Cisco Virtual Networking: Extend Advanced Networking For

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Solution OverviewCisco Virtual Networking: Extend AdvancedNetworking for Microsoft Hyper-V EnvironmentsWhat You Will Learn For enterprise and service provider customers who want to extend Cisco networking experience to their MicrosoftWindows Server 8 Hyper-V deployments, Cisco offers a full portfolio of virtual networking technologies through the Cisco Nexus 1000V Series Switches and Cisco Unified Computing System (Cisco UCS ) Virtual MachineFabric Extender (VM-FEX).The Cisco Nexus 1000V Series is a distributed virtual switching platform that provides advanced networkingfeatures, integrated virtual services, and a consistent operational model across physical and virtual environments.Customers can rely on the robust Cisco NX-OS Software command-line interface (CLI) and feature set andCisco’s innovative network services architecture for their virtual environments.Cisco UCS VM-FEX simplifies virtual machine networking by collapsing virtual and physical networking into asingle easy-to-manage infrastructure while using Hyper-VSingle-Root I/O Virtualization (SR-IOV) technology toprovide near-bare-metal I/O performance to the virtual machines.ChallengeServer virtualization provides numerous benefits to data center customers; however, the dynamic nature of virtualenvironments also presents additional complexities for communication between virtual machines. In a virtualizedenvironment, multiple virtual machines share the same hardware infrastructure and move from one server toanother (or across data centers), and some virtual machine–to–virtual machine traffic never reaches the physicalswitch.This dynamic environment poses the following questions for the virtualization customer: How can I provision network policies with virtual machine–level details? How can I enforce consistent network and security policies when virtual machines move? How can I troubleshoot communication problems between virtual machines? How can I reuse the existing investments made for the physical network?One additional complexity is based in the operational model: most current virtualization management toolsconcentrate the operational duties for computing, networking, and storage resources in the hands of a singlevirtualization administrator. This approach both complicates the job of the virtualization administrator and createsadditional organizational complexity in the management of physical and network infrastructures.Cisco offers two options to help virtualization customers address these problems (Figure 1): Extend enterprise-class networking functions to the hypervisor layer with Cisco Nexus 1000V SeriesSwitches. Extend physical network to the virtual machine with Cisco UCS VM-FEX. 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 1 of 6

Figure 1.Cisco Virtual Networking Solution OptionsBusiness BenefitsCisco Virtual Networking solutions reduce the operational complexities associated with virtual machine–to–virtualmachine networking and thus help customers gain more of the benefits of server virtualization technology.Cisco Virtual Networking solutions offer the following benefits: Preserves your existing investments in network operation models and management tools Network administrators can manage network policies across the physical and virtual environments usingthe same interfaces (Cisco NX-OS CLI), and staff members do not need to be retrained. Customers can use existing network monitoring and management tools to manage both physical andvirtual environments. Simplifies virtual networking operations Visibility into the traffic between virtual machines simplifies virtual machine–to–virtual machine networktroubleshooting. Virtualization-aware networking features simplify virtual machine network policy management. Tight integration with the Microsoft System Center portfolio allows faster policy provisioning, and clearseparation of roles between server and network administrators. Provides better security Virtualization-aware networking provides better security by extending network policies and networkvisibility to the virtual machine level. 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 2 of 6

SolutionCisco offers two solutions based on the Hyper-V extensible switch framework to extend advanced networkingfeatures to Hyper-V virtual environments. Customers can choose the solution that best fits their needs. The CiscoNexus 1000V Series is a software-based solution focused on extending advanced features and integratedservices with a flexible deployment model, and Cisco UCS VM-FEX is a hardware-based solution that offerssimplified management and near-bare-metal I/O performance.Extend Networking Functions to the Hypervisor Layer Using Cisco Nexus 1000V SeriesFor customers who want to extend comprehensive networking capabilities to their virtualization environments witha flexible deployment model, the Cisco Nexus 1000V Series provides an excellent solution. It uses the MicrosoftHyper-V Extensible switch framework to bring advanced virtualization-aware networking functions into thehypervisor layer.Like other distributed modular Cisco switches, Cisco Nexus 1000V Series Switches consist of two components(Figure 2): Virtual Ethernet module (VEM): A software line card that is embedded in Hyper-V deployed on each host;each virtual machine on the host is connected to the VEM through a virtual Ethernet (vEth) port Virtual supervisor module (VSM): The management module that controls multiple VEMs and helps definevirtual machine–centric network policies; this module is similar to the supervisor module on a physicalmodular switchFigure 2.Cisco Nexus VEM and VSM Components 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 3 of 6

