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The industry's first dedicated 112G SerDes Auto-Negotiation & Link Training (AN/LT) test solution
The FreyaCompact AN/LT Test Appliance OSFP is designed specifically for Ethernet AN/LT testing at 56G/112G PAM4 SerDes speeds.
Ideally Auto-Negotiation & Link Training are initiated automatically, and the two devices run through the different states in the protocols to negotiate speed and tune to optimal settings. However not all endpoints behave the same and interpretations and implementations of the standards varies. Also, the quality of the AN/LT training results are not always consistent which can lead to erratic link stability.
The FreyaCompact AN/LT Test Appliance allows thorough testing of the endpoint behavior. It provides insight, visibility, and configuration possibilities to the AN and LT process making it easy to analyze DUT behavior during AN/LT, and configure and optimize the relevant AN parameters and LT coefficients.
Leveraging Xena’s award-winning Freya 800G test modules, the FreyaCompact AN/LT Test Appliance is a small 1U “desktop” tester that is easy to transport from site to site in a 19” flight case. It’s available in QSFP-DD (C-Freya-800G-ANLT) and OSFP (C-Freya-800G-ANLT-OSFP) versions.
The advanced AN/LT test capabilities can also be enabled on “standard” Freya modules using a dedicated AN/LT Test Appliance license “Freya-ANLT”.
Layer 1 Test Tools
The FreyaCompact AN/LT Test Appliance includes ValkyrieManager, Xena’s user-friendly management software which supports the same L1 features as the Freya test modules incl.: PRBS, single stream TGA for PHY/PCS testing, Advanced PMA and PCS/FEC Error Injection, lane skewing & swapping, and ppm sweeping.
Also included is the Xena OpenAutomation (XOA) AN/LT Test Utility and the AN/LT Protocol Test Suite for performance and conformance testing.
The Xena OpenAutomation (XOA) AN/LT Test Utility is a command line tool for Interactive AN/LT Protocol Testing with single stepping of the LT protocol towards the DUT while providing statistics and logging.
The Xena OpenAutomation (XOA) AN/LT Test Suite is designed for performance and compliance testing. It can be orchestrated from third party analyzers or automation systems through its REST API or run as a stand-alone application together with the XOA AN/LT Test Suite Application.
OSFP: 800G, 400G, 200G, 100G, 50G Ethernet
1x800G, 2x400G, 4x200G, 8x100G and 8x50G Ethernet
Power capacity per cage: 25W.
RS-FEC (Reed Solomon) (544,514,t=15), IEEE 802.3 Clause 119, Clause 134
Link state, FCS errors, error injections, RX and TX Mbit/s, packets/s, packets, bytes
Configurable from 16 to 56 bytes, default is 20B (12B IFG + 8B preamble)
Ability to adjust the effective line rate by forcing idle gaps equivalent to -1000 ppm (increments of 10 ppm)
From -400 to 400 ppm in steps of 1 ppm
Configurable linear or step sweep +/- 400 ppm
System is fully field upgradeable to product releases (FPGA images and software)
PRBS pattern loss, link sync loss
Bit-errors: seconds, count, rate
User-defined skew insertion per Tx virtual lane, and user-defined virtual lane to SerDes mapping for testing of the Rx PCS virtual lane re-order function
Relative virtual lane order and relative skew measurements (up to 2048 bits)
Corrected Bit error, Pre-FEC
Total corrected FEC symbols, Total uncorrected FEC symbols, Estimated Pre-FEC BER, Estimated Post-FEC BER, Pre-FEC Error Distribution Graph
Single short or repeatable link down events with ms precision
Repeatable (burst) error inject periods at PMA layer with ms precision and configurable BER
Deterministic injection of symbol errors in FEC codewords
Generation of sequences of FEC codewords with deterministic error distribution
Command line tool for Interactive AN/LT Protocol Testing with single step of the LT protocol towards DUT with Xena Open Automation (XOA) AN/LT Test Utility
Can be performed with Xena OpenAutomation (XOA) AN/LT Test Suite, or orchestrated from third party analyzers or automation systems
Tx Transmit Equalization Controls
Auto-Tune or manual control of Rx equalizer (FFE/DFE/CTLE)
Wire-speed packet generation
TX Mbit/s, packets/s, packets, bytes, FCS error
Burst size and density can be specified. Uniform and bursty bandwidth profile streams can be interleaved.
Fixed, random, butterfly, and incrementing packet length distributions from 56 to 12288 bytes
Repeated user specified 1 to 18B pattern, an 8-bit incrementing pattern
Normal (stream interleaved mode) – standard scheduling mode, precise rates, minor variation in packet inter-frame gap.
RX Mbit/s, packets/s, packets, bytes
Initial Accuracy is 3 ppm
Frequency drift over 1st year: +/- 3 ppm (over 15 years: +/- 15 ppm)
Temperature Stability: +/- 20 ppm (Total Stability is +/- 35 ppm)
2A with 120V supply, and 1A with 240V supply
16.5 lbs (7.5 kg)
Operating Temperature: 10° to 35° C
Storage Temperature: -40° to 70° C
Humidity: 8% to 90% non-condensing
W: 19” (48.26 cm)
H: 1.75” (4.45 cm)
D: 15” (37 cm)
FCC (US), CE (Europe)