open optical & packet transport cassini and dcsg applications … · 2021. 1. 25. · supports...

Copyright 2020 © Telecom Infra Project, Inc.

Open Optical & Packet Transport

Cassini and DCSG applications

and use cases tests for E-Metro

and Long-haul with Padtec

Optical Layer at

TIP Community Lab

Copyright 2020 © Telecom Infra Project, Inc. 2 C2 General

Summary

Executive Summary 3

Topology and High Level Design 4

Participants and Partners 5

Test Scenarios 6

Test Case 1 (TC1) – Optical Extended Metro Network 6

Test Case 2 (TC2) – Optical Long-Haul Network 7

Hardware Contribution 8

CASSINI an Open Packet-Optical Transponder 8

CFP2-DCO 100G/200G pluggable transceiver 9

DCSG – Distributed Cell Site Gateway 10

Padtec LightPad i6400G Platform 11

VIAVI T-BERD/MTS-5800 and MTS8000-100G/200G 13

Software Contribution 14

IP Infusion Solutions within TIP Framework 14

Cassini 15

Disaggregated Cell Site Gateway (DCSG) 16

Test Book and Results 17

Enhanced RFC2544 Benchmarking Methodology for Network Interconnect Devices 17

Quality of Service on VLAN Priorities 30

24h Stability Test and KPIs 32

Optical Measurements 33

Conclusions 34

Abbreviations 35

Attachments 36

CPQD COMMUNITY LAB - OOPT LAB TRIAL

Copyright 2021 © Telecom Infra Project, Inc. 3

Executive Summary Following a test plan for validating a Cassini applicability with Disaggregated Optical Architecture

in two different deployment scenarios, this lab trial was focused on verifying the use of Cassini in

Extended Metro and long-haul scenario without regeneration. In particular, we demonstrated a

lab trial of 100G/200Gbps alien wavelength transmission and management onto a 2000km link

distance with an average span of ~150km using hybrid amplifiers.

Extended Metro and Long Haul scenarios were considered, with the following results:

TC1 Scenario

Module BW Reach Mod Format Estimated Rx OSNR

Pre FEC BER

RFC 2544

E-Metro DCO 200Gbps 850km DP-8QAM 20.5 dB 4.1983e-03 PASS

TC2 Scenario

Module BW Reach Mod Format Rx OSNR Pre FEC

BER RFC 2544

Long-haul DCO 100Gbps 2000 km DP-QPSK 17 dB 2.10e-04 PASS



Topology and High Level Design

Transport demo capacity and distance – High Level Design

Note: Equipment datasheet and the diagram with higher resolution can be found in the attachment section.



Participants and Partners

Participants

Company Name Contact

João Araujo [email protected]

Giovani Siqueira [email protected]

Gustavo Correa [email protected]

Rafael Bezerra [email protected]

Victor Proscurchin [email protected]

Eduardo Hirata [email protected]

Plinio de Paula [email protected]

Fabio Marchiori [email protected]

IPI support team / IPI Eng team / IPI Product Marketing

Host Community Lab

Partners



Test Scenarios

Test Case 1 (TC1) – Optical Extended Metro Network Following a test plan for validating a Cassini applicability with Disaggregated Optical Architecture

in a Metro extended scenario without regeneration. Demonstrate a lab trial of 200Gbps alien

wavelength transmission and management onto a 850km (can achieve over 1000km) link

distance with average span of ~150km using hybrid amplifiers.

Test Configuration Description Peformance

E-Metro 200G Working Path DP-8QAM – 200Gbps

1. Enhanced RFC2544 Benchmarking Methodology for Network Interconnect Devices

2. Quality of Service on VLAN Priorities

o MTS8000 – SUT: CASSINI CASSINI (same time)

o MTS5800 - SUT: DCSG CASSINI CASSINI DCSG (same time)

o MTS5800 (w/ MPLS) - SUT: DCSG CASSINI CASSINI DCSG (same time)

3. 24h Stability Test and KPIs

4. Optical Measurements



Test Case 2 (TC2) – Optical Long-Haul Network Following a test plan for validating a Cassini applicability with Disaggregated Optical Architecture

in a Metro extended scenario without regeneration. Demonstrate a lab trial of 100/200Gbps alien

wavelength transmission and management onto a 2000km link distance with average span of

~150km using hybrid amplifiers.

Test Configuration Description Peformance

Long-Haul 100G Working Path DP-QPSK – 100Gbps

1. Enhanced RFC2544 Benchmarking Methodology for Network Interconnect Devices

2. Quality of Service on VLAN Priorities

o MTS8000 – SUT: CASSINI CASSINI (only)

o MTS5800 - SUT: DCSG CASSINI CASSINI DCSG (only)

o MTS5800 (w/ MPLS) - SUT: DCSG CASSINI CASSINI DCSG (only)

3. 24h Stability Test and KPIs

4. Optical Measurements



Hardware Contribution List of equipment’s available for the trial setup.

CASSINI an Open Packet-Optical Transponder Quantity used in the setup is two units of the Cassini chassis and 2 Units of ACO line cards.

What is it: An open and disaggregated packet/optical transponder contributed by Edge-corE.

Cassini integrates 100GbE Layer-2/3 switching with Layer-1 optical transport functions as

line-card modules, and covers data center interconnect, metro and access backhaul use cases.

It is currently the industry's highest capacity open-sourced Whitebox packet transponder.

