Inter-carrier photonic networking developing project in Japan

Transcription

1 Inter-carrier photonic networking developing project in Japan Satoru Okamoto 1, Eiji Oki 2, Wataru Imajuku 2, Tomohiro Otani 3, and Naoaki Yamanaka 1 1: Keio University 2: NTT 3: KDDI R&D Laboratories Page 1

2 Agenda Formation of the CORE inter-carrier photonic network developing project Multi-carrier IP+Optical network architecture Hierarchical inter-carrier interface architecture Interworking of PXC based Lambda Switch Capable; LSC network domains Formation of the inter-carrier photonic network developing project in Japan Page 2

3 Formation of the CORE inter-carrier PN developing Project Keio University is a hub of 2 carriers From a viewpoint of users Funded by Ministry of Internal Affairs and Communications (MIC) of JAPAN SCOPE program 2006 ~ 2008 Page 3

4 Mission of the project Get standardizations of the inter-carrier photonic network interface protocols. Promotion of the inter-carrier protocol development. Technical discussions in the Keio University Collaboration with the Kei-han-na Project Collaboration with the JGN II Project Collaboration with other international organizations ISOCORE, Internet2, etc. Expected outcomes Contributions to Standardization Organizations IETF, ITU-T, OIF Implemented sample codes and interoperability results Technical Papers Page 4

5 Agenda Formation of the CORE inter-carrier photonic network developing project Multi-carrier IP+Optical network architecture Hierarchical inter-carrier interface architecture Interworking of PXC based Lambda Switch Capable; LSC network domains Formation of the inter-carrier photonic network developing project in Japan Page 5

6 Motivation: IP+Optical Network Core IP Transport Network architecture IP + Optical network architecture with GMPLS control Optical Core Transport Network Not only the IP transport service L2 services, L1 services GMPLS Core-Edge Routers MPLS and GMPLS migration function GMPLS IP/MPLS Network GMPLS router GMPLS OXC GMPLS IP/MPLS Network Lambda Path Page 6

7 Multi-carrier IP+Optical NW (1) Inter-carrier IP/MPLS layer NW connection No end-to-end lambda path, 1 BGP session in IP/MPLS layer Carrier A IP/MPLS Network GMPLS OXC Inter-Carrier Connection Points : between Routers IP/MPLS Network GMPLS OXC Carrier B Page 7

8 Multi-carrier IP+Optical NW (2) Inter-Carrier connection points are assigned between OXCs End-to-end lambda path, 2 BGP sessions in Optical NW layer and IP/MPLS layer (if required). Carrier A OXC Lambda Path OXC Carrier B Page 8

9 Heterogeneous NW technologies Overlay architecture for L1/L2 services UNI interworking and multi-layer Carrier A (ITU-T ASON overlay architecture) OXC SDH path OXC Lambda paths Carrier B (IETF GMPLS overlay architecture) Page 9

10 Agenda Formation of the CORE inter-carrier photonic network developing project Multi-carrier IP+Optical network architecture Hierarchical inter-carrier interface architecture Interworking of PXC based Lambda Switch Capable; LSC network domains Formation of the inter-carrier photonic network developing project in Japan Page 10

11 Hierarchical inter-carrier interface architecture (1) Basic IP + Optical architecture model How to determine in TDM/L2SC and PSC layers? GMPLS/ASON Network for Carrier-A UNI (PSC) (L2SC) PSC L2SC TDM LSC/FSC GMPLS/ASON Network for Carrier-B PSC L2SC TDM LSC/FSC UNI (PSC) (L2SC) (TDM) (LSC) (TDM) (LSC/ FSC) OXC/PXC (LSC/ FSC) Page 11

12 Problems in the Multi-layer RSVP message may not be exchanged between node B and node E. Both I-NNI and should be worked on the same port. SCN: Signaling Communications Network : Network Call Controller CC: Call Controller Carrier-A Carrier-B A Client 1 UNI B E UNI Z Client 2 Client Layer CC domain C D CC domain Server Layer SCN SCN SCN SCN SCN Page 12

13 Proposed solution: pseudo node Pseudo Nodes are defined in each layer OXC/PXC should supports upper layer functions Scalability? Real Node Cost >> Pseudo Node Cost GMPLS/ASON Network GMPLS/ASON Network for Carrier-A for Carrier-B UNI PSC PSC UNI (PSC) L2SC L2SC (PSC) (L2SC) TDM TDM (L2SC) (TDM) LSC/FSC LSC/FSC (TDM) (LSC/ FSC) (LSC) OXC/PXC (LSC/ FSC) Page 13

14 Agenda Formation of the CORE inter-carrier photonic network developing project Multi-carrier IP+Optical network architecture Hierarchical inter-carrier interface architecture Interworking of PXC based Lambda Switch Capable; LSC network domains Formation of the inter-carrier photonic network developing project in Japan Page 14

15 Interworking activities (1) LSC based ASON/GMPLS domains interworking trial GbE ASON overlay domain SCN SCN GMPLS peer domain GbE SCN Next Step Numbered vs. Unnumbered IPv4 vs. IPv6 SCN GMPLS overlay domain SCN SCN GbE : - OIF signaling extension - Pseudo single session - BGP4 extension TDM is also examined. Page 15

16 Interworking activities (2) Now trying multi-layer interworking with pseudo nodes Ethernet over Lambda Ethernet over SDH over Lambda Carrier-A Carrier-B A Client 1 UNI B CC domain C D E CC domain UNI Z Client 2 Client Layer CC domain C D CC domain Server Layer SCN SCN SCN SCN SCN Page 16

17 Agenda Formation of the CORE inter-carrier photonic network developing project Multi-carrier IP+Optical network architecture Hierarchical inter-carrier interface architecture Interworking of PXC based Lambda Switch Capable; LSC network domains Formation of the inter-carrier photonic network developing project in Japan Page 17

18 Formation of the inter-carrier Photonic Network developing Project in Japan PIL: Kei-han-na ipop organization Page 18

19 Acknowledgement This presentation is partially supported by SCOPE program of the Ministry of Internal Affairs and Communications (MIC) of JAPAN. SCOPE: Strategic Information and Communications R&D Promotion Programme (in Japanese) Page 19

20 Thank you!! Page 20