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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

Jean WalrandEECS


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Outline

  • New Services

  • New Requirements

  • New Technology


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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?)


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New Services (continued)

  • Storage (e.g., Brocade)


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New Services (continued)

  • ASP (e.g., CORIO)


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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


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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


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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


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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, …


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New Technology: Network Processors (cd)


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New Technology: Network Processors (cd)


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New Technology: Network Processors (cd)

  • C-PORT (Motorola)

    • 2.5Gbps

    • Classification, CoS (DRR)

  • Payload Plus (Agere)

    • 2.5bps

    • Deep Classification, Discard Policies, CoS


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New Technology: Network Processors (cd)

  • IXP (Intel)

Each RISC microengine

Handles 4 threads


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New Technology: SAN

  • Storage Architectures:


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New Technology: SAN (cd)

  • Overview:

Source: http://www.redbooks.ibm.com/pubs/pdfs/redbooks/sg245470.pdf


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New Technology: SAN (cd)

  • Technology:

    • Today: Fibre Channel

    • Tomorrow: 10G Ethernet


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New Technology: SAN (cd)

  • Fibre Channel:


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New Technology: SAN (cd)

  • Fibre Channel:

Source: http://www.fibrechannel.com/technology/


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New Technology: SAN (cd)

  • Fibre Channel: Protocols

Source: http://www.nswc.navy.mil/cosip/feb98/tech0298-1.shtml


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