Why:

o Pay as you grow / Modularity: Cassini doesn't come with the optical components built-

in; they are added as pluggable modules instead. This provides the ability to start small

(with lower cost) and ramp up on capacity as needed. This addresses the feedback we've

gotten about Voyager.

o Flexibility: Cassini provides a wider choice of technologies (variable number of 100G

client ports) and different 100/200 Gbps coherent optical interfaces (ACO/DCO).

o Optical module vendor continuity and interoperability: For each type of optical

modules, we have more than 1 vendor to source from. CFP2-ACO modules that have

been validated and integrated with TAI (Transponder Abstraction Interface) are

Lumentum and Fujitsu Optical Components. CFP2-DCO modules that have been

validated and integrated with TAI are Lumentum and Acacia. Enabled by TAI, modules

from different vendors can interoperate with each other.

2x Cassini product Datasheet.

https://www.edge-core.com/_upload/images/AS7716-24SC_DS_R02_20190304.pdf



CFP2-DCO 100G/200G pluggable transceiver Quantity in the setup is four units

What is it: The Lumentum CFP2-DCO pluggable transceiver is a CFP2 MSA-compliant

digital coherent optical module designed for line-side trunk DWDM data center interconnect

(DCI), metro carrier, and regional/long haul applications. The 100 and 200 Gbps per

wavelength CFP2 digital coherent optical transceiver incorporates Lumentum co-packaged

indium phosphide (InP) PICs including Lumentum narrow linewidth tunable laser, both the

Lumentum InP Mach-Zehnder modulator and the Lumentum micro-intradyne coherent

receiver (µICR) with integrated VOA, together with the industry’s most interoperable digital

signal processing (DSP) ASICs to support 100 Gbps PM-QPSK and 200 Gbps PM-

8/16QAM transmissions.

▪ Supports 100 Gbps DP-QPSK and 200 Gbps DP-8QAM/DP-16QAM modulations

▪ Interoperable staircase FEC and low latency 15% soft decision-FEC support

▪ Flex-grid DWDM support with gridless tuning (100 MHz resolution)

▪ Standard CFP2 form factor module outline (106 x 41.5 x 12.4 mm)

▪ Low power consumption and heat dissipation suitable to multiple end user platforms

Product and vendors involved in the trial: 2x Lumentum CFP2-DCO 100G/200G Pluggable Transceiver

https://www.lumentum.com/en/products/cfp2-dco-100g-200g-pluggable-transceiver



DCSG – Distributed Cell Site Gateway Quantity in the setup is four units

What is it: Disaggregated Cell Site Gateways (DCSG) is a family of white-box aggregation

routers based on an open and disaggregated architecture for existing 2G/3G/4G and 5G

mobile infrastructures.

o Optimized for 1GE, 10GE, 25GE and 100GE connectivity o Extended operating temperature range for cell sites o Front panel display for system operational status and easy deployment o Zero-Touch Provisioning o Deep packet buffering o Pay-As-You-Grow software packaging o Small physical form factor of 1RU Product and vendors involved in the trial: 2x Distributed Cell Site Gateway AS7316-26XB

https://www.edge-core.com/_upload/images/AS7316-26XB_DS_R04_20191204.pdf



Padtec LightPad i6400G Platform DWDM Grid

ROADM WSS50 The WSS ROADM structure of the LightPad i6400G Platform allows DWDM nodes of up to 9 directions (up to Grade 9). In these nodes, it is possible to configure channels for addition, derivation or passage to any of the directions. Support Directionless and Colorless architecture. ROADM WSS-50 is a flexible and scalable alternative, applicable for sites with up to 5 directions, which allows configuring any signal received at a node as a local add / drop or passing from one of the directions to any of the other 4 possible.

OTDR Test unit The OTDR optical test unit uses optical time domain reflectometry (OTDR) technology to provide continuous OTDR monitoring of optical fibers in the network, notifying users of any degradation affecting the monitored fibers and their location. WDM filters when combined with optical time domain reflectometry (OTDR) technology enable continuous monitoring of the integrity of multiple optical fibers. With the function of coupling the OTDR signal to the data signal, the Filter inserts the OTDR signal into the DWDM transmission network in order to avoid interference between the OTDR pulse bands transmitted on each of its ports.

OCM-40 The OCM board is used in applications with ROADM WSS to measure the power of each channel on the LINE OUT interface of the WSS boards. In addition, the OCM sends, through the backplane, channel power information to the WSS cards. In this way, WSS cards can perform dynamic and automatic equalization, controlling the attenuation of internal VOAs. OCM allows real-time monitoring of the channels' power levels, through the management system.

Optical Protection Switch (OPS) The OPS (Optical Protection Switch) unit is a system for automatic switching between two optical fibers or two optical channels based on the drop in the received optical power



level. It is used to protect the multiplexed optical signal or to protect each optical channel individually. The automatic switching system complies with ITU-T G.664 and GR-2979-CORE recommendations.

HOA: Hybrid amplifier The 4.5U amplifiers have up to two stages for amplifying optical signals in the same mechanics and can have SCMD (Supervisory Channel Mux / Demux) integrated to couple / separate the supervision channel from the data channels. Each stage can be manufactured with different amplification techniques and pumping lasers of different maximum powers. Amplification techniques used in 4.5U optical amplifiers: Hybrid Amplifier: uses a hybrid stage composed by amplification by Raman followed by amplification by EDFA (Pre), both in the reception direction of the optical signals. For the Dual Hybrid amplifier, there is also an EDFA transmission stage (Booster).

