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.

See also:

Z100 Loki: Ethernet Testing NRZ up to 100G

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

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.