10GBASE-LR

Definition

10GBASE-LR is a standard for Ethernet networks that supports 10 Gigabit data transmission over long distances using single-mode fiber optics. It is defined by the IEEE 802.3ae standard and is designed for high-speed network applications, making it essential for modern data centers and telecommunications infrastructures.

5 Must Know Facts For Your Next Test

1. 10GBASE-LR operates at a wavelength of 1310 nanometers and can transmit data over distances up to 10 kilometers using single-mode fiber.
2. The standard uses a laser-based light source, specifically a distributed feedback (DFB) laser, which allows for high efficiency and reduced dispersion.
3. 10GBASE-LR is widely used in enterprise networks and data centers, facilitating high-speed connections between switches and routers over substantial distances.
4. The technology is part of the 10 Gigabit Ethernet family, which includes other standards like 10GBASE-SR for short-range connections over multimode fiber.
5. Deployment of 10GBASE-LR can significantly enhance network performance, providing the bandwidth necessary to handle large volumes of data traffic.

Review Questions

• How does 10GBASE-LR contribute to the efficiency of modern Ethernet networks?
  • 10GBASE-LR enhances the efficiency of modern Ethernet networks by allowing high-speed data transmission at 10 Gigabits per second over long distances of up to 10 kilometers. This capability is crucial for applications requiring significant bandwidth, such as data center interconnections and telecommunications. By utilizing single-mode fiber optics and advanced laser technology, it minimizes signal loss and ensures reliable performance, making it an essential component in high-demand network environments.
• Compare and contrast 10GBASE-LR with other Ethernet standards like 10GBASE-SR in terms of their applications and distance capabilities.
  • While both 10GBASE-LR and 10GBASE-SR support 10 Gigabit Ethernet, they are optimized for different use cases. 10GBASE-LR is designed for long-distance connections using single-mode fiber, capable of reaching up to 10 kilometers, making it ideal for wide area networks. In contrast, 10GBASE-SR operates over multimode fiber and is limited to shorter distances of around 300 meters. This makes SR suitable for short-range links within data centers, while LR is preferred for connecting remote sites or across buildings.
• Evaluate the impact of adopting 10GBASE-LR on network design strategies in large-scale organizations.
  • Adopting 10GBASE-LR significantly impacts network design strategies in large-scale organizations by enabling high-speed, long-distance connections that facilitate efficient data transfer across different locations. This capability allows organizations to streamline their infrastructure by consolidating resources and improving connectivity between remote offices and data centers. Moreover, the increased bandwidth supports growing data demands, enhances overall network performance, and future-proofs organizations against upcoming technology advancements. Therefore, leveraging 10GBASE-LR can lead to more flexible, scalable, and robust network architectures.

Related terms

Ethernet:

A family of networking technologies commonly used for local area networks (LANs) that enables devices to communicate through a protocol.

Single-mode Fiber: A type of optical fiber designed for long-distance communication, allowing the transmission of a single light mode and reducing signal loss.

IEEE 802.3ae: A standard developed by the Institute of Electrical and Electronics Engineers (IEEE) that specifies the technical requirements for 10 Gigabit Ethernet.