EOA: EDFA amplifier The 4.5U amplifiers have up to two stages for amplifying optical signals in the same mechanics and can have SCMD (Supervisory Channel Mux / Demux) integrated to couple / separate the supervision channel from the data channels. Each stage can be manufactured with different amplification techniques and pumping lasers of different maximum powers. EDFA amplification: its operating principle is based on the pumping of a fiber segment doped with Erbium through a high power laser. In the presence of this pumping, the Erbium ions are excited to a higher, but unstable, energy level, then returning to the initial level. This decay process releases energy in the form of photons with a wavelength around 1550nm when entering the phase with the received optical signals promote their amplification.

Muxponder TM200G The 200 Gb / s Muxponder performs the multiplexing of 2 optical signals of the QSFP28 interface (100GbE and OTU4) in 1 optical signal of the CFP2-DCO interface (OTU4 / 200G proprietary) that modulates the network side optical carrier within the ITU-T standardized DWDM grid.



VIAVI T-BERD/MTS-5800 and MTS8000-100G/200G Quantity in the setup is one MTS5800 dual port unit and two MTS8000 single port

What is it: The industry’s smallest handheld, dual-port 100G test instrument can test

throughout the life cycle of a network service, including fiber testing, service activation,

troubleshooting, and maintenance. Equipped with latest technology interfaces including

SFP/SFP+/SFP28 and QSFP+/QSFP28/CFP4, the 5800-100G provides the investment

protection needed to manage network growth while keeping customer satisfaction high.

With advanced test features such as Optics self-test, Ethernet line rate capture/decode, and

OTN Check, technicians can now test their networks faster and more accurately than ever

before.

o Supports comprehensive rate testing ranging from DSx/PDH (1.5M/2M) through to 112G OTU4.

o Saves time with the industry’s fastest RFC 2544 and Y.1564 SAMComplete™ Ethernet service-activation test including nanosecond-accurate latency measurements. Also supports RFC 6349 TrueSpeed

o Ensures QSFP+/QSFP28 and CFP4 modules run error-free with the field optimized Optics Self-Test

o Provides speed and efficiency in testing OTN service activation with the OTN Check workflow automated script

o Supports VIAVI’s 4100-Series OTDR and COSA modules with Smart Link Mapper™, fiber microscopes, and optical power meters

o Tests synchronization and timing using the TEM (Timing Expansion Module) o AOC/DAC/breakout cable testing

Product and vendors involved in the trial: 1x VIAVI T-BERD/MTS-5800-100G 2x VIAVI T-BERD/MTS-8000

https://www.viavisolutions.com/en-us/products/t-berd-mts-5800-100g

https://www.viavisolutions.com/en-us/products/t-berd-mts-8000-scalable-multitest-platform



Software Contribution

IP Infusion Solutions within TIP Framework

IP Infusion has been an active member of the TIP community, contributing to innovations within the OOPT group on multiple projects like Disaggregated Cell Site Gateway (DCSG), Cassini (open packet/optical transponder), Phoenix (open white-box transponder), Open Softhaul and others.

In compliance with the TIP/OCP framework IP Infusion’s OcNOS provides the 5G Mobile

Transport Solution supporting Multi-protocol and X-haul use-cases.

Further details regarding IP Infusion’s Solutions in compliance with the TIP framework are

available at - https://www.ipinfusion.com/accelerating-network-disaggregation-with-tip-oopt-dcgs-

cassini/#ft

https://www.ipinfusion.com/accelerating-network-disaggregation-with-tip-oopt-dcgs-cassini/#ft

https://www.ipinfusion.com/accelerating-network-disaggregation-with-tip-oopt-dcgs-cassini/#ft



Cassini The Cassini packet transponder is a fully open source hardware design, as Edgecore has

contributed the full design to TIP. Cassini is a 1.5RU form factor with system throughput of

3.2Tbps. Cassini has sixteen fixed 100 Gigabit Ethernet QSFP28 ports, plus eight line card slots to

incorporate a flexible mix of additional 100GbE ports or ACO/DCO optical ports based on

coherent DSP and optical transceivers from leading optical technology partners. The following

line cards are available, providing the network operator with a scalable pay-as-you-grow

platform.

• 100GbE Line Card: 2 x 100GbE QSFP28 with MACsec • DCO Line Card: 1 x 100G/200G CFP2 with MACsec, supporting DCO pluggable

transceivers • ACO Line Card: 1 x 100G/200G CFP2 with NTT Electronics ExaSPEED 200 DSP, supporting

CFP2- ACO Coherent Optical Transceiver The IP Infusion’s OcNOS Optical Transport Network (OTN) Solution addresses the following use-

cases –

• Data Center Interconnect • Backhaul of Access Edge Services • Metro Ethernet Services • Longhaul using ACO with appropriate DSP

Following are the key features supported as part of the IP Infusion’s OcNOS OTN Solution –

Description Features

Form factor • Modular chassis with Coherent pluggable cards. • Choice of ACO or DCO optics. • 200G or 100G DWDM (400G roadmap)

Distances Metro to Longhaul (100Km to 1000Km+)

Feature Overview

• L1 Cross-connect for Transponder use-case • L2/L3 Switch for Packet Transponder Applications • Configuration, Monitoring and Debugging of Optical Line • Open API and Management Interfaces

