1 Lambda Networking in TWAREN New Architecture Design 2006 / 01 / 25 NCHC, Taiwan

2 TWAREN New Architecture TWAREN is the only national academic and research backbone in Taiwan that provides layer one optical lightpaths and layer three routing and peerings. The lease of circuit is going to be due in August More demands of integrating optical lightpaths with IP services. Packets are transmitted over Lightpaths between GigaPOP and core nodes Multi-point communication among core nodes is enabled by MPLS/VPLS technology in order to save the bandwidth

3 Design Considerations Use current equipment, to save cost To provide services of virtual networks (multiple point to multiple point) and dedicated lightpaths Better performance No single point-of-failure, highly fault tolerant Scalable

4 TWAREN Nowadays Production Network Lease-based optical backbone at 20 Gbps. Dual vendor-provisioning at 10 Gbps each. Optical Network Acquired dark fiber segments. Each GPoP at 20 Gbps. in experimental use Tainan NCHU CCU Sinica NTU NCU NCTU NTHU NCKU NSYSU Hsinchu Taipei Taichung Taipei NCU NDHU NCTU NTHU CCU NCKU NSYSU NCNU NCHU Sinica NTU Hsinchu Taichung Tainan

5 Next Stage Tainan Taipei ASCC NTU Hsinchu NCU NCTU NTHU Taichung NSYSU NCKU CCU NCHU NCCU NIU NDHU NHLTC NTTU North Ring South Ring East Line NCNU Core Core, SDH STM-64x2 Distribution, SDH STM-64 Distribution, GE Distribution, SDH STM-16 10G/SDH 2.5G x 2/SDH 2.5G/SDH 1 GE 2 GE 1 GE 10G x 2/SDH

6 MPLS IP + MPLS+ Optical Networking TC TP TN L MPLS L MPLS L2 MPLS L2 HC NCKU NSYSU CCU NCHU NCNU NDHU NTHU NCTU ASCCNCU NHLTC NTTU NIU NTU 7609 To TAIWANLight 6509

7 TANET/TWAREN IP Service TANET is the academic network connecting colleges, high schools and elementary schools in Taiwan. TWAREN production network provides research backbone connecting among universities, research centers and international I2 partners The new architecture will provide two virtual networks to meet the basic service.

8 Virtual Networks L TANET MPLS Core L TWAREN Production MPLS Core

9 NHLTC Lightpaths serving between GigaPOP and Core TC TP TN L MPLS L MPLS L2 MPLS L2 HC NCKU NSYSU CCU NCHU NCNU NDHU NTHU NCTU ASCCNCU NTTU NIU NTU 7609 To TAIWANLight 6509 MPLS

10 NHLTC MPLS-enabled core with VLAN identification TC TP TN L MPLS L MPLS L2 MPLS L2 HC NCKU NSYSU CCU NCHU NCNU NDHU NTHU NCTU ASCCNCU NTTU NIU NTU 7609 To TAIWANLight 6509

11 MPLS NHLTC Concatenating with Core-GigaPOP Lightpath TC TP TN L MPLS L MPLS L2 MPLS L2 HC NCKU NSYSU CCU NCHU NCNU NDHU NTHU NCTU ASCCNCU NTTU NIU NTU 7609 To TAIWANLight 6509

12 MPLS NHLTC Automatic Lightpath Protection when link fails TC TP TN L MPLS L MPLS L2 MPLS L2 HC NCKU NSYSU CCU NCHU NCNU NDHU NTHU NCTU ASCCNCU NTTU NIU NTU 7609 To TAIWANLight 6509

13 MPLS End-to-End Lightpath Service NHLTC TC TP TN L MPLS L MPLS L2 MPLS L2 HC NCKU NSYSU CCU NCHU NCNU NDHU NTHU NCTU ASCCNCU NTTU NIU NTU 7609 To TAIWANLight 6509

14 TAIWANLight 2006 STARLight ManLAN New York Telehouse Pwave South LA Equinix Palo Alto PAIX 2.5 G Chicago 2.5G 5 G (combined total) TAIPEITAIPEI ONS Router

15 STM-16 Combined TWAREN/TAIWANLight Lambda Testbed 2006 NCU TP TN-15600TC-15454HC HC-15454TN-15454NCU NTU-15454NIU-15454NDHU-15454ASCC-15454NTHU-15454NCTU-15454TP STM-16*2 STM-16 TWAREN Optical Network ONS15454 Taipei ONS15454 NY ONS15454 Palo Alto Chicago ONS15454 LA ONS15454 CANARIE

16 Conclusions In this new architecture, IP and Optical network are integrated into one. With MPLS+L2 switches in core nodes, multi- point VLAN service is achieved. MPLS LSPs are configured with fast-reroute option for link protection. For lightpaths among GigaPOP and core node, the automatic protection are configured. When core node fails, manual re-route of lightpath can be done.

17 Thank you ! Comments and Suggestions?