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VPNs in GÉANT2

VPNs in GÉANT2. Otto Kreiter, DANTE UKERNA Networkshop 34 4th - 6th April 2006. Agenda. Brief presentation of GÉANT2 IP/MPLS VPN services inherited from GÉANT Optical VPNs in GÉANT2. What is GÉANT2?. A European R&E Networking Model:

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VPNs in GÉANT2

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  1. VPNs in GÉANT2 Otto Kreiter, DANTE UKERNA Networkshop 34 4th - 6th April 2006

  2. Agenda • Brief presentation of GÉANT2 • IP/MPLS VPN services inherited from GÉANT • Optical VPNs in GÉANT2

  3. What is GÉANT2? A European R&E Networking Model: • 7th generation of pan-European research network infrastructure – continuation of a success story • Project partners include 30 of Europe’s national research and education networks (NRENs), DANTE and TERENA • Will connect 34 European countries and serve over 3500 research and education establishments across Europe • Provides international connectivity to other world regions • Funded jointly by NRENs and European Commission • Project timescale September 2004 - August 2008

  4. GÉANT2Topology

  5. GÉANT2 Objectives • Provide a gigabit-speed infrastructure to support European research and education • Deploy an international hybrid network: routed IP traffic combined with switched point-to-point circuits • Implement end-to-end QoS provision • Provide a research infrastructure for network technology developments • Develop a wider range of network services • Performance monitoring • Security • Bandwidth on demand • Testbed facility • Mobility and roaming

  6. Services inherited from GÉANT IP Services using Juniper routers. • Native Best Effort IPv4 • Native Best Effort IPv6 • Native Multicast v4 • Native Multicast v6 • QoS Services • Premium IP - PIP • Less than Best Effort IP - LBE

  7. Services inherited from GÉANT MPLS services • L2-VPNs • Started with Juniper CCC, “migrated” to LDP signalled L2-circuits • Multi-domain and multi-vendor L2-circuits in place. • Traffic engineered paths • To enforce QoS • Part of multi-domain L2-VPNs • Stitching • Contiguous LSPs

  8. Needs to know internal structure of transit domain Multi-domain LSPs - I LSP Stitching Pro: We are in control of the “transit” LSP Cons: Done manually at the GÉANT/GÉANT2 border • Not flexible • Error prone Manual stitching point A B

  9. Needs to know internal structure of transit domain Traceroute AB Multi-domain LSPs - II Contiguous LSP Pro: Easy to configure it Cons: Hard to enforce any policy • TE across transit domain • Bandwidth reservation across transit domain • Possible solution nesting. A B

  10. Multi-domain LSPs - III Bandwidth constraints LSP nesting A B C Needs to know IN/OUT of transit domains Pro: We are in control of the “transit” LSPs Cons: Not known yet !

  11. IP/MPLS services • GÉANT2 will continue to provide the same IP/MPLS and L2-VPN services. • Subsequently will look into possibilities to improve it • LSP nesting. • Looking forward to deploy “new” services if they are required by the R&E community. • L3-VPNs • VPLS • Point-to-Multipoint LSPs

  12. Optical VPNs in GÉANT2 Requirements of BoD services: • Deterministic bandwidth • Deterministic delay • Ethernet • Automated provisioning • Advanced reservation (?)  Solution “Optical” VPNs.

  13. Connect. Communicate. Collaborate Technological domains Europe Ethernet IP/MPLS SDH/EoSDH

  14. Connect. Communicate. Collaborate GÉANT2 technological domains SDH 10GE 1GE

  15. Connect. Communicate. Collaborate NMS GÉANT2 technological domains VC-4 hand-over point GFP-F VCAT VLANs ? ? Domain A Domain B GFP-F VCAT SDH 10GE 1GE

  16. Connect. Communicate. Collaborate GMPLS the solution for Optical-VPNs ? GMPLS GMPLS GMPLS Domain A Domain B e2e path Ethernet LSP SDH LSP

  17. GMPLS in GÉANT2 GÉANT2 OXC Alcatel 1678MCC GMPLS Interface Switching Capabilities: • TDM • Ethernet L2SC GMPLS control plane available for the TDM region

  18. What is missing… GMPLS controlled Ethernet Label Switching A single GMPLS control plane instance for multiple regions (TDM and Ethernet) Multi Region Network • Would be nice to have "triggered signalling" for lower layers.

  19. Where the GÉANT2 IP/MPLS network fits in this picture ? They will form two separate service layers at the beginning They may form a global TDM and packet (Ethernet/IP) traffic engineering database in the future. NREN NREN

  20. Conclusion GÉANT2 will continue to provide L2-VPN services in the IP/MPLS network. New emerging inter-domain MPLS techniques to improve L2-VPN deployments. GMPLS seems to be an answer for Optical-VPNs in GÉANT2 in support of BOD activities.

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