Monitoring

• Current pre-FEC BER (bps), current post-FEC (bps) • Current input power (dBm), current output power (dBm) • Current frequency (Hz) • Chromatic Dispersion and DGD counter on the OTN side • Current OSNR Estimate • Current Q-Margin • Modulation Format

Debug and Alarms • PRBS – generator and checker • Loopback – hostif and networkif • PM Counters

Management and Automation • ZTP, • Netconf/Openconfig, • Telemetry

Supported CFP2 vendors Lumentum, Fujitsu, Acacia

Further details on IP Infusion’s OTN Solution are available at -

https://www.ipinfusion.com/products/ocnos/?3#otn

https://www.ipinfusion.com/products/ocnos/?3#otn



Disaggregated Cell Site Gateway (DCSG) The DCSG project, which is under Open Optical and Packet Transport (OOPT) group, has recommended a cell site router deployment model which simplifies design and operation of carrier networks. IP Infusion’s OcNOS-SP-CSR is a complete carrier class, Cell Site Router (CSR) solution, aligning with TIP’s DCSG technical specification. The technical specification provides detailed requirements for CSR device that operators can deploy in current and future generations of wireless transport networks.

The OcNOS-SP-CSR solution is a smart converged integrated access platform which enables service providers to deliver next-level business and entertainment experiences and it comprises of the following core components:

• Multi-vendor CSR hardware platform: An Open Compute Project (OCP)2 and TIP DCSG Compliant ODM smart integrated access device platform supporting 300Gbps capacity.

• OcNOS full-featured network OS for White Box. Its features include advanced capabilities, such as extensive switching and routing protocol support, MPLS (Multiprotocol Label Switching), and SDN (software defined networking). OcNOS features hybrid, centralized or distribute network support; scalable, modular high-performance network; and a robust data plane built on merchant silicon.

• IP Infusion Advanced Network Services: Comprehensive network design, installation, commissioning, monitoring and technical support services.

Further details regarding IP Infusion’s DCSG Solution are available at –

https://www.ipinfusion.com/products/csr-dcsg/

https://www.ipinfusion.com/products/csr-dcsg/



Test Book and Results

Enhanced RFC2544 Benchmarking Methodology for Network

Interconnect Devices

Goals of Test: Verify the system under test (SUT) performance following the methology

of the RFC2544 to evaluate on Ethernet: Throughput, Latency, Jitter, Packet Loss and

Back to Back. Important note: The encapsulation, protocol overhead and the

subscription of egress port are taken into account for the test with Layer 3 (TC1.3 and

TC2.3) for small frame sizes. Ingress config rate was max of 80Mbps, all above rates was removed from the report.

Methodology: Packets are sent from one or more VIAVI-MTS source port, through the

SUT, to the tester’s destination port. The destination is used as loopback mode. If packet

loss occurs, the offered load is reduced and the test is repeated unti achieve the maximum throughput Suggested frame sizes (bytes) for Ethernet testing:

- 66, 128, 256, 512, 1024, 1280, 1518, 9216

At least five frame sizes SHOULD be tested for each test condition

With the maximum Throughput determined its measured the latency in RTT (round-

trip-time), measured the Jitter, measured packet loss for each rate configured and its

measured the total amount and if the buffer’s SUT can handle a burst test.

Test procedure:

1. Create a traffic and the stream profile

2. In case of IP, configure the ARP mode

3. Configure 60 second of test for each frame size

4. Select frame size

5. Generate a loopback on the remote side.

6. Start the traffic 7. Collect the results for each frame size

Variable:

▪ Packet Size. The frame sizes for different Layer-2 and packet sizes should be

used: 64, 128, 256, 512, 1024, 1280, 1518 and 9216 Bytes

▪ Throughput resolution

▪ Test duration

▪ Maximum acceptable packet loss, Maximum acceptable latency, Maximum acceptable Jitter, Packet Loss, Burst Size and Packet Rate

Result expected

▪ The result is achieve the throughput configured in the SUT without errors

▪ The result is achieve the latency in the SUT that reflect the distance of the link

▪ The result is achieve the Jitter in the SUT that reflect the distance of the link

▪ The result is number of packet loss 0% when the rate is below or the same as

specify on the Throughput test

https://tools.ietf.org/html/rfc2544



Configuration summary

CASSINI A - Interfaces CASSINI B- Interfaces Software version: EC_AS7716-24SC-OcNOS-1.0.1.165a-OTN_IPBASE-S0-P0 05/28/2020 18:47:07

…

#Optical Configurations

coherent-module 6

enable

network-interface 0

tx-output-power 0.00

tx-laser-freq 192500000000000Hz

modulation-format dp-8-qam

exit

…

#Ethernet Configurations

hostname CASSINI-1

…

bridge 1 protocol rstp vlan-bridge

…

vlan database

vlan 100 bridge 1 state enable


…

interface ce1/1

description DCSG-1

fec on

switchport

bridge-group 1 spanning-tree disable

switchport mode trunk

switchport trunk allowed vlan add 500

load-interval 30

mtu 9216

…

interface ce3/1

description MTS8000_1

switchport




load-interval 30

mtu 9216

!

interface eth0

ip vrf forwarding management

ip address 177.125.143.148/27

Software version: EC_AS7716-24SC-OcNOS-1.0.1.165a-OTN_IPBASE-S0-P0 05/28/2020 18:47:07

