Valkyrie Knowledge Base

Chassis & Software

This FAQ page deals with questions related to test chassis and software.

Q: Which OS does ValkyrieManager run on?
A: The ValkyrieManager software requires at least Windows XP with Service Pack 3 or later. It also requires the Microsoft .NET Framework 4.0.

Q: Are Xena testers field upgradeable to future product releases?
A: Yes, the Xena testers are fully upgradeable to future product releases. Both the embedded software and the integrated test modules can be upgraded from the ValkyrieManager. If the upgrade includes a test module upgrade, the upgrade process requires a power cycle of the test unit.

Q: How do I change the chassis IP address?
A: The chassis management port is configured with a static IPv4 address (factory preset to The management port’s IP address can be changed from the ValkyrieManager. For detailed instructions, refer to Valkyrie Quick Start guide .

Q: I have forgotten the chassis IP address. What do I do?
A: If you forget the IP address of the chassis you need another way to get in touch with the chassis. This is done by making a point-to-point connection from your PC to the “Ext” Ethernet port that is positioned to the right of the “Mgmt” port on the chassis front panel.

The “Ext” port is pre-configured with the following IP setup:

Address =
Subnet =
Gateway = none
You must configure your PC port statically to an IP address in the 172.16.255.x range, and then you will be able to PING the chassis again. Now start the Manager, and connect to the chassis using address

Under CHASSIS PROPERTIES you can now see which IP address is configured for the “Mgmt” port, and you can reserve the chassis and change it if necessary.

Note that the IP configuration of the “Ext” port cannot be changed, and that you should not configure the “Mgmt” port to use this subnet.

Q: I have forgotten the password to my tester, how do I log on?
A:  In the first two minutes after the tester has booted (when the test-port LEDs start flashing) you can use the chassis serial number as the password. You can see the serial number on the label on the back of the chassis. Once logged on, set the password.

Q: Why do the test port LEDs start blinking after power-on and reboot?
A: Following reboot or power-on, the test port LEDs will start blinking after 2-3 minutes. This indicates that the tester is ready and now accepts ValkyrieManager or scripting TCP/IP connections. When the first connection is made the LEDs revert to indicating link-sync status for each test port.

Q: Is the test module inside a ValkyrieCompact identical to the ValkyrieBay test modules?
A: Yes, a ValkyrieCompact tester is functionally identical to a ValkyrieBay tester – just with fewer test modules.

Q: Are XFP/SFP+/SFP transceiver plug-in modules hot-swappable?
A: The tester should be powered off when changing transceiver plug-in modules. Inserting or removing them with power on will not cause damage, but the tester will not detect any changes until it is re-booted or power-cycled.

Q: Why do I get an error saying “Application failed to initialize (0xc0000135)” when I start ValkyrieManager?
A: You need to download and install the Microsoft .NET Framework 4.0 or later from

Q: Why do I get an error saying “To run this application, you must first install one of the following versions of the .NET framework: <version>” when I start ValkyrieManager?
A: You need to download and install the Microsoft .NET Framework 4.0 or later from

Q: Why are the 10 Gbps XFP and SFP+ test modules factory equipped with optical transceiver plug-in modules?
A: All optical 10 Gbps test modules are sold equipped with optical transceiver modules. Xena’s production and quality control is performed with the tester fully equipped with optical modules, to eliminate any possibility of errors caused by transceivers plug-in modules of poor quality.

Xena uses quality optical modules from the German manufacturer MergeOptics (formerly known as Infineon), and resells these optical modules at a very competitive price (at or below cost), when sold together with a Xena test module.

Q: Can I daisy-chain multiple ValkyrieCompact testers into a single logical test unit?
A: No, ValkyrieCompact testers must be connected to individually by the ValkyrieManager and script environments.

Q: Which TCP ports are used by the Xena testers?
A: The test-based scripting API uses TCP port 22611. Xena tools such as ValkyrieManager and Valkyrie2544 uses TCP port 22606.

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