Project TA1-T10

TA1-T10 New Optimisation Polish Telecom Network

ACTS Project BBL AC038(BroadBandLoop)

ACTS Project BTI AC362(Broadband Trial Integration)

IST Project LION IST-1999-11387(Layers Interworking in Optical Networks)

presented byJanusz Maliszewski

Telekomunikacja Polska S.A.Tel. (+48 22) 6571 377 Fax (+48 22) 6960 520

e-mail: [email protected]

Project TA1-T10

Project Data – Project ending date: 1995

TA1-T10 main goal

• The goal was to define new optimised developing plans for Polish telecommunications network.

Project BBL

BBL Project Data – Project ending date: June 1999

BBL main goal• Define and test in three field trials a concept for a cost

effective broadband access network which will allow fibre to migrate gracefully into the local loop as bandwidth demand increases.

• The concept was build on the existing coax and copper twisted pair infrastructure for the last drop when economical feasible.

Project BBL

BBL main goal• The project was devote a major effort to define and build

an optical access network with the following characteristics: cost effective, compact, low power consumption, modular extendible bandwidth up to 1 Gbit/s (155Mbit/s+16x52Mbit/s) downstream and 576Mbit/s (16x10Mbit/s + 8x52Mbit/s), flexibility in bandwidth allocation, high transmission quality and robustness towards outside plant performance. The network was provide transparency for both existing narrowband services and future ATM based broadband services.

Project BBL

BBL main goal• Field trial with real users and a range of broadband services

were use to evaluate the network concept. System performance were measure over an operational period of one year.

• The Life Cycle Cost (LCC) estimations were guide the technical work in the project and were applied to evaluate competitiveness between different drop solutions (copper twisted pair, coax, fibre, radio). LCC studies were supported by traffic studies leading to estimation of bandwidth demand and influence on the bandwidth demand by optimal location of ATM switching in the network.

Project BTI

BTI Project Data – Project ending date: December 1999

BTI main goal

• In order to meet requirements for improved quality of Internet Services the project has developed and demonstrated a concept for improved Quality of Services (QoS) based on integration of IP and ATM. The focus of the work has been on an ATM based Passive Optical Network (APON).

Project BTI

BTI main goal• The network concept is supporting unicast and multicast

with well-defined QoS control in terms of controlled load - and guaranteed service. The QoS controlled network is based on IPv6, RSVP, PIM, NHRP and ATM with point to point and point to multipoint SVCs. Each of these technologies have a role in increasing network performance, lower cost and providing a well defined network service quality for the end user.

Project BTI

BTI main goal• The technical performance of the network has been

measured in order to evaluate the viability of the concept.

• A program of structured usability testing has been performed to evaluate the user perception of the QoS control and the user interface. For this purpose user applications for distance learning were enhanced with QoS network control via RSVP and ATM signalling.

• Students and teachers at universities and schools in Denmark, Poland, and Portugal have been connected to a trial network.

IST Project LION

• LION main goal

„The goal is to design and test a resilient and managed transport network realised by an Optical Transport Network (OTN) carrying different clients (e.g. SDH, ATM, IP-based) with interworking and interconnection between layer networks and domains. ”

LION Project Data– Project starting date: January 2000– Project duration: 36 months– Project total costs: 10,690,000 Euro

– EC contribution: 5,500,000 Euro

LION Consortium• Telecom Italia LAB (CSELT) - Prime Contractor - (I)• Cisco Systems International B.V. - (NL)• T-Nova - DTAG (D)• Interuniversity Microelectronics Center (IMEC) - (B)• Siemens München (SICN) - (D)• Nippon Telegraph Telephone Co. (NTT) - (JP)• National Technical University of Athens (NTUA) - (EL)• Optical Technology Center (OTC- Agilent) - (I)• Sirti - (I)• The University of Mining and Metallurgy (AGH) - (PL)• Telekomunikacja Polska (TP SA) - (PL)• Universitat Politecnica de Catalunya (UPC) - (E)

LION Objectives

• Definition of the network and business models for a client-independent OTN evolving to data-centric automatic solutions (e.g. ASON, G-MPLS)

• Identification of strategies for integrated resilience in a multi-layers network (IP over WDM\OTN)

• Design and implementation of UNI and NNI interfaces based on the Digital Wrapper technology

• Design and implementation of two interworking Network Managers in CORBA and WBEM technologies

• Cost evaluation of IP over DWDM\OTN case studies

• Experiments in a Optical Internetworking test-bed

LION Project Structure

• WP0 - Project Management (CSELT)• WPG1 - Network Studies (IMEC)

– WP1 - Network Scenarios and Requirements (AGH)– WP2 - Resilience (IMEC)– WP3 - Planning and Evaluation (Sirti)

• WPG2 - Interface and Management (T-Nova)– WP4 - Interfaces and OAM (NTUA)– WP5 - Management (T-Nova)

• WPG3 - Test Bed (CSELT)– WP6 - Implementation and Integration (CSELT)– WP7 - Definition and Assessments ( CSELT)