…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-2

…


…

vlan database



…

interface ce1/1

description DCSG-2

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.149/27

CASSINI A – Status CASSINI B – Status CASSINI-1#sh coherent-module 6

---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready

Vendor-name : LUMENTUM

Vendor-SN : VCD20220009

Vendor-FW-Version : 1.7

Network-Interfaces : 1

Host-Interfaces : 2

CFP2 Vendor-name : LUMENTUM

CFP2 Vendor-OUI : 0x19C

CFP2 Vendor-Part : TRB200DAA-01

CFP2 Vendor-SN : VCD20220009

CFP2 Vendor-FW-Version : 1.7

CFP2 Temperature : 47.68 °C

CFP2 Power Supply : 3.340 V

---------------------------------------------------------------

SLOT-ID : 6 NETIF : 0

---------------------------------------------------------------

OperStatus : ready

DSP-OperStatus : ready

Modulation-format : dp-8-qam

Differential Encoding : FALSE

Pulseshaping-Rx :

Pulseshaping-Tx : FALSE

Loopback-type : none

PRBS-type : none

Losi-Enabled :

PRBS-IN-SYNC : FALSE

CASSINI-2#sh coherent-module 6

---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :


Tput Latency

Packet

Jitter

Frame

Loss

Burst

Hunt

MTS8000 CASSINI A <=> CASSINI B 100000 PASS PASS PASS PASS PASS

MTS5800 DCSG A <=> CASSINI A <=> CASSINI B <=> DCSG B 100000 NA NA NA NA NATC1.1 - Layer 2 8QAM 20.5 dB 4,20E-03

Estimated

OSNR Rx

1.50 dB

Q-Margin

RFC2544

SUTT-BERTTest Case

Mod

Format

DCO Link

Data

rate

(Mbps)

Pre FEC BER



Current PRBS BER : nan

Current BER Period : 1000

Current PRE FEC BER : 3.397117e-04

Current POST FEC BER :

Current Chromatic Dispersion : 5

Current Differential Group Delay : 10

Tx-Disable : FALSE

TX-Output-Power : 0.00 dBm

TX-Laser-freq : 192500000.000000 MHz

Min-LaserFreq : 191150000.000000 MHz

Max-LaserFreq : 196100000.000000 MHz

Current TX Laser Freq : 192500000.000000 MHz

Grid-Spacing : 6.25-ghz

Laser-Grid : 100-ghz 50-ghz 25-ghz 12.5-ghz 6.25-ghz

Current Output Power : -0.05 dBm

Current Input Power : -2.56 dBm

Current Post VOA Power :

Current Prov~ Chnl Power : -1.99 dBm

Current Post VOA Prov~ Chnl Power : -1.70 dBm

Current OSNR Estimate : 26.00 dB

Current Q-Margin : 3.70 dB

Current Uncorrected Block-count : 0

Alarms :

---------------------------------------------------------------

SLOT-ID : 6 HOSTIF : 0

---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-1#





Current Chromatic Dispersion : -14773


Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-2#

DCSG A - Interfaces DCSG B - Iterfaces Software version: EC_AS7316-26XB-OcNOS-4.0-SP-CSR-S0-P0 09/23/2020 08:44:03

!

…

!

interface ce0

description description to_cassini1-ce1/1

fec on

switchport




load-interval 30

mtu 9216

!

interface ce1

description to_MTS5800_Dual_Port1

switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.151/27

end

Software version: EC_AS7316-26XB-OcNOS-4.0-SP-CSR-S0-P0 09/23/2020 08:44:03

!

…

!

interface ce0

description to_Cassini-2-ce1/1

fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.150/27

end

Results





…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-1

…


…

vlan database



…

interface ce1/1

description DCSG-1

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.148/27


…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-2

…


…

vlan database



…

interface ce1/1

description DCSG-2

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.149/27


---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :



---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :


Tput Latency

Packet

Jitter

Frame

Loss

Burst

Hunt

MTS8000 CASSINI A <=> CASSINI B 100000 NA NA NA NA NA

MTS5800 DCSG A <=> CASSINI A <=> CASSINI B <=> DCSG B 100000 PASS PASS PASS PASS PASS

Estimated

OSNR Rx

4,20E-0320.5 dB8QAM

Q-Margin

1.50 dBTC1.2 - Layer 2

RFC2544

SUTT-BERTTest Case

Mod

Format

DCO Link

Data

rate

(Mbps)

Pre FEC BER









Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-1#







Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-2#


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.151/27

end


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.150/27

end

Results





…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-1

…


…

vlan database



…

interface ce1/1

description DCSG-1

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.148/27


…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-2

…


…

vlan database



…

interface ce1/1

description DCSG-2

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.149/27


---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :


---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :

Tput Latency

Packet

Jitter

Frame

Loss

Burst

Hunt

MTS8000 CASSINI A <=> CASSINI B 8QAM 100000 NA NA NA NA NA

MTS5800 DCSG A <=> CASSINI A <=> CASSINI B <=> DCSG B 8QAM 100000 PASS PASS PASS PASS PASSTC1.3 - Layer 3

Mod

Format

DCO Link

Data

rate

(Mbps)