In addition to these two modules, Cisco Nexus 1000V Series Switches include Cisco vPath technology and extendmultiple network services to the virtual environments.The following virtual networking services are currently available for the Cisco Nexus 1000V Series: Cisco Virtual Security Gateway (VSG): Provide detailed, zone-based security policies for multi-tenantvirtual environments. Cisco Virtual Wide Area Application Services (vWAAS): Provide assured application performanceacceleration to users connected to enterprise data centers and enterprise private clouds. Cisco Network Analysis Module (NAM): Provide actionable visibility to troubleshoot performance problemsin for your virtual environments.For customers looking for a dedicated hardware appliance to host all the Nexus 1000V related virtual appliances(VSM, VSG, vWAAS, NAM etc.), Cisco offers the Nexus 1010 Virtual Services Appliance. With the Cisco Nexus1010, network administrators do not need to rely on server administrators to run networking appliances, and thisreduces the operational complexity of virtualized data center environments.Extend Physical Network to Virtual Machine with Cisco UCS VM-FEXFor Cisco UCS customers who want a simpler management model and near bare-metal performance for theirvirtualized workloads, Cisco UCS VM-FEX offers a compelling solution.Cisco UCS VM-FEX is an extension of the fabric extender technology pioneered by Cisco. When connected to aCisco Nexus 5000 Series Switch or Cisco UCS fabric interconnect, fabric extenders act as remote line cards of theCisco Nexus 5000 Series or Cisco UCS fabric interconnect. Fabric extender technology helps enable customers toachieve the benefits of simplified management of chassis-based modular switches and the convenience of top-ofrack deployment.Cisco UCS VM-FEX extends this technology all the way to the virtual machines. Each virtual machine is connectedto a dedicated virtual Ethernet port on the Cisco UCS fabric interconnect, and all virtual machine traffic is sentdirectly to this virtual Ethernet port on the fabric interconnect. This virtual Ethernet port can be configured,managed, monitored, and debugged just like a physical port on the Cisco UCS fabric interconnect (Figure 3). 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 4 of 6

Figure 3.Cisco UCS VM-FEX Extends Cisco Fabric Extender Technology with Cisco UCS Fabric InterconnectsCisco UCS VM-FEX solutions offer multiple benefits to virtualization customers: Operation simplicity: Collapsing the physical and virtual networking layers into one reduces the number ofmanagement points that the network administrator has to monitor, and offers the same consistent featureset and infrastructure for both virtual and physical infrastructures. Improved performance: By using Microsoft Hyper-V SR-IOV functionality, this solution offers near-baremetal performance for virtual workloads.Why Cisco?We recognize that the intersection of computing, networking, virtualization, and software is at the center of a newera of innovation. The Cisco and Microsoft alliance extends the value of Cisco Unified Fabric, Cisco UnifiedComputing System, and Cisco Unified Network Services data center solutions by integrating the operating system,native hypervisor, application, and management stacks into manageable and scalable solutions. Together, Ciscoand Microsoft offer services and support to accelerate time-to-value and return on investment (ROI).The Cisco Unified Computing System unites applications, networking, storage, and Cisco Unified Fabric supportfor virtualization and cloud computing into a cohesive system that helps reduce overall costs, increaseorganizational agility, and improve energy efficiency. The Cisco and Microsoft alliance extends the value of theCisco Unified Computing System and Cisco Unified Network Services by integrating the Microsoft operatingsystem, application, and management stacks, which are optimized for virtualization and supported by CiscoValidated Designs and support services.Our partner ecosystem, including value-added resellers and global systems integrators, provides benefits forMicrosoft partners and Cisco partners and customers alike. Cisco and Microsoft take innovative approaches to 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 5 of 6

help our customers get the most from their data centers and our technologies. One approach is to pretest,validate, and back with validated designs and support a growing list of Microsoft technologies, including MicrosoftExchange Server 2010 running on Windows Server 2008 R2 with Hyper-V, SharePoint Server, and SQL Serverand virtual desktops using Hyper-V virtualization. These solutions are all part of our mutual commitment to helporganizations thrive by getting the most from their data centers.For More Information For additional information about Cisco Nexus 1000V Series Switches, please visithttp://www.cisco.com/go/nexus1000v/ For additional information about Cisco UCS VM-FEX, please visit http://www.cisco.com/go/vmfex/.For additional information about Cisco Microsoft solutions and technologies, please visithttp://www.cisco.com/go/microsoft/Printed in USA 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.C22-687087-0010/11Page 6 of 6

With the Cisco Nexus 1010, network administrators do not need to rely on server administrators to run networking appliances, and this reduces the operational complexity of virtualized data center environments. Extend Physical Network to Virtual Machine with Cisco UCS VM-FEX

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