Involvement of TPSA in LION Project

• WPG1 – Network Studies– WP1 – Network Scenarios and Requirements, WP Partner– WP2 – Resilience, WP Partner– WP3 – Planning and Evaluation, WP Partner

Network Requirements:• Client independent transport network

• Scalability

• Policy management

• Efficient and cost-effective resilience

• Automatic end-to-end provisioning

• Fast and efficient routing

• Policy-based traffic engineering for QoS

• Support of Optical Virtual Private Networks

LION WPG1WP1 Network Scenarios and Requirements

OTN (WDM)

SDH

ATM, IP, voice

GbE, DPT SDH*

POSSDH*

IP (MPLS)

DW DW

DW = Digital Wrapper SDH* = SDH framing


LION Roadmap


LION WPG1WP2 Resilience

•To study coordinated resilience strategies in multilayer and multidomain networks

•Provide inputs to WPG2 on impact of integrated resilience on network management and OA&M

•Provide inputs to WPG3 on definition and implementation of resilience strategies in the LION testbed

• Mapping of the overall network requirements into the individual layers, considering the selected recovery mechanisms, the layer architectures and the capacity requirements

• Definition of coherent and integrated methodologies in order to use the planning tools, as available by each partners

• Definition of guidelines to be followed by the operators in planning multi-layer network minimizing costs but still guaranteeing a defined degree of survivability.

LION WPG1WP3 Planning and Evaluation

OTN (WDM)

SDH

ATM, IP, voice

GbE, DPT SDH*

POSSDH*

IP (MPLS)

DW DW

WP2:Resilience

WP3: Planning and evaluation

Single layerSurvivability capabilities

of each technology

Failure scenarios

Multi layer

Interworking strategies:• hold-off timer• recovery token

SIREN-Plan

IP Net Planner

TCP/IP/(MPLS)DPT SRP-fa IPS

WDMNetDesign

WDMRing

OTN (WDM)

SDH

ATM, IP, voice

GbE, DPT SDH*

POSSDH*

IP (MPLS)

DW DW

Case studies definition

CCN Optimiser

WPG2 -WP4: Architectures and interfaces

D11: Functional requirements for interfaces

Network Functionality for Layers Inter-Working

LION Roadmap

WP1: Network scenarios and requirements

LION WPG1 – Summary

LION WPG2WP4 Interfaces and OAM

• Definition of the interfaces requirements of an advanced optical transport network (for example an ASON) that is server to carry different client transport networks with interworking functionality between layers.

• Functionality description and specification of the UNI and NNI interfaces for the LION testbed.


IP

LSP

OCh

physical

IP/MPLSControlPlane

IP

LSP

OCh

physical

IP/MPLSControlPlane

IP

LSP

OCh

physical

IP/MPLSControlPlane

• a single routing protocol instance runs over both the IP/MPLS and the optical domains• common addressing scheme will be used for the optical- and IP networks• Problem: Integration of Non - IP Clients

Control Plane: Peer Model


Control Plane: Overlay Model

transport network provides point to point connection to the client domain routing protocols, topology distribution, and signalling protocols

controlplanes are completely independent static overlay model (manual configuration or configuration by management ) signalled overlay model (ODSI, g.ason, OIF UNI1.0)

simple integration of non-IP clients

IP

LSP

physical

IP

LSP

ControlPlane

physical

OChControlPlane

OChControlPlane

OChControlPlane

„routing peers“

p. to p. connection served by OTN

„routing

peers“

„routing

peers“

Interworking Primitives• Connect• Disconnect• Switch• Bridge• Alarm• ...

ControlPlane

LION WPG2WP5 Management

• To study the inter-working of management systems in a heterogeneous management environment.

• To define the management functions related to ASONS and to support them with an appropriate Network Level information model.

• To develop an efficient architecture for the umbrella management system for heterogeneous environments enabling an end-to-end view on network level resources in the server network and in the client network.

• To implement the umbrella management system and the network element agents

LION WPG2WP5 Management

NEL-OS

NE

NE

NE

NENE

NEL-OS

NE

NE

NE

NENE

NL-OS

SN SN

NL-OS

SN SN

NESN

SN

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

NE

NL-IF NL-IF

CMIPSNMP

CLI

SN: SubnetworkNE: Network Element

logical Resource (object) physical Resource

T-Nova Domain

CSELT Domain

LION WPG3WP6 Implementation and Integration

GSR5

GSR1

GSR2GSR3

OADM1

GSR4

OADM3 OADM2

Accessnetwork

ADM16

ADM16

ADM16

OXC2OXC3

OXC1

GbE

nxPOS-1

POS-16

STM-16

8x10/100

2R transponder

3R transponder

3R regenerator

S

SGbE Cl

host

S

SGbE

Clhost

Testbed configuration: OXC2 and OXC3 are ASON prototypes from Siemens

LION WPG3WP7 Definition and Assessment

•To identify testbed configurations and experiments

•To perform testbed subsystems tests (e.g. interoperability tests among application sources, IP-routers, SDH and OTN equipment) including management systems

•To validate interworking functionality (optical channel set-up driven by IP GSR UNI signalling

Documents

Project TA1-T10