Gartner Research

Connecting Multiple Data Centers and Clouds via Data Center Interconnect

Published: 06 February 2014

ID: G00258113

Analyst(s): Simon Richard

Summary

Cloud services, workload mobility, distributed active-active applications, network virtualization, SDN and protocols that extend VLANs across IPs are spurring organizations to revisit their DCI architectures. This DCI assessment provides Gartner recommendations for enterprise DCIs.

Table Of Contents

Summary of Findings

Comparison

  • Use Cases
  • Approaches to DCI
    • Dark Fiber or OTS
    • Carrier Ethernet Services
    • VPLS- or EVPN-based
    • Shared Layer 3 Service (MPLS, Internet)
    • MAC Over IP
    • Network Virtualization
  • DCI Approaches: Pros and Cons

Analysis

  • DCI in the Limelight
  • Technical Factors and Constraints That Will Influence the DCI Solution
    • IT Service Availability Model
    • Number of Data Centers
    • Distance Between Data Centers
    • Transport Attributes
    • Data Replication Approach
    • WAN Path Isolation
    • Hybrid Cloud Connectivity
    • Need for Layer 2 Extension
  • DCI Environment Components
    • User to Service
    • DCI Access
    • DCI Link
    • VLAN Stretching
  • Comparing DCI Approaches
    • Optical Transport Services
    • Ethernet Services
    • VPLS or EVPN
    • Shared Layer 3 Service (Internet and MPLS)
    • MAC Over IP
    • Network Virtualization

Evidence

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