- Catherine
- September 11, 2023
- 9:02 am
FiberMall
Answered on 9:02 am
The difference between 100G-BIDI and 100G-SR1.2 is mainly in the number of optical lanes and the modulation solution. 100G-BIDI uses two optical lanes, one for each direction, over a duplex LC multi-mode fiber. 100G-SR1.2 uses four optical lanes, two for each direction, over the same fiber. 100G-BIDI uses NRZ (Non-Return-to-Zero) modulation, which means each bit is encoded as a single symbol. 100G-SR1.2 uses PAM4 (Pulse Amplitude Modulation) modulation, which means each symbol encodes two bits. PAM4 enables higher data rates with lower baud rates, but also introduces more noise and complexity. Both 100G-BIDI and 100G-SR1.2 are compliant to IEEE802.3bm 100GBASE-SR4 standard. The main advantage of 100G-BIDI is that it can reuse the existing 40G-BIDI infrastructure and reduce the fiber cabling cost. The main advantage of 100G-SR1.2 is that it can interoperate with 400G-SR4.2 and provide a future-proof solution for higher bandwidth demand.
Another difference between 100G-BIDI (100G-SRBD) and 100G-SR1.2 is the FEC (Forward Error Correction) used. 100G-BIDI (100G-SRBD) modules have been widely deployed for 100G operation over duplex MMF and use a FEC implementation that was developed prior to the IEEE standardization of KP-FEC for 50G PAM-4 based modules. Because of the differences in FEC implementation, 100G-SRBD and 100G-SR1.2 modules are not interoperable with each other.
People Also Ask
How to Extend the Life of GPU Servers?
Routine maintenance of GPU servers is critical to ensuring their stability and extending their service life. Here are some key maintenance details. Cleaning Exterior Cleaning: Clean the server housing regularly with a microfiber cloth to avoid dust accumulation. Do not use harsh cleaners. Internal cleaning: Clean the internal dust every 3-6 months,
NVIDIA HGX B300 Overview
The NVIDIA HGX B300 platform represents a significant advancement in our computing infrastructure. Notably, the latest variant—designated as the NVIDIA HGX B300 NVL16—indicates the number of compute chips interconnected via NVLink rather than merely reflecting the number of GPU packages. This nomenclature change underscores NVIDIA’s evolving approach toward interconnect performance
Optical Transceivers Overcome Heat
The rapid development of AI and large language models has led to a surge in demand for high-speed optical transceivers in data centers and AI cluster computers. As optical transceiver speeds scale from 100 Gbps (for entry-level data center applications) to 400 Gbps (widely used in current AI clusters), to 800
Exploring 10 GbE Switch: A Deep Dive into Ports, Copper, and Ethernet Switch Options
The adoption of 10 Gigabit Ethernet (10 GbE) solutions is primarily driven by the growing demand for 10 GbE switches, which offer improved bandwidth, lower latency, and faster data transfer, accompanied by massive growth in careers and personal life. The goal of this article is to inform readers about various
Understanding 10G Switches: The Future of Network Connectivity
The expansion of businesses and organizations into the digital world has significantly accelerated the need for high-speed, reliable, and scalable networks. The 10G switch is at the forefront of this evolution—an advanced networking device that addresses the increasing demand for rapid data transfers and improved connectivity. From overseeing vast enterprise
Understanding the Essentials of a Network Switch: Your Ultimate Guide
In contemporary networking, a device known as a network switch is fundamental as it enables communication between devices within an organization or in a home setup. If you are configuring a simple home network or managing a large-scale enterprise system, knowing the basics of how a network switch performs is
Related Articles
800G SR8 and 400G SR4 Optical Transceiver Modules Compatibility and Interconnection Test Report
Version Change Log Writer V0 Sample Test Cassie Test Purpose Test Objects：800G OSFP SR8/400G OSFP SR4/400G Q112 SR4. By conducting corresponding tests, the test parameters meet the relevant industry standards, and the test modules can be normally used for Nvidia (Mellanox) MQM9790 switch, Nvidia (Mellanox) ConnectX-7 network card and Nvidia (Mellanox) BlueField-3, laying a foundation for
How to Extend the Life of GPU Servers?
Routine maintenance of GPU servers is critical to ensuring their stability and extending their service life. Here are some key maintenance details. Cleaning Exterior Cleaning: Clean the server housing regularly with a microfiber cloth to avoid dust accumulation. Do not use harsh cleaners. Internal cleaning: Clean the internal dust every 3-6 months,
NVIDIA HGX B300 Overview
The NVIDIA HGX B300 platform represents a significant advancement in our computing infrastructure. Notably, the latest variant—designated as the NVIDIA HGX B300 NVL16—indicates the number of compute chips interconnected via NVLink rather than merely reflecting the number of GPU packages. This nomenclature change underscores NVIDIA’s evolving approach toward interconnect performance
Optical Transceivers Overcome Heat
The rapid development of AI and large language models has led to a surge in demand for high-speed optical transceivers in data centers and AI cluster computers. As optical transceiver speeds scale from 100 Gbps (for entry-level data center applications) to 400 Gbps (widely used in current AI clusters), to 800
Exploring 10 GbE Switch: A Deep Dive into Ports, Copper, and Ethernet Switch Options
The adoption of 10 Gigabit Ethernet (10 GbE) solutions is primarily driven by the growing demand for 10 GbE switches, which offer improved bandwidth, lower latency, and faster data transfer, accompanied by massive growth in careers and personal life. The goal of this article is to inform readers about various
Understanding 10G Switches: The Future of Network Connectivity
The expansion of businesses and organizations into the digital world has significantly accelerated the need for high-speed, reliable, and scalable networks. The 10G switch is at the forefront of this evolution—an advanced networking device that addresses the increasing demand for rapid data transfers and improved connectivity. From overseeing vast enterprise
Understanding the Essentials of a Network Switch: Your Ultimate Guide
In contemporary networking, a device known as a network switch is fundamental as it enables communication between devices within an organization or in a home setup. If you are configuring a simple home network or managing a large-scale enterprise system, knowing the basics of how a network switch performs is