What Is the Cisco 8818-FC=? Features, Compatibility, and Deployment Best Practices


Understanding the Cisco 8818-FC=

The ​​Cisco 8818-FC=​​ is an ​​8Gbps Fibre Channel (FC) SFP+ transceiver​​ designed for Cisco MDS 9000 Series switches. It enables high-speed data transfers in storage area networks (SANs), supporting protocols like Fibre Channel over Ethernet (FCoE) for converged storage and IP networking. The “=” suffix denotes a Cisco-specific configuration, often indicating bundled licensing or compatibility requirements.


Core Technical Specifications

  • ​Data Rate​​: 8.5 Gbps, compliant with FC-PI-4 standards.
  • ​Wavelength​​: 850nm for short-range multimode fiber (SR-MMF) deployments.
  • ​Maximum Distance​​: 150 meters on OM3 fiber, 100 meters on OM2.
  • ​Compatibility​​: Exclusively works with Cisco MDS 9148S, 9250i, and 9396T switches.
  • ​Power Draw​​: 1.2W per port, optimized for energy efficiency.

How Does the 8818-FC= Compare to Newer 16G/32G Modules?

​Cost vs. Performance​​: While 16G/32G modules offer higher speeds, the 8818-FC= remains ​​cost-effective​​ for legacy 8G environments where upgrades are impractical.
​Ecosystem Integration​​: Unlike third-party SFPs, it avoids firmware conflicts and supports Cisco ​​DCNM (Data Center Network Manager)​​ for centralized monitoring.
​Use Case Alignment​​: Ideal for SMEs or enterprises with stable 8G SANs, whereas 16G+ suits data-heavy workloads like AI/ML storage.


Primary Applications

  • ​SAN Consolidation​​: Connects storage arrays to switches in virtualized environments.
  • ​Disaster Recovery​​: Provides redundant links for synchronous replication between data centers.
  • ​Mid-Tier Virtualization​​: Balances cost and performance for VMware/Hyper-V clusters.

Addressing Key Buyer Concerns

​Q​​: Is the 8818-FC= backward-compatible with 4G Fibre Channel switches?
​A​​: Yes, but speeds auto-negotiate to 4Gbps, limiting its utility in mixed environments.

​Q​​: Can it be used in non-Cisco switches?
​A​​: No—Cisco enforces hardware locking via ​​Smart Serial ID​​, blocking cross-vendor interoperability.

For verified modules, [“8818-FC=” link to (https://itmall.sale/product-category/cisco/) offers certified refurbished units with full diagnostics.


Final Perspective on Long-Term Viability

The 8818-FC=’s value lies in its ​​predictability​​ for organizations maintaining legacy SANs. While newer 16G/32G Fibre Channel dominates high-growth sectors, the 8G market persists in cost-sensitive or regulated industries. For teams avoiding forklift upgrades, this transceiver remains a pragmatic stopgap—provided Cisco’s end-of-support timelines align with their roadmap.

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