Verify network service functionality at production scale and simulate network events

The R-PHY System Scaling Tools are designed to simulate thousands of R-PHY devices and cable modems simultaneously to simulate control plane traffic with Cable Modem Termination Systems (CMTS) and cable network services to identify bottlenecks that could impact customer service while in production.

R-PHY System Scaling Tools Architecture

One solution. Multiple benefits


Avoids physical device procurement,
connectivity, provisioning lab space,
network wiring and configuration,
power, cooling, and physical security


Thousands of virtual R-PHY devices
and cable modems can be launched
from a single server to simulate
control plane traffic with network
devices and cable management


Validated with integrated and virtual
CMTS from leading providers

Accurate Control
Plane Testing

Virtual RPDs and CMs support real-time, two-way communication with CMTSs and comply with CableLabs standard


Aggregates metrics from simulated
devices, enabling data analysis within modern observability platforms

our solution

Virtual RPD Simulation

Simulate physical Remote PHY devices to test the capacity and performance of CMTS, PTP, ToD, and DHCP services to identify bottlenecks that could impact customer service delivery in production

Virtual Cable Modem Simulation

Mimic cable modem functionality to test control and data plane of CMTS along with cable network services, to pinpoint bottlenecks that could impact customer service in production environments

Orchestration Module

Enables scaling and management of virtual RPD and CM simulators on a large scale, simplifying testing procedures

Telemetry Module

Gathers metrics and workflow traces from simulated devices to accelerate root cause analysis on modern visualization tools

Virtual RPD

Virtual R-PHY devices support real-time,
bi-directional communication simultaneously
with multiple service cores over the GCP and L2TPv3 protocols. They seamlessly interact with critical network services such as DHCP, Time-of-Day and PTP servers.

They adhere to CableLabs, IEEE and IETF specifications, and have been validated with physical CCAP devices and vCMTS instances from leading vendors.

Unlock cost-effective and standards-compliant simulation at scale

Virtual RPD Simulation

  • Cost-efficient control plane simulation
    Reduces the need for configuring and maintaining physical RPDs
  • High-scale simulation
    Entire service areas/regions can be simulated at once to validate network architecture
  • Efficient testing
    Launch and terminate thousands of RPD simulators in seconds
  • Real-time telemetry export
    Metrics from all RPD simulators testing cable network devices are recorded and can be exported for data analysis

Virtual Cable Modem

Simulates the control plane interaction between thousands of DOCSIS 3.1 and 4.0 cable modems and DOCSIS service cores, and network services such as DHCP, ToD, TFTP, and SNMP servers. This enables rapid and cost-effective validation of DOCSIS service core compatibility, operation and performance, and network policies such as IP address and bandwidth allocation.

Simultaneously, the need to procure, connect, power, maintain, and secure hundreds or thousands of physical cable modems can be significantly reduced.

Improve capacity planning

Simulate difficult-to-replicate network events such as modem initialization storms following a network outage


Virtual Cable Modem
Simulation features:

  • Accurate control plane simulation
    For verifying IP addressing, ranging requests, and bandwidth allocation policies
  • Saves significant time, space, cost, and power
    Enable large-scale simulation on a single server, either locally or in the cloud
  • Very high scale testing
    DOCSIS service core control plane performance can be verified for thousands of subscribers
  • Supports API access and real-time telemetry export
    REST configuration interface and data export via OpenTelemetry


Give us 15 minutes, and we will show you how Falcon V Systems can improve your network performance and capabilities