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Network Virtualization & Hybridization Workshop: Overcoming Ossification and Complexity in the Internet

This workshop focuses on network virtualization and hybridization as solutions to the challenges of ossification and complexity in the Internet. Topics include the evolution of the Internet, real-time traffic data, virtual networks, hybrid network models, inter-domain issues, and the role of federal agencies in addressing these challenges.

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Network Virtualization & Hybridization Workshop: Overcoming Ossification and Complexity in the Internet

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  1. Welcome ESCC & Internet2 Joint Techs Workshop Madison, Wisconsin.July 16-20, 2006 Network Virtualization & Hybridization Thomas Ndousse DOE, Office of Science

  2. The Internet: The Evolving Global Network Infrastructure Real-time Traffic Data Traffic burst Traffic Video Streaming • 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 voice Traffic IP T1 ATM Ethernet SONET Satellite DWDM wireless Soliton

  3. The Internet: then, Now, & tomorrow Simple System Ubiquitous System Complex System

  4. Emerging Network Virtualization • Network Virtualization • Virtualization attempts to solve the ossification problem by allowing multiple virtual networks to co-exist within a shared infrastructure • 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

  5. Overcoming Ossification and Complexity • 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

  6. Topological Representation of Network Virtualization (PlanetLab) Source: PlanetLab and NSF GENI Workshop Report

  7. Expectations of Network Virtualization • 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?) Layer 2 Vnet #3 Layer 3 Vnet #n Main Network Net #0 Control Net Layer 4 Vnet #2 Layer 2 Vnet #1

  8. Layer 3 Layer 2 Layer 2 Layered Approach to Network Virtualization Vnet #1 Vnet #2 Vnet #3 Vnet #4 Layer 5, 6, 7 Layer 4 Layer 3 Control and Management Layer 2 Layer 1 Layer 1

  9. Hybrid Network: Minimum Implementation of Network Virtualization Main Network (IP-Based) Main Network (IP-Based) Vnet (Circuit-Based) Vnet (Circuit-Based) • Hybrid Network Model 1 • Vnet is carved from the main backbone network • Resources can be exchanged between the Vnet and the main network • Hybrid Networks Model 2 • Vnet and the main network are two independent networks • No resource exchanged between the two networks

  10. Hybrid Network Node Functions and Capabilities E e-GMPLS:GMPLS with scheduling and reservation extensions D C Routing Functions Switching Functions A F G B Data Plane Technologies: MPLS, Layer 2 VLANs, Layer 3, SONET, WDWM

  11. Peering Issues of Hybrid Networks E E D D A C F A F C A G B G B

  12. 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

  13. Inter-Agency View of Network Ossification & Virtualization • 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

  14. Questions?

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