4. Processor or Socket NUMA Node Core LP Processor or Socket NUMA Node Core LP Processor or Socket NUMA Node Core LP Processor or Socket NUMA Node Core LP Processor or Socket NUMA Node Core LP

5. Parent Partition Hyper-V Extensible Switch Extensions Routing Filtering ACLs Network Adapter Virtual machine VM NIC

9. Physical Machine CPU0CPU1 CPU2 CPU3CPU4CPU5 RSS Queue1 RSS Queue2 RSS Queue3 RSS Queue4 Network Packet

10. Dynamic Static NUMA aware Non NUMA Closest Static NUMA Dynamic NUMA Static (default) Closest (like WS08 R2)

14. Parent Partition Virtual machine Network stack VM NIC Hyper-V Extensible Switch Virtual machine Network stack VM NIC VM Queue Default Queue Routing Filtering

20. Parent Partition Virtual machine Hyper-V Extensible Switch Virtual machine VM Queue Default Queue Extensions ACLs VM NIC Routing Filtering

26. Parent Partition Virtual machine Network stack VM NIC Virtual function (VF) Hyper-V Extensible Switch Extensions Routing Filtering ACLs SR-IOV network adapterVF Virtual machine Network stack VM NIC

30. RSSVMQ Host (No vSwitch bound to this NIC) vSwitch (Bound to the NIC) VM (vRSS) Inside the VMInside the host for vSwitch processing

31. Parent Partition Virtual machine Hyper-V Extensible Switch Virtual machine VMQ Extensions ACLs VM NIC RSS

34. NIC TEAM tNICNIC BACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACD TCP/IP Native Stack Each arrow represents a flowlet. In WS2012 each flowlet always follows the same path the previous flowlet from that flow did because flowlets aren’t detected and rebalancing isn’t performed.

35. NIC TEAM tNICNIC BACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACDBACD Each arrow represents a flowlet. In WS2012 R2 each flowlet is independently routed to the least used NIC in the team. With MAC address rewrite the adjacent switches are unaware that flows are moving around. A B C D TCP/IP Native Stack

37. Come Visit Us in the Microsoft Solutions Experience! Look for Datacenter and Infrastructure Management TechExpo Level 1 Hall CD For More Information Windows Server 2012 R2 http://technet.microsoft.com/en-US/evalcenter/dn205286 Microsoft Azure http://azure.microsoft.com/en-us/ System Center 2012 R2 http://technet.microsoft.com/en-US/evalcenter/dn205295 Azure Pack http://www.microsoft.com/en-us/server- cloud/products/windows-azure-pack

38. www.microsoft.com/learning http://microsoft.com/msdn http://microsoft.com/technet http://channel9.msdn.com/Events/TechEd