Cisco StackWise-480 3-Meter InfiniBand Cable

Cisco StackWise‑480 3‑Meter InfiniBand Cable

The StackWise‑480 3‑Meter InfiniBand Cable is a dedicated interconnect designed to enable high‑performance stacking between Cisco Catalyst switches that support the StackWise‑480 technology. This cable provides a reliable, low‑latency link that allows multiple switches to operate as a single logical device, simplifying management and expanding port density.

Key Design Features

• Connector Type: Each end of the cable is fitted with a StackWise‑480 connector, engineered to mate seamlessly with the corresponding ports on supported Catalyst models. The connectors are rugged and designed for repeated insertions, ensuring long‑term durability.
• Length: The cable measures exactly 3 meters (118.1 inches). This length is optimal for most data center rack configurations, providing sufficient reach while minimizing signal attenuation.
• Port & Interface Compatibility: Both ends of the cable are dedicated to StackWise‑480 ports, guaranteeing that the cable can only be used for stacking purposes. This specificity eliminates confusion with other uplink or downlink connections.
• Signal Integrity: The cable is engineered to maintain high signal integrity across the entire 3‑meter span, supporting the rapid data rates required by InfiniBand and StackWise‑480 protocols.

Supported Cisco Catalyst Models

The Cisco StackWise‑480 3‑Meter InfiniBand Cable is compatible with a range of Catalyst switches that feature the StackWise‑480 stacking architecture. Notable models include:

• Catalyst 3850‑24
• Catalyst 3850‑48
• Other Catalyst series with dedicated StackWise‑480 ports (exact model list can be confirmed via Cisco documentation).

Installation and Usage Guidelines

1. Preparation: Ensure that the switches are powered down or in a safe state before connecting the cable to avoid accidental power cycling.
2. Connection: Insert one end of the cable into the StackWise‑480 port on the first switch, and the other end into the corresponding port on the second switch. The connectors click securely, indicating a proper fit.
3. Verification: After powering the switches back on, verify that the stacking link is recognized in the switch’s management interface. A healthy stack should display both switches as active members with synchronized configuration.
4. Troubleshooting: If the link fails to establish, check for bent pins, loose connections, or incompatible firmware versions. Re‑insert the cable and confirm that both ends are fully seated.

Performance Characteristics

The Cisco StackWise‑480 3‑Meter InfiniBand Cable supports the full bandwidth of the StackWise‑480 protocol, enabling:

• High‑speed data transfer between stacked switches.
• Low latency communication essential for time‑sensitive applications.
• Redundant stacking paths when paired with additional cables, enhancing fault tolerance.

Physical Build and Durability

This cable is constructed from high‑quality materials to withstand the rigors of data center environments:

• Shielding: The cable features robust shielding to protect against electromagnetic interference (EMI) and crosstalk, ensuring clean signal transmission.
• Strain Relief: Both connectors incorporate strain relief mechanisms that prevent damage from pulling or bending forces during installation or maintenance.
• Temperature Range: Designed to operate reliably within the typical data center temperature range, maintaining performance across varying environmental conditions.

Maintenance and Lifecycle Management

To preserve optimal performance over time, follow these best practices:

• Inspect connectors periodically for signs of wear or corrosion.
• Avoid excessive bending; if the cable must be routed around tight corners, use a gentle bend radius that does not exceed manufacturer specifications.
• Store unused cables in a dry environment to prevent moisture buildup.

Conclusion

The Cisco StackWise‑480 3‑Meter InfiniBand Cable is an essential component for building scalable, high‑performance switch stacks. Its precise connector design, optimal length, and robust construction make it a reliable choice for data center architects seeking to maximize port density while maintaining low latency and high throughput across stacked Cisco Catalyst switches.