Cisco APIC Layer 2 Networking Configuration Guide, Release 6.2(x)

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Cisco APIC Layer 2 Networking Configuration Guide, Release 6.2(x)

SAN A/B separation

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Provides high availability for storage area network connectivity by ensuring that fabric components remain operational during a failure. This separation is implemented through physical or logical isolation of VSANs across the fabric.


SAN A/B separation is a redundancy strategy that maintains network connectivity by isolating fabric components.

  • Ensures continuous availability if a single fabric component fails.

  • Supports implementation through physical or logical separation.

  • Utilizes VSAN isolation to maintain distinct traffic paths across the fabric.

SAN A/B separation visuals

The following figure illustrates the architecture of SAN A/B separation.

Figure 1. SAN A/B Separation