Xena Networks White Papers - Library of Free White Papers

PAM4 Auto-Neg & Link Training

Learn about Auto-Neg & Link Training on PAM4/NRZ and how Valkyrie can test these functions, together with Teledyne Lecroy's spectrum analyzer.

The new White Paper dives into the technical details. Called "Terabit Ethernet - How", it covers how Ethernet speeds beyond 400Gbps require changes to the Ethernet physical layer as well as the implications for first movers in this pre-IEEE standardization phase.

Plotting the Performance Landscape for SD-WAN

SD-WANs make it easier to centrally manage WANs spread across a wide area. Learn how Xena's traffic generation and analysis solutions are used to test and verify SD-WANs.

400GE

Learn about the new PAM4 400GE & 200GE data rates and how to verify the performance of network equipment capable of handling the new speeds.

Latency & Jitter

This White Paper clarifies terms used in time measurement e.g. latency, jitter, inter-frame gap, latency resolution, speed mismatch, latency over time, and distribution and presents how Xena interprets and implements time measurements.

Introducing Xena PHY for Layer 1 Testing of 112G SerDes

A new way to test Layer 1 features when using 112G SerDes PAM4

AN/LT for 112Gbps SerDes

Learn how AN/LT are key elements of Ethernet transmission over electrical connections and can reduce overall installation time and optimize the performance.

Cover Testing 400G using 112Gbps SerDes WP

Testing 400GE using 112Gbps SerDes

Here's how to test signal integrity of 400GE traffic using 112Gbps SerDes.

FP - How to test Active Electrical Cables WP

How to Test Electrical Cables Running 112G SerDes Ethernet

This White Paper explains how signal degradation can be prevented using equalizers and forward error correction algorithms, together with different cable types like DACs, ACCs and AECs .

Traffic Generator Upgrade

Learn how to extend the capabilities of your Valkyrie traffic generation and analysis solution using a L1 Matrix from CGS Tower Networks.

The Shared Lab Challenge

Learn more about how a Lab-as-a-Service solution will give users of shared labs an efficient and seamless way to utilize shared lab resources improving both CapEx and OpEx.

Terabit Ethernet - Why?

In this, the first of two White Papers exploring Terabit Ethernet, we look at the commercial factors driving the development of Terabit Ethernet and 800G.

IP Multicast

Learn about IP multicast and how Xena’s test solutions are used to verify IP multicast and IGMP performance in accordance with RFC 3918, and perform multicast stress testing and IGMP snooping verification.

DDoS

Going beyond generating DDoS traffic, Xena’s solutions can help companies test their security products and operators test networks and detect flaws, thereby ensuring business continuity and preserve business integrity.

Plotting the performance landscape for 5G RAN Packet Networks

In this white paper, we’ll look at why Ethernet impairment testing is crucial in developing, testing, and deploying successful 5G fronthaul networks.

5G Fronthaul Network Testing Considerations

This White Paper explains why Ethernet impairment testing is crucial in deploying 5G fronthaul networks, and highlights the protocols that need particular attention when optimizing your equipment or application performance in 5G fronthaul networks.

Production Line Testing

Any organization that produces Ethernet networking components will perform a variety of performance, functionality, and quality of service tests. While many of these tests take place at the R&D stage, companies that ...

Time Synchronization

Learn how ValkyrieTimeSynch is used for synchronizing test instruments in different locations using GPS, PTP and NTP.

100G PON

Xena's Valkyrie platform made it easy for BT to verify the performance of their new 100G PON solution. PON is an access network technology that ensures high-speed network access to business and private users.

Putting 2.5GE & 5GE to the Test

This White Paper examines the technical details of the new 2.5 & 5.0GE speeds and then presents Xena’s new Odin-10G-5S-6P-CU test module which can test both the new speeds plus 100Mbit/s, 1GE and 10GE.

Automotive Ethernet Testing

The automotive industry is finally going digital. Initiatives like the BroadR-Reach 100 Mbit/s Automotive Ethernet standard seek to minimize the weight and cost of electrical cabling – now the 3rd largest weight component.

The Case for 25GE & 100GE

Data centers are hungry for bandwidth but strapped for cash. Adding more 10GE equipment is a short-term solution but upgrading to 40/100GE is expensive.

Quality Assurance Testing

How Valkyrie can be used for Quality Assurance testing of Ethernet products up to Layer 3.

Quality of Service Validation

Xena offers QoS validation solutions in accordance with RFC 2544 and Y.1564, as well as advanced statistics functions that help users track, analyze and troubleshoot QoS to maintain a high service quality guarantee.

GPON Testing

Gigabit-capable Passive Optical Networks (GPON) support digital communication to end customers at rates up to 2.4 Gbps downstream and 1.2 Gbps (optionally 2.4 Gbps) upstream. A GPON requires active transmission equipment at its borders, and this equipment will of course need to be tested.

GPON Certification with LAN

This White Paper examines the background for BBF.247 testing and how LAN - the Laboratoire des Applications Numériques - uses Xena’s solutions for their formal certification process.

G.fast

G.fast is a next-gen DSL technology designed to seriously boost signal speeds to customer premises. Learn how Xena test solutions can be used to verify G.fast performance and conformance with Broadband Forum ID-337.

White Papers

Xena experts share their expertise on the industry’s hottest topics.