Gartner Research

Network Security Architectures for Virtualized Data Centers

Published: 10 August 2015

ID: G00276988

Analyst(s): Joerg Fritsch

Summary

Virtual data centers offer new kinds of mobility and granularity of controls that can lead to radical changes in security zoning and application architecture. Security architects must base their choice on the security proposition and the maturity of the new technologies.

Table Of Contents

Comparison

  • Technology Maturity vs. Strength of Security Proposition
  • Security Properties of Overlay and Underlay Networks

Analysis

  • Virtualized Data Center Architectures
  • Overlay Networks
    • Visibility and Control Over East-West Network Traffic
    • Visibility and Control Over North-South Network Traffic
    • Support for VM Movement
    • Vendor Agnostic or Vendor Lock-In
    • Strength of Security Proposition: Overprotection or the End of Tier-Based Computing?
    • Separation of Duties
    • Complexity
    • Efficacy
    • Product Maturity
  • Programmable Fabrics
    • Visibility and Control Over East-West Network Traffic
    • Visibility and Control Over North-South Network Traffic
    • Response to Events
    • Vendor Agnostic or Vendor Lock-In
    • Strength of Security Proposition: Does It Enhance Data Center Security?
    • Separation of Duties
    • Complexity
    • Efficacy
    • Product Maturity
  • Host Agents

Guidance

  • "An Overlay Network Is Right for You If …"
    • You Want to Benefit From Tierless Architectures
    • You Determine That the Required Level of Control Granularity Is Inter-VM Traffic
    • You Favor an All-Inclusive Approach
  • "A Programmable Fabric Is Right for You If …"
    • You Need to Insert Advanced Security Services
    • You Do Not Have the Required Level of Trust in Your Hypervisor Environment
    • You Have Well-Running and Tested Controls
  • Determine the Architecture First, and Then Examine Security Vendor Offerings

The Details

  • Tabular Summaries of Selected Architectures

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