Extreme Networks SFP28 Module

The Extreme Networks SFP28 Module is a high-performance, plug-and-play transceiver designed to elevate data center and campus network performance. Engineered for 25GBase-SR deployments over multimode fiber, it delivers reliable, low-latency connections between switches, servers, and storage devices. With a compact SFP28 form factor and an LC duplex interface, this optical transceiver is an excellent choice for upgrading uplinks, inter-switch links, and high-bandwidth server connections while preserving investment in existing fiber infrastructure.

• High-speed 25GBase-SR capability: This transceiver supports up to 25 Gbps data rates, enabling next-generation uplinks and server-to-network connectivity for demanding workloads such as virtualization, AI, analytics, and real-time data processing.
• 850 nm VCSEL with multimode fiber: Optimized for short-reach connections over multi-mode fiber, providing robust performance with low overhead and straightforward installation in typical data center racks and edge deployments.
• LC duplex optical interface: A standard and widely-supported connector type that simplifies patching and integration with a wide range of Extreme Networks and third-party devices.
• Maximum link distance up to 100 meters (328.08 ft): Perfect for data center-to-rack or campus backbones where compact, high-speed links are essential and cabling is tightly managed.
• Reliable, plug-and-play operation: Designed for seamless hot-swapping and compatibility with Extreme Networks infrastructure, reducing downtime and enabling rapid capacity expansion without forklift upgrades.

Technical Details of Extreme Networks SFP28 Module

• Product family: SFP28 optical transceiver
• Data rate: 25 Gbps (25GBase-SR)
• Wavelength: 850 nm
• Fiber type: Multi-mode fiber (MMF)
• Connector: LC duplex
• Maximum distance: Up to 100 meters (328.08 ft) on MMF
• Form factor: SFP28 module designed for deployment in compatible switch and router slots
• Applications: Data networking, data center uplinks, inter-switch links, server-to-AI/ML acceleration and storage connectivity
• Compatibility: Optimized for Extreme Networks devices and broadly compatible with other vendors’ equipment that supports SFP28 SR transceivers

how to install Extreme Networks SFP28 Module

• Power down or ensure proper hot-swap procedure per your device’s guidelines before attempting to insert the SFP28 module. Although many SFP28 devices support hot-swapping, following the safe-handling protocol protects both the transceiver and the host equipment.
• Carefully align the module with the SFP28 slot on the switch, router, or network appliance. Gently insert until it clicks into place and the module is seated firmly; avoid applying sideways pressure that could bend pins or damage the connector.
• Attach a multimode fiber patch cable with LC connectors to the LC duplex receptacles on the module. Ensure the fiber type (OM1/OM2/OM3/OM4 as appropriate for your link budget) is compatible with the intended distance and network design.
• Connect the other end of the fiber patch to the corresponding SFP28 port or transceiver on the receiving device, taking care to maintain proper polarity and duplex alignment to prevent mislink or reflection issues.
• Power up the device (or resume operation after hot-swap) and verify the link status using the device’s management interface or CLI. Confirm a stable link with the expected speed (25G) and verify error counters are within acceptable ranges for your environment.
• Monitor the link performance over time and adjust QoS, VLANs, and routing policies as needed to optimize traffic flows across the new 25GBase-SR link. If link instability occurs, recheck fiber cleanliness, connectors, and fiber routing to minimize bend radius and mechanical stress.

Frequently asked questions

Q: What is the Extreme Networks SFP28 Module? The Extreme Networks SFP28 Module is a 25GBase-SR optical transceiver designed for high-speed data networking over multimode fiber. It uses an LC duplex interface and supports data rates up to 25 Gbps, enabling efficient uplinks and inter-switch connections in modern data centers and campus networks.

Q: What does 25GBase-SR mean? 25GBase-SR denotes a 25 Gbps short-reach transceiver that uses an 850 nm VCSEL transmitter and multimode fiber. It's optimized for relatively short distances within data centers and campus environments, typically up to 100 meters on multimode fiber, depending on fiber type and link design.

Q: What fiber type and connectors does this module use? The module is designed for multimode fiber (MMF) with LC duplex connectors. Ensure your fiber patch cables and MTP-to-LC adapters (if used) are compatible with the OM grade and distance requirements of your deployment.

Q: How far can I run this 25GBase-SR transceiver? The maximum specified distance is up to 100 meters (328.08 feet) on multimode fiber. Actual reachable distance depends on fiber type (OM1/OM2/OM3/OM4), installation environment, and optical link budget calculations.

Q: Is this transceiver compatible with non-Extreme Networks equipment? The SFP28 form factor and 25GBase-SR interface are widely supported by many vendors, provided the devices accept SFP28 SR modules. For optimal performance and reliability, check compatibility lists or perform a quick interoperability test in a controlled environment.

Q: How do I troubleshoot a non-link issue? Start by verifying the fiber integrity and connectors are clean and properly seated. Confirm the link partner supports 25G and SR operation, check that both ends are configured for the same speed and duplex settings, inspect serial console logs for errors, and ensure there is no excessive fiber bending or contamination along the optical path.