10GBASE-SR

Definition

10GBASE-SR is an Ethernet standard defined for 10 Gigabit Ethernet, specifically designed for short-range optical fiber connections. This standard enables high-speed data transmission over multimode fiber optic cables, making it ideal for data centers and high-performance networking environments. Its ability to support distances up to 400 meters on OM4 multimode fiber enhances its appeal in local area networks and data centers.

5 Must Know Facts For Your Next Test

1. 10GBASE-SR uses a wavelength of 850 nm, which is optimal for short-range optical transmissions.
2. This standard supports various connector types, including LC connectors, ensuring compatibility with different networking equipment.
3. 10GBASE-SR can transmit data over distances of up to 300 meters on OM3 multimode fiber and up to 400 meters on OM4 multimode fiber.
4. It is widely used in data centers for server-to-switch connectivity and inter-switch links due to its cost-effectiveness and performance.
5. The standard is part of the IEEE 802.3ae specification, which outlines the requirements and performance metrics for 10 Gigabit Ethernet technologies.

Review Questions

• How does 10GBASE-SR compare to other 10 Gigabit Ethernet standards in terms of distance and media type?
  • 10GBASE-SR is specifically designed for short-range applications using multimode fiber, allowing distances up to 400 meters on OM4 fiber. In contrast, standards like 10GBASE-LR use single-mode fiber and can reach distances up to 10 kilometers. This makes 10GBASE-SR ideal for data centers where shorter runs between devices are common, while other standards serve long-distance needs.
• What are the practical applications of 10GBASE-SR in modern networking environments?
  • 10GBASE-SR is primarily utilized in data centers for high-speed connections between servers and switches. Its capability to support high bandwidth over short distances makes it suitable for applications such as cloud computing, storage area networks, and video streaming services. Additionally, it is a cost-effective choice for local area networks where high-speed connectivity is crucial.
• Evaluate the significance of the wavelength used in 10GBASE-SR and its impact on network performance.
  • The use of an 850 nm wavelength in 10GBASE-SR is significant because it optimizes the transmission over multimode fibers by minimizing signal loss and maximizing performance over short distances. This wavelength allows multiple signals to be transmitted simultaneously through different modes within the fiber, enhancing bandwidth utilization. Understanding this wavelength's impact on performance helps network designers choose the right technology for specific applications, ensuring efficient data transfer in high-demand environments.

Related terms

Ethernet:

A family of networking technologies used for local area networks (LANs) that define wiring and signaling standards for the physical layer of the network.

Multimode Fiber: A type of optical fiber that allows multiple light modes to propagate, making it suitable for short-distance communication due to its larger core diameter.

10GBASE-LR:

Another Ethernet standard for 10 Gigabit Ethernet, but designed for long-range transmission over single-mode fiber with distances up to 10 kilometers.