Pre FEC BER

RFC2544

SUTT-BERTTest Case

4.20E-031.50 dB20.5 dB

Estimated

OSNR RxQ-Margin










Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-1#








Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-2#


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.151/27

end


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.150/27

end

Results





…


coherent-module 6

enable

network-interface 0



modulation-format dp-qpsk

exit

…


hostname CASSINI-1

…


…

vlan database



…

interface ce1/1

description DCSG-1

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.148/27


…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-2

…


…

vlan database



…

interface ce1/1

description DCSG-2

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.149/27


---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready


Modulation-format : dp-qpsk


Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :



---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :


Tput Latency

Packet

Jitter

Frame

Loss

Burst

Hunt

TC2.1 - Layer 2 MTS8000 CASSINI A <=> CASSINI B QPSK 17.00 dB 4.10 dB 100000 2,10E-04 PASS PASS PASS PASS PASS

Estimated

OSNR RxQ-Margin

RFC2544

SUTT-BERTTest Case

Mod

Format

DCO Link

Data

rate

(Mbps)

Pre FEC BER









Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz






Current Output Power : 0.06 dBm








Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-1#







Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-2#


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.151/27

end


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.150/27

end

Results





…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-1

…


…

vlan database



…

interface ce1/1

description DCSG-1

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.148/27


…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-2

…


…

vlan database



…

interface ce1/1

description DCSG-2

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.149/27


---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :



---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :


Tput Latency

Packet

Jitter

Frame

Loss

Burst

Hunt

TC2.2 - Layer 2 MTS5800 DCSG A <=> CASSINI A <=> CASSINI B <=> DCSG B QPSK 17.00 dB 4.10 dB 100000 2,10E-04 PASS PASS PASS PASS PASS

Estimated

OSNR RxQ-Margin

RFC2544

SUTT-BERTTest Case

Mod

Format

DCO Link

Data

rate

(Mbps)

Pre FEC BER









Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-1#







Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-2#


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.151/27

end


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.150/27

end

Results





…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-1

…


…

vlan database



…

interface ce1/1

description DCSG-1

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.148/27


…


coherent-module 6

enable

network-interface 0




exit

…


hostname CASSINI-2

…


…

vlan database



…

interface ce1/1

description DCSG-2

fec on

switchport




load-interval 30

mtu 9216

…

interface ce3/1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.149/27


---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :



---------------------------------------------------------------

SLOT-ID : 6

---------------------------------------------------------------

Module Type : DCO

Admin-Status : UP

Oper-Status : Ready





Host-Interfaces : 2








---------------------------------------------------------------


---------------------------------------------------------------

OperStatus : ready




Pulseshaping-Rx :



PRBS-type : none

Losi-Enabled :


Tput Latency

Packet

Jitter

Frame

Loss

Burst

Hunt

TC2.3 - Layer 3 MTS5800 DCSG A <=> CASSINI A <=> CASSINI B <=> DCSG B QPSK 17.00 dB 4.10 dB 100000 2.10E-04 PASS PASS PASS PASS PASS

Mod

Format

DCO Link

Data

rate

(Mbps)

Pre FEC BER

RFC2544

SUTT-BERTTest CaseEstimated

OSNR RxQ-Margin









Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-1#







Tx-Disable : FALSE


TX-Laser-freq : 192500000.000000 MHz














Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

---------------------------------------------------------------


---------------------------------------------------------------

Fec-type : rs


Alarms :

CASSINI-2#


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.151/27

end


!

…

!

interface ce0


fec on

switchport




load-interval 30

mtu 9216

!

interface ce1


switchport




load-interval 30

mtu 9216

!

interface eth0


ip address 177.125.143.150/27

end

Results



Quality of Service on VLAN Priorities

Reference:

Goals of Test: The objective of the test is develop methods of testing aspects of QoS and

investigating the behavior of devices when subjected to testing. To develop the methods

to identify the performance metrics that are most important from the QoS.

Methodology: Different services and Packets are being created in VIAVI-MTS source

port with different priorities for L2 (VLAN priority) and send through the SUT, to the

tester’s destination port. The test measure the ability to priorize different services

individually and the impact when they have been generated togheter at the same time.

Test procedure:

1. Create 4 multiples stream profile

2. Create and set up Priority for each one using VLAN Priority

3. Set priority:

o Stream 1 – TOS 111000




4. Configure 120 second of test for each Services

5. Select frame size

6. Generate traffic

7. Start the traffic statistic and check if the SUT is doing the priorization correctly

8. Collect the throughput, latency, jitter, packet loss result for each service configured

Variable:

▪ The streams have same frame sizes for Layer-2 and packet sizes used is 1522

Bytes

▪ Rate limit configured to 10Gbps with load above of the limit to force the frame

loss for low priority streams.

▪ Throughput for each services

▪ Number of Streams

▪ VLAN Priorities

Result expected

The result is achieve the throughput configured in the DUT/SUT without errors for higher order priority streams



Result

QoS Test in 800km

When the total throughput exceeds the data rate limit, the lower order quality streams cannot

achieve the configured rate and is possible to observe Packet Error and Frame Loss on these

streams.

QoS Test in 2000km

When the total throughput exceeds the data rate limit, the lower order quality streams cannot

achieve the configured rate and is possible to observe Packet Error and Frame Loss on these

streams.

*Additional information can be found in the attachments in the QoS exported report/logs.

