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

Connect. Communicate. Collaborate Agenda 1.Brief presentation of GÉANT2 2.IP/MPLS VPN services inherited from GÉANT 3.Optical VPNs in GÉANT2

Connect. Communicate. Collaborate 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 August 2008

Connect. Communicate. Collaborate GÉANT2 Topology

Connect. Communicate. Collaborate 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

Connect. Communicate. Collaborate 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

Connect. Communicate. Collaborate 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

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

Connect. Communicate. Collaborate 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. Needs to know internal structure of transit domain A B Traceroute A  B

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

Connect. Communicate. Collaborate 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

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

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

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

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

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

Connect. Communicate. Collaborate GMPLS in GÉANT2 GÉANT2 OXC Alcatel 1678MCC GMPLS Interface Switching Capabilities: –TDM –Ethernet L2SC GMPLS control plane available for the TDM region

Connect. Communicate. Collaborate 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.

Connect. Communicate. Collaborate 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. Where the GÉANT2 IP/MPLS network fits in this picture ? NREN

Connect. Communicate. Collaborate 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.