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Department of Energy Office of Science ESCC & Internet2 Joint Techs Workshop Madison, Wisconsin.July 16-20, 2006 Network Virtualization & Hybridization Thomas Ndousse DOE, Office of Science Welcome
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Department of Energy Office of Science IP Real-time Traffic burst Traffic Data Traffic voice Traffic wireless T1 Ethernet ATM SONET DWDM Satellite Video Streaming Soliton The Internet – One of the greatest achievement of the 20-th century The Internet must evolve, innovate, and scale to to meet increasing ubiquity Ossification – Difficult to introduce new innovations in the network The Internet: The Evolving Global Network Infrastructure
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Department of Energy Office of Science Original Design Expectations Current Operational Expectations Research infrastructure Commerce, defense, science, Health, education, transportation, national security, etc Best-effort, shared resources Guaranteed bandwidth, dedicated channels, VLANs, VPNs, MPLS, GMPLS, quality of service Twisted pair copper Fiber optics, free-space optics, wireless, satellite, WiFi. WiMax Single flow throughput: 9.6, 56kbps, 10 Mbps 100 Mbps, ~Gbps, ~Tbps Transport stack: TCP Zero-copy, off-load engines, RDMA, Data traffic Data, voice, streaming video, Real-time, etc Single flow throughput: 9.6, 56Kbps, 10 Mbps 100 mbps, ~Gbps, ~Tbps The Internet: then, Now, & tomorrow Simple System Complex System Ubiquitous System
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Department of Energy Office of Science Network Virtualization Virtualization attempts to solve the ossification problem by allowing multiple virtual networks to co-exist within a shared infrastructure Emerging Network Virtualization Why? De-ossification - expand or eliminate the neck of the IP hourglass Attempt to understand and manage large-scale network complexities Stimulate research and innovations through deployment and testing of disruptive network technologies Accommodate the requirements of diverse types of applications, especially high-end science applications
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Department of Energy Office of Science PlanetLab – Larry Peterson, Scott Shenker, Jon Turner A geographically distributed platform for deploying, evaluating, and accessing planetary-scale network services A blueprint for future Internet Platform for testing disruptive technologies before adoption GINI (Global Environment for Networking Innovations ) Beyond existing packet and circuit switching technologies Building security into network architecture and protocol primitives Towards a network science - Network architecture theories, the Internet as a complex system Overcoming Ossification and Complexity
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Department of Energy Office of Science Topological Representation of Network Virtualization (PlanetLab) Source: PlanetLab and NSF GENI Workshop Report
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Department of Energy Office of Science Layer 2 Vnet #1 Layer 4 Vnet #2 Layer 2 Vnet #3 Layer 3 Vnet #n Each virtual Net (Vnet) is an independent network that operates in a protected partition Inter-Vnet communication is allowed at the shared node Vnet #0 is designated as the network that performs the control and management Vnets can acquire and release resources to the main network infrastructure (dynamically?) Net #0 Control Net Expectations of Network Virtualization Main Network
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Department of Energy Office of Science Layer 2Layer 3 Layer 2 Layer 1 Layer 5, 6, 7 Layer 1 Layer 2 Layer 3 Vnet #1 Vnet #2 Vnet #3Vnet #4 Control and Management Layer 4 Layered Approach to Network Virtualization
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Department of Energy Office of Science Hybrid Network Model 1 1.Vnet is carved from the main backbone network 2.Resources can be exchanged between the Vnet and the main network Vnet (Circuit-Based) Main Network (IP-Based) Hybrid Networks Model 2 1.Vnet and the main network are two independent networks 2.No resource exchanged between the two networks Vnet (Circuit-Based) Main Network (IP-Based) Hybrid Network: Minimum Implementation of Network Virtualization
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Department of Energy Office of Science A B F E D G C Routing Functions Switching Functions Hybrid Node Function InputOutput Routing Switching Routing Switching Hybrid Node Control InputOutput MPLS e-GMPLS MPLS E-GMPLS e-GMPLS e-GMPLS:GMPLS with scheduling and reservation extensions Data Plane Technologies: MPLS, Layer 2 VLANs, Layer 3, SONET, WDWM Hybrid Network Node Functions and Capabilities
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Department of Energy Office of Science Peering Issues of Hybrid Networks A A B F E D G C A B F E D G C Hybrid Net A Hybrid Control Plane MPLS e-GMPLS MPLS e-GMPLS Hybrid Net B Hybrid Control Plane MPLS e-GMPLS MPLS e-GMPLS
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Department of Energy Office of Science Hybrid Network Research and Engineering Issues Hybrid Network Theory and Foundation Hybrid network architecture Hybrid network node capabilities, functions, signaling, and control Hybrid network traffic engineering and network management Inter-Domain Issues for Hybrid Networks Hybrid network taxonomy – Common terminologies and capabilities Multi-domain control plane: engineering, policies, authentication Hybrid network security issues: vulnerabilities of control planes, Circuit authentication Hybrid network monitoring, performance measurement and prediction
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Department of Energy Office of Science Ossification is a problem across all federal agencies (DOE, DARPA, NSA, etc) GENI is NSF’s view of the problem – A multi- agency approach to the problem is critical Contribution from the science community is especially critical LSN Workshop – The Future of Internet and Experiential Facilities Design, July 24-25, 2006 Inter-Agency View of Network Ossification & Virtualization
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Department of Energy Office of Science Questions?
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