Enable the Next Data Center Speed Class
Solution Briefs
Introduction
Recent 800 Gb Ethernet (GE) technologies based on 112 Gb electrical lane signaling rates have exponentially increased the level of complexity for developing stable port electronics in networking devices. The challenge is to characterize and quantify the bit error ratio (BER) and forward error correction (FEC) performance of different devices. Quickly identifying the BER and FEC performance problems of 800GE, 400GE, 200GE, and 100GE is critical, as answers are complex and time-consuming to find.
Use Case Summary
Forward error correction is an advanced coding technique that sends the required information to correct errors through the link along with the payload data. The benefit of forward in FEC is that there is no need to retransmit information to correct errors detected at the receiver. The FEC technique controls errors in data transmissions over unreliable or noisy channels. The forward error correction transforms transmitted data (message sequences) into code words that include redundant data. The receiver decoder uses the added redundancy to detect and correct errors that may occur in the message, minimizing the need for retransmission.
The key measurements affected by FEC test implications include the transmitter (Tx), and receiver (Rx) burst error counting and analysis. Testing with stressed FEC-encoded data and measuring BER in links that do not run error-free by design is challenging but important.
Solution Overview
The Keysight high data rate multiple channel FEC test solution gives you visibility into all Ethernet lanes. The platform detects and correlates meaningful errors in minutes to achieve the best performance and enables hyperscale data center providers to evaluate interoperability and FEC performance.
Learn more at: Enabling Breakthroughs in Terabit Research – Application Note
Summary
• Recent 800 Gigabit Ethernet (GE) technologies based on the 112Gb electrical lane signaling rates have exponentially increased the level of complexity for the development of stable port electronics in all networking devices.
• Finding problems faster and earlier in the 800GE development cycle requires a full characterization of actual bit error ratio (BER) and forward error correction (FEC) performance.
• You need a simplified, affordable BERT and FEC test system.
For more information: 800GE FEC Analysis