK no 8.03 7.17 10.46 9.22

AW5 RM2-MI2 1131 PM-QPSK yes 8.9 11.14 11.92 11.44

Measured values

Simulated values

Alienwaves performances


Red/ Blue split applied

Load test


Ethernet load seen from the routers.

This was a fiber cut These are line card resets, needed to solve a cosmetic bug

100Gb/s

FUTURE OF GARR NETWORK A glance on the


Architecture from the provider point of view

CO

RE

SER

VIZ

I

AG

GR

EGA

ZIO

NE

AC

CES

SO

AC

CES

SO

UTE

NTE

UTE

NTE

FIN

ALE

CHI? Quali Servizi? Che modello di rete a supporto dei servizi?

Slide ‘stolen’ from Massimo Carboni presentation at WSGARR2016

Architecture from the user point of view

CORE AGGREGAZIONE ACCESSO ACCESSO UTENTE

SERVIZI UTENTE FINALE

Slide ‘stolen ’ from Massimo Carboni presentation at WSGARR2016

• Evolution of network requirements: • Centrality of the single user • Network perceived as invisible and ubiquitous • Increase request of fast deployment of new services

• GARR need to modify its services? • In addition to the usual: capacity, capacity and capacity • Security, Trust&identity, Computer&storage

Which are the emerging technologies? • Automation, Disaggregation, Softwarization, Open

These network technologies will change: • the skills to manage the network (net engineer ICT engineer) • Organizational models

How to be ready at the time when everything will be different ?


Basic facts while thinking of GARR evolution

In GARR we started the Elisa project

Evolved Layered network Infrastructure with Software/services Architecture

(Evoluzione rete con LIvelli Software Avanzati)

GOAL of ELISA project:

design our future network taking the inherent opportunities offered by the new paradigm shift

We wrote a white paper on our current vision and ideas. We really appreciate any comment, advice and open discussion with other NRENs on this topic.

https://www.garr.it/documenti/3474-garr-white-paper-maggio-2017












Network (and ICT) Evolution Trends

L0

L7

L3

From traditional stack To overlays

WDM

OTN

PACKET

IP/MPLS

NAT/FW/DNS

APP Services

L3-L7

L0-L2

Through Layered Network

ELISA-INFRA | Progetto Evoluzione Rete #25

APPS Services

Orchestrator

OVERLAY

SDN Controllers

Open Line Systems

Flex-Grid Packet/OTN

Flex-Modulation

UNDERLAY

Computing Storage

Proposal: a NRENs-vendors workshop

• Why not to organize a workshop where the NRENs together meet the vendors to discuss new trends, visions, ideas, NRENs requirements, vendor solutions ?

• Just a couple of items which sound interesting: • Automation described through a use case: e.g. High capacity on demand

• To dynamically establish high capacity interconnections between user premises (DC)

• Multi-layer optimization • To optimize the use of resources through a Multi-Layer approach for both network design and

monitoring

• Multi-vendor network integration • Multi-Vendor and disaggregated approach

• Virtual CPE • Agile delivery of new network services (NS) with modular network functions (NF)

• Metro-Regional Photonic layer • To implement a programmable and flexible photonic layer in a metro-regional area

CEF Network Workshop is a great place to get new ideas and advices.

We really appreciate an open discussion with you on the network evolution

Thank you

Conclusions


7th CEF

GARR evolution

8th CEF 9th CEF

2017 2016 2015 2012 2013 2014

Documents

Overview of GARR Optical Network - CESNET · PDF fileGARR-X: since 2011 Gloria Vuagnin - GARR 9th CEF Networks Workshop | Prague, September 12th 2017 Huawei OptiX OSN 8800 (6800 on