VIAVI TestCenter Layer 2-7 Network Test Software

Layer 2-7 network test software with TestCenter IQ analytics, open automation APIs and portable test cases from hardware to virtual.

Native API languages: Python, Tcl, Perl, Java, C, C#, C++, and Ruby
Operating systems: Windows, Linux and FreeBSD
REST API: Delivered as a service running on either the VIAVI LabServer or the user's local machine
Open APIs: OTG (Open Traffic Generator) and gNMI (gRPC Network Management Interface) APIs

Datasheet

Overview

VIAVI TestCenter is a Layer 2-7 test software environment designed for flexible, portable test cases that run on both hardware and virtual platforms. The environment can be customised to specific test requirements, with the aim of shortening test cycles for network equipment and services.

TestCenter IQ adds analytics, reporting and visualisation of the dynamic behaviour of systems under test. User-definable health indicators, correlated protocol and DUT events, and historical time series data support isolation and presentation of issues during and after a test run.

Automation

All TestCenter features are accessible through its native API, which offers libraries for Python, Tcl, Perl, Java, C, C#, C++ and Ruby, plus a RESTful API delivered as a service on the VIAVI LabServer or a local machine. TestCenter supports the OTG (Open Traffic Generator) and gNMI (gRPC Network Management Interface) APIs, integrates with open-source frameworks such as ONDATRA, snappi and gosnappi, and supports HLTAPI and Cisco pyATS. For SONiC environments, TestCenter integrates with SpyTest, snappi/OTG and Ondatra/OpenConfig and is validated against the open-source sonic-mgmt project.

TestCenter+ and AI integration

TestCenter+ is a web-based platform for test deployment, collaboration and resource management. The TestCenter Model Context Protocol (MCP) Server, part of the VIAVI NITRO AI portfolio, allows AI agents to configure, execute, monitor and analyse TestCenter tests through natural language.

Optional test packages

Additional packages extend the platform, including Enhanced L4-7 for stateful application traffic over emulated topologies, MACsec for IEEE 802.1AE validation, and Autonomous Flow Tracking for monitoring millions of network flows per test.

Key Features

Layer 2-7 test cases portable from hardware to virtual
TestCenter IQ analytics with user-definable health indicators for real-time health monitoring and error isolation
Correlated protocol and DUT events for simplified troubleshooting
Historical time series data for debugging and correlation of real-time metrics
Customizable reports combining time series data and end-of-test metrics
Emulation of complex mixes of voice, video and data traffic
Analysis of non-VIAVI TestCenter traffic to troubleshoot production networks
Native SONiC automation support with SpyTest, snappi/OTG and Ondatra/OpenConfig
OTG (Open Traffic Generator) and gNMI (gRPC Network Management Interface) API support
TestCenter Model Context Protocol (MCP) Server for AI agent control via natural language
TestCenter+ web-based platform for test deployment, collaboration and resource management
API supports all capabilities available in the TestCenter GUI
High-performance REST API
Support for pyATS and HLTAPI high-level test environments

Specifications

Automation and APIs

Native API languages	Python, Tcl, Perl, Java, C, C#, C++, and Ruby Via dedicated libraries
Operating systems	Windows, Linux and FreeBSD Not all language versions are supported on all OS versions; see TestCenter release notes
REST API	Delivered as a service running on either the VIAVI LabServer or the user's local machine Included as part of BPK-1001A
Open APIs	OTG (Open Traffic Generator) and gNMI (gRPC Network Management Interface) APIs OTG/gNMI API runs on Linux, Docker
Open-source test frameworks	ONDATRA, snappi, and gosnappi
High-level test environments	HLTAPI and Cisco's pyATS pyATS runs in any pyATS host environment

HLTAPI

Languages BPK-1010A	Tcl, and Python
Commands BPK-1010A	approximately 250 commands
Sample scripts BPK-1010A	over 60 sample scripts
Target environments BPK-1010A	Debian 12.5, Ubuntu 24.04, Ubuntu 22.04, Windows 11 Pro 64-bit, Windows Server 2025, Windows Server 2022, TCL 8.6.10, Python 3.12.2
Port support BPK-1010A	40G/100G/200G/400G/800G
Updates BPK-1010A	approximately three times per year In conjunction with TestCenter major software releases

Enhanced L4-7

Protocols BPK-2001, AP-BPK-2001, V-BPK-2001-001	HTTP1.0/1.1, HTTPS 1.0/1.1, FTP, Telnet, CIFS, IMAP, POP3, SMTP
Applications BPK-2001, AP-BPK-2001, V-BPK-2001-001	YouTube, Netflix, Facebook, Amazon, Instagram
Topology emulation BPK-2001, AP-BPK-2001, V-BPK-2001-001	BGP, OSPF, DHCP
Supported platforms BPK-2001, AP-BPK-2001, V-BPK-2001-001	VIAVI FX2/MX2 and MX3 Test Modules, VIAVI C2 Appliance and TestCenter Virtual Refer to Customer Support Center for latest supported hardware
Measured parameters BPK-2001, AP-BPK-2001, V-BPK-2001-001	TCP Goodput, Successful TCP transactions, URL Avg Load Time, TCP TTFB, QoE Score, Advanced Sequencing Errors, Avg Latency, Max Latency, Avg Jitter, Max Jitter, Drop Count

