[Valkyrie White Papers] Stateless Ethernet Traffic Generation and Analysis

Introducing Xena PHY for Layer 1 Testing of 112G SerDes

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

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 .

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.

Time Synchronization

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

This White Paper explains how Xena is working with the Open Platform for NFV (OPNFV) community on the vSwitch Performance (VSPerf) project towards a generic architecture-agnostic vSwitch performance benchmarking and test framework.

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.

The quest for signal integrity when testing 400G using 112Gbps SerDes White Paper

Testing 400GE using 112Gbps SerDes

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

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.

Terabit Ethernet - How?

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.

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.

Quality Assurance Testing

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

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.

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.

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.

OpenFlow®

Learn about OpenFlow performance testing and how Xena's Valkyrie platforms are used to verify OpenFlow performance of switches in SW-defined networks.

Microburst

Microbursts – where data packets are transmitted in rapid bursts – can lead to periods of full line-rate transmission that overflow packet buffers of the network stack. This can seriously impact network performance but the problem is difficult to detect.

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.

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.

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.