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Shehzad Merchant - Data Center Virtualization: A Networking Problem - Interop Mumbai 2009
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Shehzad Merchant - Data Center Virtualization: A Networking Problem - Interop Mumbai 2009

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In the drive towards virtualization, enterprises face several networking challenges. Merchant’s session will attempt to highlight these challenges, and will share best practices with CIOs and network …

In the drive towards virtualization, enterprises face several networking challenges. Merchant’s session will attempt to highlight these challenges, and will share best practices with CIOs and network administrators who are planning on moving towards a consolidated data center, and would like to proactively plan for the migration. The presentation will highlight some of the key technology changes and disruptions that virtualization brings to the networking space, point out some of the common pitfalls, and introduce how the networking industry is responding to those challenges. Additionally this session will discuss the move to virtual switching and the dissolving network edge, the shifting locus of control in the data center, and dealing with virtual machine mobility in what has traditionally been a static network environment.

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  • 1. Data Center Virtualization – A Networking Problem Shehzad Merchant Sr. Director, Strategy and Market Development © 2009 Extreme Networks, Inc. All rights reserved.
  • 2. Agenda 1. The Evolving Data Center 2. The Networking challenges 3. The Solution Envelope 4. Discussion Extreme Networks Confidential and Proprietary. © 2009 Extreme Networks Inc. All rights reserved. Page 2
  • 3. Evolution of Computing Environments Mainframe Mini Personal Cloud computing Computer Computer Evolution timeline © 2009 Extreme Networks, Inc. All rights reserved. Page 3
  • 4. Enabling the New Data Center: The Promise of Virtualization  Consolidation  Cost  Power  Elasticity  Hardware Independence  Location Independence  Dynamism  Load Balancing  Power Management  Simplified Management  On Demand Application Provisioning © 2009 Extreme Networks, Inc. All rights reserved. Page 5
  • 5. The Networking Challenges © 2009 Extreme Networks, Inc. All rights reserved.
  • 6. The Dissolving Network Edge  Network boundary between Server edge switch and server has VM VM VM VM blurred VSwitch Server  Switching at multiple levels  Virtual switch NIC  Network switch  Switching in NIC cards  Distributed virtual switches Edge Aggregation  Co-existence of different virtual switch models a challenge Core © 2009 Extreme Networks, Inc. All rights reserved. Page 7
  • 7. The Departmental Divide  Who owns the networking configuration?  Server and network administrators traditionally distinct  Server administrators not skilled at network configuration  Dealing with inconsistencies in server and network configuration  Increased likelihood of errors  Troubleshooting, maintenance require direct coordination across groups  Shifting locus of control © 2009 Extreme Networks, Inc. All rights reserved. Page 8
  • 8. Dealing with Scale Adding Burden To the Administrator  Multiple network devices per server  Multiple virtual switches  Switching in NIC cards  Blade switches  Increasein the magnitude of managed end points  Application-driven heterogeneity adds complexity  VMware, Microsoft, Citrix © 2009 Extreme Networks, Inc. All rights reserved. Page 9
  • 9. VM Mobility Force-Fitting Dynamism onto a Static Network  VMMobility requires network Core configuration to follow VMs  VLAN, QoS, ACLs, Rate Limiting tied to VM, not network port Edge Edge  Best practices are conflicting  Flat L2 versus segmented NIC NIC  Requirescoordination Vswitch Vswitch between server & network administrators VM VM  Automated and dynamic VM migration Server Server © 2009 Extreme Networks, Inc. All rights reserved. Page 10
  • 10. Dynamic Resource Management VM Load Balancing  Based on CPU, Memory, NIC utilization  No visibility into network congestion  Requires uniform network policies Power Management  Bring the network into the equation  Optimize the power savings © 2009 Extreme Networks, Inc. All rights reserved. Page 11
  • 11. Security in a Virtualized World  Compliance  No separation by default  Audit trail, reporting and compliance need to be revisited  Dealing with VM Sprawl  Dormant VMs pose an exploitable threat  PatchManagement  Needs to be dealt with at a VM level  Dealing with network security within the server  Lack of visibility into inter-VM traffic  Firewall, IDS/IPS for inter-VM traffic © 2009 Extreme Networks, Inc. All rights reserved. Page 12
  • 12. The Solution Framework © 2009 Extreme Networks, Inc. All rights reserved.
  • 13. Evolving the Network Simple Efficient Automated Customized Configuration, XML-enabled Bandwidth and Provisioning, Infrastructure Performance Event Detection and Scripting and Integration with Widgets VM Platforms Response Networking Density Deep Insight Provision 1000s of Switches and Broad Fixed and across Multiple Control of Modular Sites Infrastructure Platforms Heterogeneous Application Program & (Best of Breed) Awareness & Application support for Robust and Support Integration Virtual Flexible Machines Stacking Vendor differentiation Value to the Data Center © 2009 Extreme Networks, Inc. All rights reserved. Page 14
  • 14. Orchestration Bringing it together: Tying together the network, storage, and servers • Network management tools to provide complete network view • Not just configuration • Real time statistics and status monitoring • IP, MAC, Identity and location information • Integration into third party tools • XML based APIs • Smart provisioning of resources • Power, load balancing and security • Reduced need for co-ordination • Consistent application of policies Extreme Networks Confidential and Proprietary. Page 18 © 2009 Extreme Networks Inc. All rights reserved.
  • 15. Building A Smarter, Greener Data Center Depending on the network  Leverage mature network functionality  Use network switches for advanced functionality  Wire speed  Sophisticated functionality  Predictable behavior  Customizable and automated  Keep Hypervisor simple  Continue to leverage current expertise and investment in network resources  Standards driving to this direction  VEPA © 2009 Extreme Networks, Inc. All rights reserved. Page 19
  • 16. THANK YOU © 2009 Extreme Networks, Inc. All rights reserved.