MACsec

Standard	IEEE 802.1AE
Encryption and integrity options	Integrity Check Value (ICV) only; ICV + Encryption for payload
Cipher suites	GCM-AES-128, GCM-AES-256, GCM-AES-XPN-128, GCM-AES-XPN-256
Security modes	Static SAK (manual secure key association); Static CAK (manual connectivity association key)
Speeds	1G to 800G
Supplicants	up to 100 supplicants per port
Supported appliances	A1-400-QD-16-T1S, A2-400-QD-8-T1S, A2-400-QD-16-T1S, B3-800-QD-4-T1S, B3-800-OSFP-4-T1S, D2-1600-OSFP-4, M1 and C2
Supported test modules	MX3-QSFP28-4, PX3-QSFP-DD-2, FX2-1G-S16 and FX2-10G-S16

Autonomous Flow Tracking

Supported hardware BPK-1407	FX3 100G 4- and 6-port, MX3 100G 4-port, and B3 800G 8-port appliances
Endpoint recognition BPK-1407	over 2 million endpoints or paths
Number of tuples per flow BPK-1407	10 On 4- and 6-port FX3 100G, 4-port MX3 100G, 8-port B3 800G
Number of Tx flows BPK-1407	10M AFT mode; NA in default mode
Number of Rx flows BPK-1407	512K AFT mode; NA in default mode
Number of paths BPK-1407	10M AFT mode; 4K in default mode
Tx Stream/Flow-ID (Trackable) BPK-1407	2 K Flows with PFC; 10 M flows without PFC 4- and 6-port FX3 100G and 4-port MX3 100G, AFT mode; 2 K Streams in PGA mode
Rx Stream/Flow-ID (Trackable) BPK-1407	512 K Flows per port 4- and 6-port FX3 100G and 4-port MX3 100G, AFT mode; 2 K Streams in PGA mode
Number of paths supported BPK-1407	10 million paths per port 4- and 6-port FX3 100G and 4-port MX3 100G
Tx Trackable Flow Count BPK-1407	1 Million 8-port B3 800G
Rx Trackable Flow Count BPK-1407	4 K 8-port B3 800G
HW Stream Blocks BPK-1407	128 8-port B3 800G
Max RIT Table Entries BPK-1407	128 K 8-port B3 800G

TestCenter IQ System Requirements

General functional testing	Intel® i3 CPU (or equivalent), 2.9 GHz or better, 3 GB RAM, 50 GB of free disk space Low port (< 20) and stream density and/or low protocol scale (100 s of emulated endpoints)
Scaling testing	Intel® i7 CPU (or equivalent), 2.9 GHz or better, 8 cores CPU, 32 GB RAM, 100 GB of free disk space, 500 GB DC Quality SSD Higher ports and/or single or multi-dimensional protocols scale
GUI workstation	Windows-based workstation with 10/100/1000 Mbps Ethernet NIC; mouse and color monitor required for GUI operation
Automation workstation	Linux- or Windows-based workstation for automation scripting
REST API workstation	Mac, Linux, or Windows-based workstation for Rest API support

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

Automated regression testing
Continuous testing environments
Performance testbeds with scripted test cases
SONiC data center network validation
Cloud and NFV network service testing
MACsec validation for network equipment
Carrier Ethernet security assurance
Data center interconnect protection testing
Core transport network testing
Routing convergence testing
Flow performance monitoring and troubleshooting

Options & Accessories

Option	Description
BPK-1001A	Packet Generator and Analyzer Base Package A — Includes the REST API and support for Tcl, OTG and pyATS
BPK-1080A	Perl language support — Windows, BSD, Linux
BPK-1151A	Ruby language support — Windows, Linux
BPK-1152A	C/C++ language support — Windows, Linux
BPK-1305A	C# language support — Windows, Linux
BPK-1153A	Java language support — Windows, Linux
BPK-1154A	Python language support — Windows, Linux
BPK-1010A	VIAVI TestCenter HLTAPI Base Package A — Currently no charge; available for download from the Customer Service Center
BPK-2001	STC Enhanced L4-7, Chassis License
AP-BPK-2001	STC Enhanced L4-7, C2
V-BPK-2001-001	Virtual Enhanced L4-7, 1 Port
BPK-1407	Autonomous Flow Tracking (AFT) Package