Z100 Loki

for testing Ethernet traffic of NRZ speeds: 10G / 25G / 40G / 50G / 100G

What is Z100 Loki?

In Nordic mythology, Loki is the god of mischief. In the world of Ethernet testing, Z100 Loki is an important part of the Xena product line, which is Xena’s Ethernet Traffic Generation & Analysis (TGA) solution.

Z100 Loki supports testing of NRZ-based Ethernet at data rates of 10G / 25G / 40G / 50G / 100G.

In the Xena line we also have Z10 Odin (NRZ testing 10Mbps to 10G), Z400 Thor (NRZ testing 10 to 100G and PAM4 testing 50G to 400G), and Z800 Freya (currently PAM4 testing 50G to 800G) and in the future also 1.6 Terabits.

Speeds and technology

Z100 Loki uses NRZ technology. NRZ modulation has been used for Ethernet signals sent over data lines for many years. NRZ stands for “non-return to zero” – a modulation technique for serial communications that uses two voltage levels to represent logic 0 and logic 1. Z100 Loki supports Ethernet testing of NRZ data rates of 10G / 25G / 40G / 50G / 100G.


There is currently only one Z100 Loki test module (see table below). It is available in Xena’s fixed 1U chassis: the XenaCompact. Or it can be used in the modular 4U XenaBay chassis.


All Xena solutions include user-friendly software to make it quick and easy to perform a multitude of relevant performance, QA, compliancy and functional testing: XenaManager, applications for automated RFC 2544, Y.1564, RFC 2889 and RFC 3918 testing, Xena OpenAutomation and XenaTimeSynch.

Z100q Loki
Interfaces2 QSFP28
Ports x Speeds2 x 100GBASE-SR4/LR4/CR4
or 4 x 50GBASE-SR2/LR2/CR2
or 2 x 40GBASE-SR4/LR4/CR4
or 8 x 25GBASE-SR/LR/CR
or 8 x 10GBASE-SR/CR
Xena 100Gbps Ethernet Traffic Generator

Add Impairment Emulation with E100 Chimera

Many factors can impede data traffic as it crosses different networks. Network emulators are a cost-effective tool for helping verify if equipment can handle real-world conditions. That’s why the Xena Ethernet Test Platform also includes the E100 Chimera, a network emulation test module that makes it easy to emulate multiple forms of latency, jitter and other forms of impairment to Ethernet traffic.

E100 Chimera supports full wire-speed impairment at five speeds up to 100Gbps and works seamlessly with Xena traffic generators, allowing you to both generate and impair traffic via the same XenaManager GUI – a feature unique to the Xena platform.

Types of Impairment
Latency/JitterPacket ImpairmentsFlexible Distributions
Constant delay
Accumulate and burst
Step delay
Gaussian / Gamma / Poisson Jitter
Custom Jitter
Corruption (ETH, IP, UDP, TCP)
Gaussian, Gamma, Poisson
Burst drop (random / fixed)
Bit Error Rate
Custom Distributions
BW ShapingPort Impairments Misc. Features
Input policing
Output shaping
Optical link flap
Logical link flap
PMA error pulse injection
syncE (Tx follow recovered clk)

Try it now:

Fill in the form below and we will send you a link where you can download the latest version of Xena. We’ll include instructions on how to install and connect to Xena’s live demo system which consists of two XenaBay chassis connected to various switches and routers.

  • Shortly after submitting this form, you will receive an email with files and instructions on how you begin your Xena demo.