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Low-Latency Networks for Financial Applications

2. Wall Street Key Issues. Network Fabric is an integral element ofthe solution and key to business success . 3. Latency: The race to Zero. Every Microsecond Counts. TM. 4. Use Case: Market Data. Since 2007, end-to-end latency has been reduced from many hundreds of microseconds to tens of microsecondsThis was achieved through a combination of: (1) faster CPUs (2) faster Network Interface Controllers, (3) accelerated middleware appliances, (4) ultra-low latency switches, and (5) a lot of tuni9459

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Low-Latency Networks for Financial Applications

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    1. 1 Low-Latency Networks for Financial Applications Arista Networks, Inc Andy Bechtolsheim September 14, 2009

    2. 2

    3. 3 Latency: The race to Zero

    4. 4 Use Case: Market Data Since 2007, end-to-end latency has been reduced from many hundreds of microseconds to tens of microseconds This was achieved through a combination of: (1) faster CPUs (2) faster Network Interface Controllers, (3) accelerated middleware appliances, (4) ultra-low latency switches, and (5) a lot of tuning Reduction on latency was achieved while transaction rates increased dramatically, by as much as a factor of 10

    5. 5 Market Data Example

    6. 6 Proven Messaging Performance

    7. 7 Minimizing Latency Reduce the number of software layers Application-application send-receive Avoid the operation system if possible Minimize the number of context switches Use ultra-low-latency network switches

    8. 8 Switch Latency Comparisons

    9. 9 End-to-end Latency

    10. 10 Partnering with all leading NIC Vendors

    11. 11 Working with all leading messaging vendors

    12. 12 Latency Conclusions Latency requires optimizing all levels of stack Arista’s switch latency is 1/5th to 1/50th of other “low-latency” Ethernet switches Arista is delivering this value in partnership with all leading NIC and messaging vendors Ethernet switch latency no longer a limitation

    13. 13 Scaling the Network

    14. 14 Cost-Efficient Scalability Applications require wire-speed performance for fabrics with 1000s of servers Today the cost of fabric bandwidth increases dramatically as the size of the fabric increases This needs to change in order to build large-scale high-performance applications

    15. 15 The Cost of Bandwidth

    16. 16 Flat L2 Fabric Design Core Switch Hundred of 10G ports Wire-speed architecture Leaf Switch 24 to 48 10G ports 4 or more 10G uplinks Overall Capacity > 10,000 ports > 10 Tbps throughput

    17. 17 MLAG (Multi-Chassis LAG)

    18. 18 MLAG (Multi-Chassis LAG)

    19. 19 MLAG Advantages Leverages existing LAG protocol 100% compatible with IEEE 802.3ad LACP Standard protocol, no vendor lock-in Millisecond Failover Does not rely on spanning tree Yet compatible with spanning tree Does not require L3 Routing Enables scalable active/active L2 networks

    20. 20 Fabric Scaling Summary Bandwidth per server is determined by the non-blocking core/spine switching bandwidth To achieve low latency and minimize jitter requires a non-blocking core fabric design MLAG is a simple and effective solution for scalable and reliable network design

    21. 21 Arista EOS Extensible Operating Systems

    22. 22 Arista EOS Modular Architecture

    23. 23 Arista EOS Modularity

    24. 24 Arista EOS Extensibility

    25. 25 Citrix VPX Virtual Appliance Runs inside Arista Switch Load-balancing with Application Security Accelerates Web Application Performance

    26. 26 EOS Extensibility: What is Next? Any application that runs on Linux Third party or customer developed APIs to the network switch state Control and Datapath Interfaces Cloud Flow Interface

    27. 27 Arista Product Summary Ultra low-latency switch architecture Highest density 10G switches in industry Roadmap to 40 and 100 Gigabit Ethernet Support for all 10/40/100G Physical Layers Extensible EOS Software Architecture

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