1. Performance Plumbing Adam Bechtel 24 June 2008

2. WARNING  These slides won’t make any sense unless you hear the presentation.

3. The beginning…. Server Internet

4. You grow a little…. Server Internet Switch Load Balancer Server

5. Sites evolve….and so does a Backbone…

6. You’re global!

7. KNOBS  Cost  Packetloss  Latency  Maintenance  Diversity  Isolation  *Special*

8. ANYCAST  Network address and routing scheme used for proximity  Also useful for load absorption

9. ANYCAST ADDRESS WestCentralEast

10. ANYCAST SERVICES NameServer1: NameServer2: NameServer3: Anycast Cloud1Anycast Cloud2

11. ANYCAST SCALING Global Scaling  Add more sites Local Scaling  VIP  ECMP

12. ANYCAST CONSIDERATIONS  How are you going to monitor your service?  Can your service handle transient network events?  How much control do you want over where your users go?

13. CACHE Locate caches near users to minimize latency Need intelligent system to direct users to caches

14. PROXY  Offload work from your users  Make your service faster

15. PLACEMENT Cache and Proxy at edge of network

16. Thanks