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Trends

Trends Jean Walrand EECS Outline New Services New Requirements New Technology New Services CDN: Content Distribution Network (e.g., AKAMAI) Distribute the Servers, Redirect Requests DNS: (Name -> IP) randomized Application: Web page -> Modified Links

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Trends

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  1. Trends Jean WalrandEECS

  2. Outline • New Services • New Requirements • New Technology

  3. New Services • CDN: Content Distribution Network(e.g., AKAMAI) Distribute the Servers, Redirect Requests • DNS: (Name -> IP) randomized • Application: Web page -> Modified Links • Middleware: Redirection Servers (reached by anycast?)

  4. New Services (continued) • Storage (e.g., Brocade)

  5. New Services (continued) • ASP (e.g., CORIO)

  6. New Services (continued) • Distributed Services • Transport objects across network • Advertise services • Agents monitors ads and manage connections between servers and clients • Issues: • Scalability • Fault Tolerance • Load Balancing • Security

  7. New Requirements: • Hacker-Proof • Robust against DoS attacks • Robust against viruses, intrusions, physical attacks • Reliable: • 99.999% Availability • 50ms protection switching • Secure: • Confidentiality • Privacy • Authenticity • Non-Refutability

  8. New Technology: Network Processors • Motivation: • Header Processing more complex: IPv6, MPLS, VPN • Deep packet processing: Firewall, Intrusion Detection, NAT, Security • TCP termination within the network • Multiple Interfaces: POS, Fiber Channel, ATM, … • Complex Scheduling: QoS, CoS

  9. New Technology: Network Processors • Definition of NP: • Programmable packet processor that can implement networking functions • Desirable Features: • Full line rate: 2.5 – 10 – 40 Gbps • Classification • Traffic Management (Layer 3 + QoS) • Higher Layers (?): PPP termination, Load Balancing, …

  10. New Technology: Network Processors (cd)

  11. New Technology: Network Processors (cd)

  12. New Technology: Network Processors (cd) • C-PORT (Motorola) • 2.5Gbps • Classification, CoS (DRR) • Payload Plus (Agere) • 2.5bps • Deep Classification, Discard Policies, CoS

  13. New Technology: Network Processors (cd) • IXP (Intel) Each RISC microengine Handles 4 threads

  14. New Technology: SAN • Storage Architectures:

  15. New Technology: SAN (cd) • Overview: Source: http://www.redbooks.ibm.com/pubs/pdfs/redbooks/sg245470.pdf

  16. New Technology: SAN (cd) • Technology: • Today: Fibre Channel • Tomorrow: 10G Ethernet

  17. New Technology: SAN (cd) • Fibre Channel:

  18. New Technology: SAN (cd) • Fibre Channel: Source: http://www.fibrechannel.com/technology/

  19. New Technology: SAN (cd) • Fibre Channel: Protocols Source: http://www.nswc.navy.mil/cosip/feb98/tech0298-1.shtml

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