Reducing Network Tiers Flattening the Network. Kevin Ryan Director Data Center Solutions

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1 Reducing Tiers Flattening the Kevin Ryan Director Data Center Solutions

Data Center Trends The New Computer Data center capacity, not server capacity, is the new metric Consolidation High Computational Density Physical Location

2 Data Center Trends The New Computer Data center capacity, not server capacity, is the new metric Consolidation High Computational Density Physical Location Consolidation Green Efficient Power Management Virtualization On Demand Provisioning Hardware Independence / High Availability Location Independence / Storage Convergence

A Four Phase Solution Topology Reduce Tiers Integration with VM Platforms Profiles for VMs Provision 1,000s of Switches across Multiple Sites Direct Attach Automated Configuration User Generated

3 A Four Phase Solution Topology Reduce Tiers Integration with VM Platforms Profiles for VMs Provision 1,000s of Switches across Multiple Sites Direct Attach Automated Configuration User Generated Scripts Bandwidth and Performance Fixed and Modular Platforms Robust and Flexible Stacking Heterogeneous (Best-of-Breed) support for Virtual Machines management software, single pane of glass 1G 10G 40G 100G Application Awareness & Support XML-enabled Infrastructure Open APIs Program & Application Integration

4 A Four Phase Solution Topology Reduce Tiers Integration with VM Platforms Profiles for VMs Provision 1,000s of Switches across Multiple Sites Direct Attach Automated Configuration User Generated Scripts Bandwidth and Performance Fixed and Modular Platforms Robust and Flexible Stacking Heterogeneous (Best-of-Breed) support for Virtual Machines management software, single pane of glass 1G 10G 40G 100G Application Awareness & Support XML-enabled Infrastructure Open APIs Program & Application Integration

5 Some ing Challenges

adds: Oversubscription Latency Power Heterogeneity across and between switching tiers Management overhead

6 Architecture Challenges Growing Tiers from 2 or 3 to 5 Traditional network tiers Core, distribution, access Blade Switch Tier Typically used instead of pass through to address cabling challenges Virtual Switch Tier Each tier adds: Oversubscription Latency Power Heterogeneity across and between switching tiers Management overhead Conflicting best practices Flat Layer 2 versus segmented MAC address explosion Driven by Virtualization and flatter networks

7 Virtualization: A ing Problem boundary between switch and server has blurred Switching at multiple levels Virtual switch NIC cards Blade switches switches Distributed virtual switches Coexistence of different virtual switch models a challenge

The Direct Attach Data Center Virtualization and Blade switches have introduced complexity to the network Additional 1 or 2 tiers Connect servers directly into EoR chassis Leverage high fan out I/O

8 The Direct Attach Data Center Virtualization and Blade switches have introduced complexity to the network Additional 1 or 2 tiers Connect servers directly into EoR chassis Leverage high fan out I/O modules Leverage high-density MRJ21 connectors Eliminate blade switch Eliminate ToR switch Simplify cable management Collapse multiple tiers in the data center Reduce latency Reduce oversubscription Simplify management Reduce power

9 Standard Data Center Architecture Sample 12 Rack DC will have 5 Layers! Core Switch 384 vswitches 24 Blade Switches 12 TOR Switches Aggregation Switch 2 Agg Switches 2 Core Switches TOR Switch Blade Chassis Blade Chassis A total of 424 Switches!!! Blade Switch VSwitch VSwitch Blade Chassis 12 Racks Blade Chassis VM VM 384 Blade Servers

10 Server Virtualization: A ing Problem Who manages and troubleshoots the virtual switch? Vswitch tools owned by server administrators Requires networking expertise and network coordination Virtual switch heterogeneity leads to complexity Problem of scale Virtual switch in every server leads to explosion of managed switches in data center Troubleshooting and security challenges No network visibility into inter-vm traffic Inconsistency of policy between physical and virtual switches VM sprawl becoming a challenge VM1 vswitch VM2 Today s Inter-VM Switching Data Center Core

Direct Attach: Eliminate the vswitch Virtually Reducing Tiers

VM2 CPU and network utilization reverts to healthy.

gnome-system-monitor for network and CPU utilization hping to

11 Direct Attach: Eliminate the vswitch Virtually Reducing Tiers Inter-VM traffic is transmitted and received on the same network physical port. VM2 CPU and network utilization severely impacted, due to DoS attack. CLEAR-Flow enabled to dynamically provision/block DoS traffic. VM2 CPU and network utilization reverts to healthy. Direct Attach Enabled Switch Guest OS: Ubuntu Active applications: gnome-system-monitor for network and CPU utilization hping to generate DoS attack targeted at VM2 Guest OS: Ubuntu Active applications: gnome-system-monitor for network and CPU utilization tcpdump to monitor attack traffic from VM1 VM1 VM2 Host: Fedora 12 Hypervisor: QEMU-KVM

Direct Attach Physically Reducing Tiers High fan-out modules 96 ports on a single I/O module Up to 768 ports in one chassis No oversubscription Up to 128Gbs per

12 Direct Attach Physically Reducing Tiers High fan-out modules 96 ports on a single I/O module Up to 768 ports in one chassis No oversubscription Up to 128Gbs per slot MRJ 21 cabling 6:1 cabling reduction Go straight from Blade Server directly to Aggregation switch Eliminate multiple physical network tiers Blade switch ToR switch

13 A Four Phase Solution Topology Reduce Tiers Integration with VM Platforms Profiles for VMs Provision 1,000s of Switches across Multiple Sites Direct Attach Automated Configuration User Generated Scripts Bandwidth and Performance Fixed and Modular Platforms Robust and Flexible Stacking Heterogeneous (Best-of-Breed) support for Virtual Machines management software, single pane of glass 1G 10G 40G 100G Application Awareness & Support XML-enabled Infrastructure Open APIs Program & Application Integration

14 Forward-looking Statements This presentation contains forward-looking statements that involve risks and uncertainties, including statements regarding our expectations as to products, trends and our performance. There can be no assurances that any forward-looking statements will be achieved, and actual results could differ materially from forecasts and estimates. For factors that may affect our business and financial results please refer to our filings with the Securities and Exchange Commission, including, without limitation, under the captions: Management s Discussion and Analysis of Financial Condition and Results of Operations, and Risk Factors, which is on file with the Securities and Exchange Commission ( We undertake no obligation to update the forward-looking information in this release.

15 Thank You Kevin Ryan Director Data Center Solutions

The Role of Networking in a Virtualized World Sponsor Technology Roadmap. Kevin Ryan Director Data Center Solutions

The Role of Networking in a Virtualized World Sponsor Technology Roadmap Kevin Ryan Director Data Center Solutions www.extremenetworks.com Data Center Trends The New Computer Data center capacity, not