Stream 1 Stream 2 Stream 3 Stream 4 Total Mbps Stream 1 Stream 2 Stream 3 Stream 4 Total Mbps

Rx Mbps Cur L1 4900 2900 400 1400 9600 4900 2900 204 1920 9924

Rx Mbps Cur L2 4889 2894 399 1397 9579 4889 2894 203 1916 9902

Tx Mbps Cur L1 5000 2900 400 1400 9700 5000 2900 400 2200 10500

Tx Mbps Cur L2 4989 2894 399 1397 9679 4989 2894 399 2195 10477

One Way Delay (us), Average 16.411 16.956 17.057 17.053 16.412 16.960 17.053 17.052

One Way Delay (us), Minimum 15.412 16.092 16.252 16.262 15.112 15.542 16.282 16.222

One Way Delay (us), Maximum 18.082 18.932 18.692 19.122 17.582 18.342 19.102 19.272

Packet Jitter (us), Average 0.250 0.110 0.390 0.300 0.160 0.100 0.580 0.170

Packet Jitter (us), Peak 2.210 2.140 1.810 2.250 1.820 1.530 2.220 2.360

TOS 111000 110000 001000 000000 111000 110000 001000 000000

Packet Error Rate 0 0 0 0 0 0 40,50% 13,80%

Frame Loss Ratio 0 0 0 0 0 0 40,50% 13,70%

Below Data rate limit - 10Gbps Above Data rate limit - 10GbpsResults

Stream 1 Stream 2 Stream 3 Stream 4 Total Mbps Stream 1 Stream 2 Stream 3 Stream 4 Total Mbps

Rx Mbps Cur L1 4900 2900 400 1500 9700 4900 2900 216 1907 9924

Rx Mbps Cur L2 4889 2894 399 1497 9679 4889 2894 216 1903 9902

Tx Mbps Cur L1 5000 2900 400 1500 9800 4900 2900 400 2200 10400

Tx Mbps Cur L2 4889 2894 399 1497 9679 4889 2894 399 2195 10378

One Way Delay (us), Average 20.295 21.118 20.865 20.857 20.143 20.741 20.847 20.831

One Way Delay (us), Minimum 19.462 19.832 19.992 19.962 18.912 19.872 20.242 20.032

One Way Delay (us), Maximum 21.602 22.782 23.412 23.402 21.342 22.112 22.812 23.032

Packet Jitter (us), Average 0.200 0.080 0.040 0.280 0.230 0.160 0.070 0.150

Packet Jitter (us), Peak 1.720 2.120 2.800 2.800 1.890 1.520 2.240 2.330

TOS 111000 110000 001000 000000 111000 110000 001000 000000

Packet Error Rate 0 0 0 0 0 0 41,90% 14,00%

Frame Loss Ratio 0 0 0 0 0 0 41,80% 14,00%

ResultsBelow Data rate limit - 10Gbps Above Data rate limit - 10Gbps



24h Stability Test and KPIs

Goals of Test: Verify if the the System under test (SUT) can perform stable operation

during ~24h and collect performance KPIs.

Methodology: Flow traffic in the SUT during ~24 hours and collect KPIs to demonstrate

that the equipments can sustain stress test for a day.

Test procedure:

1. Create multiples control plane frames

2. Configure Protocol to transmit

3. Configure frame size 1522 Bytes to transmit

4. Start the test and collect logs

Result expected

The result is the KPIs at acceptable level of performance

Result

0.210KPIs - ~24 Hour test Unit

TC1 (800km) TC2 (2000km)

MTS8000 MTS5800 MTS8000 MTS5800

Port 1 Port 1 Port 2 Port 1 Port 1 Port 2

Throughput, Current, Rx L1 Mbps 99,996 99,996 99,996 99,996 99,996 99,996

Throughput, Current, Tx L1 Mbps 99,996 99,996 99,996 99,996 99,996 99,996

Throughput, Current, Rx L2 Mbps 98,699 98,699 98,699 98,699 98,699 98,699

Throughput, Current, Tx L2 Mbps 98,699 98,699 98,699 98,699 98,699 98,699

Frame Loss - FLR, Lost Frames # 0 0 0 0 0 0

Frame Loss - FLR, Frame Loss Ratio % 0 0 0 0 0 0

Packet Jitter - FDV (us), Average us 0 0 0 0 0 0

Packet Jitter - FDV (us), Max Average us 0 0.020 0.020 0 6 6

Packet Jitter - FDV (us), Peak us 0.05 0.210 0.220 0.05 99 99

Packet Jitter - FDV (us), Instantaneous us 0 0.020 0.010 0.01 0.02 0.01

Additional information can be found in the attachments in the Stability exported

report/logs.



Optical Measurements

Goals of Test: Verify the optical carachteristics of the equipment compared to a

commercial Padtec transponder. Note that the CFP2-DCO in the Cassini was not tunned or adjusted for a specific deployment scenario as recommended.

Methodology: vary the OSNR through the variation of power at the entrance of the system, effectively reducing the OSNR after the transit through the Amplifiers..

Test procedure:

1. Align the optical layer in the Cassini and in the baseline transponder

2. Reduce the ingress power and collect measurements in the OSA and in the

management system

Result expected

Verify similar levels of OSNR performance in the OSA and in the equipment

Result

Link Distance: 1000 km

Link Distance: 2000 km

Note: No further tuning and re-testing was considered but according to the CFP2-DCO provider, some improvements can be obtained according to parameters tunning and real deployment scenarios. The baseline transponder was from the same provider of the optical layer.

