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  • FD.io社区中国行暨未来网络技术沙龙·南京站 会议小结

    What is FD.io VPP?

    1. FD.io VPP(Fast Data Input/Output Vector Packet Processing)is a new network multi-tool.
    2. Feature:Fast, Scalable and Determinisic,Extensible and Flexible modular design,Developer friendly.
    3. New Directions:Asymmectrical Pipelines. Containers. TCP Acceleration. Accelerators.
    4. Summary:FD.io VPP is a multi-vendor packet processing technologies that is leading the network transformation. FD.io VPP is a fast and easy-to-use tools.

    What the FD.io VPP can do?

    中兴:Build the network infrastructure for MEC(multi-access edge computing) and IOT(物联网), based on FD.io /VPP

    1. Problem:Higher requirement for high bandwidth, ultra-low latency. The load of core network is further aggravated.
    2. case1:MEC Traffic Offloading Locally
      case2:IoT Gateway
    3. Contributions for VPP:ARP module,IP fragment packet pseudo reassembly improvement
      NAT ip fragment & icmp fragment packet pseudo reassembly support
      LB static scheduling algorithm (rr,wrr,hash)supplement;LB service health check support

    华为:DMM

    1. Background:TCP protocol found as the perfomance killer
    2. Requirement:
    • Kernel space or User space?
    • Apps have different flavours?
    • hardware is not all the same
      DMM Protocol Framework: Dual mode, Multiple protocols & Multiple instances, aim to provide a new solution of diverse protocol stacks for developers.-Support Kernel Space and User Space-Simplify new protocol adoptions and Integrations-Enable “protocol routing” in Cloud Networking-
    1. DMM Protocol Framework deal a lot of problem so we can concentrate on develop.
    2. User Case for DMM
    • Traditional TCP has limited bandwidth usage in the WAN, because:
    • TCP Congestion Control will limit delivery rate
    • Packet Loss and Resend will decrease throughput.
      Optimized TCP stack in DMM can achieve 90% bandwidth usage and low latency, easy to deploy
      Optimized TCP stack in DMM can support mass concurrent connections and achieve smooth user experience even 12% packet loss rate.
    1. Stack developers can concentrate on user space protocol innovations;
      Apps can dynamically choose different protocols.
      Support both kernel TCP/IP stack and user space stack;
      Container network will easily build E2E communication capacities.
    2. huawei 罗素:支撑管道纵深(使能运营商,不可替代),云和IT,消费者终端和行业数字化

    Intel:Hyperscan

    1. Hyperscan is a regular expression matching library。Regular expression is used to do string operation, or to search and replace some pattern. Hyperscan is used to optimize performance.
    2. Dimensions of Performance Optimize:Sreaming and non-streaming performance.
      Small writes.
      High match rates.
      Scaling to multiple cores/threads.(linear).
      Pattern compile time (<1s or <10s)
      Optimize size。
    3. Three tools : Hsbench-hyperscan性能测试 Hscheck-版本兼容性 Hscollider-传统匹配库兼容性
    4. Summary:Solid and mature. Delivers substantial speedups to open source IPS/IDS systems.
      (An Optimization can have many dimensions,and can bring some tools to be better used.)

    京东:use DPDK to do LB

    新华三:DPDK在NFV中的应用

    1. 关注点一:三层解耦,编排,控制,网元,虚拟化层能异厂家对接
    2. 关注点二: NFV的转发性能,低时延,高性能,和硬件转发相比
    3. 优化手段:
    • 无锁队列
    • 大页表—减少TLBmiss
    • 内存零拷贝
    • CPU编译指令优化
    • PMD调度模型
    1. 限制:只支持用户态,不提供用户态协议栈,需要厂家自行开发
    2. 优化:转发性能显著提升,单核性能可以翻倍
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  • 原文地址:https://www.cnblogs.com/vancasola/p/8619305.html
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