Cisco SFP-10G-LR
10GBASE-LR SFP Module, Original Cisco
Product Highlights
When your network demands reliable 10 Gigabit Ethernet connectivity across campus buildings, data center floors, or metropolitan access rings, the Cisco SFP-10G-LR delivers the performance and reach you need without compromise.
The SFP-10G-LR is an original Cisco 10GBASE-LR SFP+ transceiver module engineered for long-range data transmission over single-mode fiber (SMF, G.652). Operating at a 1310 nm wavelength, it supports link lengths of up to 10 kilometers at a data rate of 10 Gbps — making it the go-to optic for inter-building backbone links, campus distribution uplinks, and service provider transport applications.
Designed as a hot-swappable plug-in module, the SFP-10G-LR can be installed or replaced in any compatible Cisco SFP+ port without disrupting network traffic. Built-in Digital Optical Monitoring (DOM) provides real-time visibility into critical parameters such as optical output power, received power, temperature, laser bias current, and supply voltage — enabling proactive troubleshooting and preventive maintenance. The module also features Cisco's quality identification (ID) technology, allowing Cisco platforms to verify that the transceiver is genuine and certified.
As a C-class (non-S-class) module, the SFP-10G-LR supports multiple protocols including Ethernet, OTN, and WAN-PHY, and offers optical interoperability with legacy 10GBASE XENPAK, X2, and XFP interfaces on the same link. Whether you're upgrading an enterprise campus, scaling a data center interconnect, or extending a metro network, the Cisco SFP-10G-LR provides the proven reliability and broad platform compatibility that IT teams depend on.
Features & Benefits
Long-Range 10G Connectivity
The SFP-10G-LR supports link lengths of up to 10 km on standard single-mode fiber (G.652) at 1310 nm. This makes it ideal for connecting buildings across a campus, linking data center halls, or establishing metro-access connections — all at full 10 Gbps line rate with no performance degradation over distance.
Hot-Swappable SFP+ Design
The module plugs directly into any compatible SFP+ port and can be installed or removed without powering down the host device. This hot-swap capability minimizes maintenance windows and ensures maximum network uptime during upgrades or replacements.
Digital Optical Monitoring (DOM)
Integrated DOM provides real-time monitoring of five critical parameters: temperature, supply voltage, laser bias current, TX output power, and RX received power. Network administrators can leverage DOM data through SNMP-based management tools to detect degradation early, troubleshoot link issues faster, and plan preventive maintenance before failures occur.
Multi-Protocol & Optical Interoperability
As a Cisco C-class transceiver, the SFP-10G-LR supports Ethernet, OTN, and WAN-PHY protocols, giving you flexibility across diverse network architectures. It also provides optical interoperability with 10GBASE XENPAK, X2, and XFP interfaces on the same link — protecting your investment during phased migrations from older 10G form factors.
Cisco Quality Identification
The Cisco quality ID feature enables Cisco switches and routers to verify that the module is genuine, certified, and tested by Cisco. This ensures full platform support, consistent performance, and eligibility for Cisco TAC assistance — giving you confidence in every deployment.
Pay-As-You-Populate Scalability
SFP+ modules support a pay-as-you-populate model, allowing you to add 10G ports incrementally as your bandwidth needs grow. This protects your initial investment and simplifies technology migration by letting you scale capacity on your own timeline.
Deployment Scenarios
Campus Backbone & Building-to-Building Links
Connect distribution and core switches across campus buildings with 10 Gbps links over single-mode fiber runs up to 10 km. The SFP-10G-LR eliminates bandwidth bottlenecks between buildings while leveraging existing SMF infrastructure.
Data Center Interconnect (DCI)
Establish high-speed 10G links between data center halls, floors, or nearby facilities. The module's long reach and DOM diagnostics ensure reliable, monitorable connectivity for east-west and north-south traffic flows.
Metro-Access & Service Provider Transport
Deploy the SFP-10G-LR in service provider edge routers and aggregation switches for metro-access rings and last-mile transport. Multi-protocol support (Ethernet, OTN, WAN-PHY) provides the flexibility needed in carrier-grade environments.
Enterprise Wiring Closet Uplinks
Use the SFP-10G-LR for 10G uplinks from access-layer switches in wiring closets back to distribution or core switches. The hot-swappable design and DOM support simplify deployment and ongoing management across large-scale enterprise networks.
General
Performance
Optical
Physical
Environmental
Compliance
Compatibility Notes
The Cisco SFP-10G-LR is supported on a wide range of Cisco switches and routers, including platforms in the Catalyst, Nexus, ASR, ISR, and UCS families. Not all platforms support every SFP+ module. Always consult the Cisco 10 Gigabit Ethernet Transceiver Modules Compatibility Matrix for the definitive list of supported platforms and minimum required software versions.
Connector Note: Only patch cords with PC or UPC connectors are supported. APC connectors are not supported.
Minimum Cabling Distance: 2 meters, per IEEE 802.3ae.
Downloads & Resources
Frequently Asked Questions
| Part Number | Product | Key Difference |
|---|---|---|
| SFP-10G-LR-S | Cisco 10GBASE-LR SFP+ S-Class | S-Class: lower cost, Ethernet-only (no OTN/WAN-PHY/FCoE), commercial temp range only — ideal for standard enterprise/data center deployments |
| SFP-10G-LR-X | Cisco 10GBASE-LR SFP+ Extended Temp | Extended temperature range (-5°C to 85°C) and multirate support (10GBASE-LR, 10GBASE-LW, OTU2/OTU2e) — for harsh or outdoor environments |
| SFP-10G-SR | Cisco 10GBASE-SR SFP+ | Short-range: 850 nm over multimode fiber, up to 300 m (OM3) / 400 m (OM4) — choose for intra-building or data center rack-to-rack links |
| SFP-10G-ER | Cisco 10GBASE-ER SFP+ | Extended reach: 1550 nm over single-mode fiber, up to 40 km — for metro or long-haul links exceeding 10 km |