0

5

10

15

20

25

15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0

REFERENCE OSNR

OSNR Reference x OSNR Estimate (dB)

CASSINI - OSNR OSA (dB) CASSINI - OSNR Estimate (dB)

BASELINE - OSNR OSA (dB) BASELINE - OSNR Estimate (dB)

0.000E+00

5.000E-03

1.000E-02

1.500E-02

2.000E-02

2.500E-02

15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00

ESTIMATED OSNR

Estimated OSNR (dB) x BER Pre-FEC

CASSINI C25 TM200G C28

0

5

10

15

20

25

10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0

REFERENCE OSNR

OSNR Reference X OSNR Estimate (dB)

CASSINI - OSNR OSA (dB) CASSINI - OSNR Estimate (dB)

BASELINE - OSNR OSA (dB) BASELINE - OSNR Estimate (dB)

0.000E+00

5.000E-03

1.000E-02

1.500E-02

2.000E-02

2.500E-02

10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00

ESTIMATED OSNR

Estimated OSNR (dB) x BER Pre-FEC

CASSINI C25 BASELINE C28



Conclusions We successfully demonstrated the use of the DCSG and CASSINI solution as a layer 2/3 aggregator

in long-distance applications, using coherent DWDM alien wavelengths enabled by the TIP-TAI

(Transponder Abstraction Interface) over a commercial optical layer from Padtec, including

verified error-free transmission across different operating ranges, two different modulation

formats, and two thousand kilometers distance without regeneration over the hybrid amplifiers

of Padtec.

Few take aways that was possible to observe:

• The system under test delivered the expected performance in terms of line rate and

capabilities using the CFP2-DCO over the different proposed use cases (E-Metro and

Long-haul), although a large number of features have not been validated. Next validations

we hope it can be based on service provider use cases (e.g. MNOs, ISPs, transit companies,

data center interconnection, etc).

• CASSINI is a hybrid L3 / L2 switch that collapses and aggregates traffic from different

100GbE ports into a single optical alien wavelength coherent DWDM, maintaining traffic

priorities and accessing the optical layer from a single box with a modular architecture,

what enables a pay-as-you-grow expansion option.

• Further tuning in the DCO link parameterization can improve the optical performance.

Ideal scenario would take deployed optical layer aspects and engineering support from

the CFP2-DCO provider. In the case of this demo, Lumentum.

▪ During the configuration one issue found was the chromatic dispersion tuning in the

CFP2-DCO. The procedure was performed using direct register calls which is not the ideal

interface or method for end-customer. A suggestion to improve the optical configurations

using the OcNOS script is recommended, including some current existing parameters as

command instead of changing registers via TAI.

The DCSG solution and CASSINI has a broader options of applications and features available,

future work could potentially focus on disaggregation, hardware and software multivendor

scenarios, Syncronims applications, and an Open Management Interface to monitor and configure

the entire system through the network elements APIs.

As the next step, the showroom at the CPQD TIP Community Lab will be available for validating

use cases, test case scenarios from service providers, and opened for visitors and TIP partners.



Abbreviations

ACO Analog Coherent Optics

APIs Application Programming Interface

BER Bit Error Rate

CFP2 C Form-factor Pluggable

DCO Digital Coherent Optics

DCSG Disaggregated Cell Site Gateway

DCSG Distributed Cell Site Gateway

DWDM Dense Wavelength Division Multiplexing

OOPT Open Optical & Packet Transport

OSA optical spectrum analyzer

OSNR optical signal noise ratio

QAM Quadrature Amplitude Modulation

QoS Quality of Service

QPSK Quadrature Phase Shift Keying

QSFP Quad small form-factor pluggable

SFP small form-factor pluggable

SUT System Under Test

TIP Telecom infra project

VLAN Virtual Local Area Network



Attachments

1. High level network design

Network HLD.pdf

2. Equipments Datasheet

Edgecore.zip

Padtec.zip

3. RFC2544 – Configs and Test Report

RFC2544 Test - NEs

Config.zip

RFC2544 Test

Report.zip

4. QoS on VLAN Priorities – Configs and Test Report

QoS Test - NEs

Config.zip

QoS VLAN Priorities

Test Report.zip

5. Stability ~24Hours – Configs and Test Report

Stability Test - NEs

Config.zip

Stability Test

Report.zip

https://brandfolder.com/s/jnnm5mvwjx5bqw8mn3j8t8n

https://brandfolder.com/s/mthg774ckwj35bnfp45zjb

https://brandfolder.com/s/xgmjrq94qhvq8hfprrj53g4z

https://brandfolder.com/s/xgmjrq94qhvq8hfprrj53g4z

https://brandfolder.com/s/qhqnjkf8jjwftpg5s92btf98

https://brandfolder.com/s/g7nhs7pqk96gxkcrxxjsv8n

https://brandfolder.com/s/g7nhs7pqk96gxkcrxxjsv8n

https://brandfolder.com/s/hjj5bvb84ghf9cwtf4w9htj

https://brandfolder.com/s/rpms7v4fqx6k4mmpjcrxcvt

https://brandfolder.com/s/rpms7v4fqx6k4mmpjcrxcvt

https://brandfolder.com/s/qh72jbfkt6bsc97rhhxh8

https://brandfolder.com/s/sppc35w4gg6pckfbpmx5qrqj

https://brandfolder.com/s/sppc35w4gg6pckfbpmx5qrqj



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