Network Impairment Emulation

We’re competitive on price. We’re leaders in value.

Three years’ free software upgrades.

Three years’ free hardware warranty.

Free tech support – for the lifetime of the product.

Free online training.

You do the math.

About Chimera

Chimera is a network impairment emulator that makes it easy to introduce consistent, accurate, well-defined and repeatable impairments (e.g. packet manipulation, latency, jitter, bandwidth control and shaping) to traffic between DUTs in the lab. All rates from 10GE to 100GE are supported by a single 2-slot test module.

Chimera is ideal for NEMs who want to optimize Quality of Experience (QoE) for customers by ensuring their equipment can handle acceptable levels of impairment. Service providers, enterprises, and government agencies can also use Chimera to validate Quality of Service (QoS) for voice, video, and data traffic being sent across their networks.

Chimera can be used a “standalone” solution, but it can also be installed as a test module in a ValkyrieBay chassis for seamless integration with ValkyrieManager’s traffic generator. This provides a really simple way of emulating impairment to traffic being generated via Valkyrie all from the same GUI.

Chimera makes it easy to emulate network impairment, making it a extremely cost-effective and convenient solution for:

  • Benchmarking
  • Stress testing/ Negative testing
  • “What-if” testing
  • Regression testing

Used to emulate

Latency and jitter in Ethernet traffic

at 10GE, 25GE, 40GE, 50GE and 100GE


eCPRI for 5G applications

eCPRI does not provide end-to-end synchronization or guarantee zero loss. Using Chimera to emulate network impairment is a good solution for testing 5G network performance and robustness under real-world conditions.

System diagram

Chimera can function as a standalone traffic impairment emulator. Or it can be installed in a Valkyrie chassis to seamlessly add impairment to traffic (up to 100GE) being generated by the other Valkyrie test modules.


When a Chimera test module is installed in a ValkyrieBay chassis, ValkyrieManager detects its presence and makes the Chimera’s software options available for adding impairment. This makes it very easy for test engineers to emulate impairment via the same GUI they use for generating the stateless Ethernet traffic.

Chimera impairment flows

This diagram illustrates how the Chimera test module emulates impairment. Incoming traffic enters a flow filter and different types of impairment are then added (as defined in the UI), with each traffic flow being processed in a prioritized order.

Two hardware options

Both options below support impairment emulation at all rates from 10GE to 100GE via a single Chimera test module.

TEST MODULE (Chi-100G-5S-2P)

Chimera is currently available as a 2-slot test module for a ValkyrieBay chassis, the Val-C12-2400G, where ValkyrieManager is used to emulate impairment as part of it standard user-interface.


ChimeraCompact is a standalone version of Chimera where the test module is installed in a quiet desktop-sized chassis.

Latest Features


New features in Chimera 3.0:

– Improved flow filtering
– Impairment statistics
– Flow impairments (CLI + UI)
   – Jitter (Gaussian)
   – Frame corruption (BER and FCS)
   – Frame mis-ordering
   – Frame duplication
   – Packet Drop (Burst and Gilbert-Elliot)
   – Bandwidth policing (ingress)
   – Bandwidth shaping (egress)
   – Latency (‘Accumulate & Burst’)
– Port impairment (UI + CLI)
    – PMA error pulse injection
– Save / Load Chimera port impairment settings
– SyncE: All ports can sync to recovered clock from single Rx port (CLI only)

Known limitations
– Chimera impairments do not work with Micro TPLD (Valkyrie feature)

Coming Soon

Up-coming Chimera releases will further refine the current feature set. More details will be provided soon. For the latest news, please contact us directly.

Not what you’re looking for? Check our:

Try it now

Send in the form and we’ll send you instructions on how to access the Chimera test module in our live demo system.

New White Paper
5G Fronthaul Network Testing Considerations

New White Paper: 5G Fronthaul Network Testing Considerations

  • white paper
  • download

Did you know you can try Chimera right now?

It's easy. Just download the software and connect in seconds to a live test network so you can see how different features work.