The WI-PIE Program. Backbone Technical description

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1 The WI-PIE Program Backbone Technical description Turin 19 mar 2010 Davide La Valle Architecture and Network design group Infrastructural Services Division

2 Agenda Regional Backbone Transport Technology DWDM SDH RPR Optical Backbone Top-IX RUPAR SDH bandwidth allocation MPLS Model Domain Model Wi-Pie PA Node Architecture Backbone evolution

3 Regional Backbone Regional-spread fibre optic backbone for: Internet Exchange Innovation and Technological transfer RUPAR Evolution Links strategic points on Piedmont Territory: 11 nodes About 1000 km of fibre-optic Official Start November 2006

4 DWDM Technology Light splitting inside fibre optic in distinct frequencies (colors or lambda λ) Each color is a 2,5 or 10 Gb circuit By link-aggregation we can grow capacity on the fibre (scalability) It allows to transmit over long distance DWDM Fibre optic DWDM λ1 λ2 Single Fibre (different λ ) λ n

5 SDH Technology Allows to aggregate on logical circuits with different speed and features (multiple of 155 Mb on a single link) Max aggregation capacity: 10 Gb Allows to reach long distance (with amplifiers) Reliability (recovery in less than 50 ms.) ATM Fibre optic or lambda WDM GbEth Fast Ethernet Frame Relay

6 RPR Technology RPR (Resilient Packet Ring) defines a Layer 2 protocol for multiservice networks with ring topologies. Features: Ring Bandwidth: 2,5 Gb Physic level independent (Ethernet, SDH, WDM) Ring protection < 50 ms Provides Traffic Management and QoS Multicast enabled natively bandwidth optimization

7 Optical Backbone (λ) VB SDH 2.5Gb on WDM + 1 lambda 10 Gb PDI IVR SDH 2.5Gb on WDM + 1 lambda 10 Gb PDI ENVI BI VC NO MI CSI SDH 2.5Gb on WDM + 1 lambda 10 Gb PDI CN AT 1 lambda SDH 10Gb for PA and TOP-IX 1 lambda 10 Gb PDI TOP-IX 1 lambda 10Gb Education 1 lambda 10Gb TOP-IX TO-MI AL

8 TOP-IX (EXCHANGE) Logical c/o Fastweb TORINO PdF TORINO Torino 1 CSI-Piemonte Torino 2 Environment Park Cuneo Asti Alessandria Milano Verbania Novara Vercelli Biella Ivrea

9 TOP-IX Innovation Platform Ivrea Verbania 10 GigaEth 10 GigaEth Biella Vercelli Novara TO1 TO2 10 Gbps Ethernet Ring on DWDM Milano 10 GigaEth Asti Alessandria Cuneo

10 RUPAR Piemonte Distributed architecture RUPAR: Regional PA Network Verbania Ivrea ~ 1 Gbps ~ 1 Gbps Biella Vercelli Novara CSI RPR Ring 2,5 Gbps + point-to-point SDH ~ 1 Gbps Asti Alessandria Cuneo

11 λ 1 : SDH Bandwidth allocation TOPIX Network (Exchange) 622 Mbit/s links from: Biella, Vercelli, Novara, Verbania, Alessandria, Asti, Ivrea, Cuneo (4 VC4) to TO1 and TO2 Dual 10 Gbit/s link from Milano (1 lambda) to TO1 PA Network RPR ring with 1,240 Gbit/s per direction (est+west) Point-to-point Mbit/s from Ivrea, Cuneo to TO1 Point-to-point Mbit/s from Novara, Alessandria, Biella, Vercelli, Asti to TO1 Double Mbit/s fom Verbania to TO1

12 MPLS Technology Allows to create virtual networks, logically separated, to deliver services to Public Administration bodies. Body 1 Body 2 Body n VRF 1 VRF 2 VRF n IP MPLS RPR / SDH DWDM

13 Domain model (1) xdsl PA Node PA Node MAN Internet Data Center MPLS PA Node CSI PA Node MAN VPN MPLS MAN Interconnection already done (Novara, Biella, Vercelli, Cuneo) MAN Asti w.i.p. xdsl PA Body Domain

14 Sedi PA Domain model (2) Sedi PA Telecom Italia Wind Ivrea Verbania Biella Vercelli Novara BGPv4 CSI-Piemonte Asti CISCO 6506 Alessandria Interfaccia ottica GEth, Connettori SC o LC xdsl at provincial level (by area) to collect local PA bodies Cuneo Telecom Italia Sedi PA

15 Domain model: some numbers (as today) Total links: 705 Links directly financed by PA bodies: 170 Links financed by Piedmont Region: 535 (from different Tenders) xdsl Access 84 with bandwidth of 4Mbps (21 w/ backup) 224 with bandwidth of 2Mbps (17 w/ backup) 73 with bandwidth of 1Mbps 220 with bandwidth of 512Kbps (2 w/ backup) 28 with bandwidth of 256 Kbps 2 with bandwidth of 128 Kbps MetroEthernet Access 44 with bandwidth of Ethernet 10Mbps 24 with bandwidth of Ethernet 20Mbps 4 with bandwidth of Ethernet 100Mbps 2 with bandwidth of Ethernet 1Gbps

16 Wi-Pie PA Node Architecture Provincial Wi-Pie Node xdsl Provider Router VLAN/VRF MPLS router (P/PE node) GbEth GbEth Optical node (ONS 15454) SDH PtP RPR Ring DWDM MAN ME Aggregation Metro Eth Academic/PA/other

17 Wi-Pie: Backbone evolution in 2008/ lambda for Academic/Education/University Link Redundancy for Ivrea DR in Vercelli Link ME using SL3 (Strategic lines) Wi-Pie: Backbone evolution still in progress Link Redundancy for Cuneo DR/BC Scalability for ME

18 Questions? Turin 19 mar 2010 Davide La Valle Architecture and Network design group Infrastructural Services Division

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