Windows Server 2012 R2 Networking Technical Scenarios and Solutions Windows Server 2012 R2 Networking - Technical Scenarios and Solutions 1 1 title of document Table of contents Rethinking Networking with Windows Server 2012 R2 ................. 5 Challenges ............................................................................................................................................................................. 9 Introducing Windows Server 2012 R2 Networking ...................................................................................... 10 Hyper-V Network Virtualization .............................................................................................................................. 14 Virtualization Challenges ...................................................................................................................................................... 14 Solution ........................................................................................................................................................................................ 14 Virtual Machine Isolation ...................................................................................................................................................... 14 Hyper-V Network Virtualization Packet Flow ................................................................................................................ 16 Hyper-V Extensible Switch ......................................................................................................................................... 21 Challenges ................................................................................................................................................................................... 21 Solution ........................................................................................................................................................................................ 21 Constructing isolated tenant overlays ............................................................................................................................. 22 Open Framework for adding Extensions ........................................................................................................................ 22 Multi-Tenant VPN Gateway ....................................................................................................................................... 23 Challenges ................................................................................................................................................................................... 23 Solution ........................................................................................................................................................................................ 23 Windows Server gateways enable hybrid connectivity ............................................................................................. 24 Network Switch Management with OMI ........................................................................................................... 25 Challenges ................................................................................................................................................................................... 25 Physical switch management in Windows Server 2012 R2 with Windows PowerShell ................................ 26 Extensibility ................................................................................................................................................................................. 26 Partner Ecosystem for Software Defined Networking ................................................................................ 27 Gateway appliances ................................................................................................................................................................. 27 OMI-based switch solutions ................................................................................................................................................ 27 Hyper-V Switch extensions................................................................................................................................................... 28 Chipset extensions ................................................................................................................................................................... 28 SDN Benefits Summary ............................................................................................................................................... 28 Network Fault Tolerance with SMB Multichannel ......................................................................................... 29 Challenges ................................................................................................................................................................................... 29 Solution ........................................................................................................................................................................................ 29 Highly Available DHCP Service ................................................................................................................................ 31 Challenges ................................................................................................................................................................................... 31 Windows Server 2012 R2 DHCP Failover ........................................................................................................................ 31 Hot standby mode ................................................................................................................................................................... 32 Load-sharing mode ................................................................................................................................................................. 33 Predictable performance with Quality of Service........................................................................................... 34 Windows Server 2012 R2 Networking - Technical Scenarios and Solutions 2 2 title of document Challenge ..................................................................................................................................................................................... 34 Solution ........................................................................................................................................................................................ 34 NIC Teaming ...................................................................................................................................................................... 36 Challenges ................................................................................................................................................................................... 36 Solution ........................................................................................................................................................................................ 36 Dynamic NIC Teaming ........................................................................................................................................................... 37 SMB Direct and RDMA ................................................................................................................................................. 39 Challenges ................................................................................................................................................................................... 39 Solution ........................................................................................................................................................................................ 39 Virtual Receive Side Scaling (vRSS) ........................................................................................................................ 42 Challenges ................................................................................................................................................................................... 42 Solution ........................................................................................................................................................................................ 42 Dynamic Virtual Machine Queue (VMQ) ............................................................................................................ 43 Challenge ..................................................................................................................................................................................... 43 With VMQ ................................................................................................................................................................................... 43 With Dynamic VMQ ................................................................................................................................................................ 43 Single Root I/O Virtualization (SR-IOV) ............................................................................................................... 44 Challenges ..................................................................................................................................................................................