25Gb Ethernet

25Gb Ethernet

While 10Gb Ethernet (10GbE) technology is fine for many existing deployments, it does not deliver the bandwidth required by cloud and Web-scale environments efficiently.

25Gbps Ethernet: Accelerated Network Performance and Lower Costs


To address high performance network and scalability required by next generation cloud and Web-scale environments, QLogic joined industry leaders in the 25 Gigabit Ethernet Consortium, which adopted a specification for single-lane 25GbE and dual-lane 50GbE links. As a result of industry demand, the Institute of Electrical and Electronics Engineers (IEEE) also unanimously agreed to support the development of 25GbE standards for servers and switching. 25GbE standards leverage existing 100GbE standards (IEEE 802.3bj) that are based on four 25GbE lanes.

QLogic has made 25GbE a reality with QLogic FastLinQ™ QL45211HLCU (single-port) and QL45212HLCU (dual-port) Intelligent Ethernet Adapters. These adapters are part of the fifth generation of QLogic high performance adapters that will include a family of 10/25/40/50/100GbE options.


Benefits of Deploying 25GbE:

  • Maximize Performance and Scalability
    Web-scale and cloud organizations can enjoy 2.5x the throughput per lane vs. 10GbE. Since 25GbE is delivered across a single-lane, it provides greater switch port density and network scalability compared to 40GbE, which uses four lanes.
  • Lower Capital and Operating Expenses
    Deploying 25GbE networks enables organizations to significantly reduce the required number of switches and cables, along with savings for space, power and cooling compared to 10GbE and 40GbE. Fewer network components also reduce ongoing management and maintenance costs.
  • Future Upgrade Path
    QLogic 25GbE Intelligent Ethernet Adapters are standards-based, ensuring interoperability with a wide range of network solutions, while providing an easy upgrade path to 100GbE networks that use multiple 25GbE lanes.

Learn More About 25GbE:


>> View QLogic Overview of 2550100

>> Visit Alliance Website

>> Visit Consortium Website


>> View Reference Architectures