Network Test Experts

Advanced Protocol Analyzers for Reliable Network Insight

Analyze, decode, and troubleshoot network traffic with Protocol Analyzers optimized for modern communication environments.

Overview

Accurate insight into data link layer activity is essential for resolving communication issues, optimizing performance, and maintaining network health. Protocol analyzers serve as a critical diagnostic tool that captures and interprets traffic at Layer 2, making it possible to identify collisions, frame errors, and communication inconsistencies. These tools allow engineers to pinpoint problems in real-time and conduct historical traffic reviews for comprehensive diagnostics. Protocol analyzers are designed to decode data packets, monitor network performance, and identify misconfigured devices or malformed frames. Their ability to capture, filter, and display link-level traffic enables teams to understand how systems communicate and where issues arise whether in wired Ethernet or wireless environments. Widely adopted by B2B organizations, these analyzers are a vital resource for network teams across North America seeking operational reliability and enhanced visibility.

The Following are our Advanced Offerings for Protocol Analyzers

In addition to offering products and systems developed by our own and other partners for Protocol Analyzers, we are proud to carry top-tier products and systems from our trusted partners, GAO Tek Inc., delivering reliable, high-quality technologies, integration and services you can count on. When appropriate, we have provided links to relevant products and systems of GAO TEK Inc.

Core Components

Hardware

  • Multi-interface packet capture modules: Ethernet Analyzers enable seamless decoding and traffic capture across multiple interfaces for deep packet inspection.
  • Portable USB-powered analyzers and rack mount systemsIndustrial Tablet PCs provide field-ready platforms to run analyzers with mobility and performance.
  • Time-synchronized capture clocks for accurate diagnostics: Digital Oscilloscopes ensure precise timing analysis and synchronization of captured network signals.
  • Integrated display options for field analysis: Display Screens support real-time visualization of protocol data and network diagnostics during field testing.

Software

  • Real-time decoding engines for Ethernet, TCP/IP, VoIP, CAN, Modbus, BACnet, and custom protocols
  • Event logging with drill-down analysis
  • Protocol violation detection and alerting
  • Advanced filtering, bookmarking, and session replay tools

Cloud Services

  • Remote protocol capture and secure data upload
  • Cloud-based dashboards for trend analysis and reports
  • API support for third-party integration and cross-site monitoring
  • Collaboration tools for distributed teams and remote diagnostics

Key Features and Functionalities

Integrations

  • Seamless compatibility with existing NMS, SIEM, and traffic monitoring systems
  • Supports SNMP, syslog, and Net Flow export
  • API integrations with development and QA tools
  • Works alongside intrusion detection/prevention systems (IDS/IPS)

Compatibility

  • Ethernet, Wi-Fi, USB, RS232/RS485, and CAN interfaces
  • Protocol support for TCP/IP, HTTP, MQTT, BACnet, Modbus, OPC UA, SIP, SNMP, and more
  • Cross-platform client applications (Windows, Linux)
  • Dual-stack support for IPv4 and IPv6 environments
  • Interoperable with devices from Cisco, Siemens, Honeywell, Schneider Electric, and others

Benefits

  • Root Cause Resolution: Uncover complex communication issues across device and application layers
  • Regulatory Confidence: Validate compliance with communication protocol standards
  • Developer Insight: Verify protocol implementation in product testing and QA
  • Time Efficiency: Minimize downtime and accelerate diagnostics
  • Versatility: Suitable for enterprise, field, lab, and industrial environments
  • Cost Savings: Reduce support cycles and prevent repeat issues

Applications

  • Debugging industrial control systems (ICS)
  • Monitoring VoIP or SIP traffic in telecom environments
  • Testing embedded devices and communications
  • Validating smart building automation protocols
  • Securing SCADA communications in critical infrastructure
  • Troubleshooting automotive and transportation systems

Industries Served

  • Industrial automation and manufacturing
  • Telecommunications and VoIP providers
  • Smart buildings and facility automation
  • Energy and utilities
  • Automotive and transportation systems
  • Healthcare and medical devices
  • Defense and aerospace

Relevant U.S. & Canadian Standards

  • IEEE 802.3 (Ethernet)
  • IETF RFC 791, 793, 792, 3261 (TCP/IP, SIP)
  • IEC 61131-3 (PLC communication protocols)
  • FCC Part 15B
  • ISED ICES-003
  • CSA C22.2 No. 213

Case Studies

Case Study 1: U.S. – Factory Network Debugging in Ohio

An industrial robotics company in Cleveland integrated our Protocol Analyzers to troubleshoot communication faults between PLCs and sensor arrays. The analyzers quickly identified corrupted Modbus traffic due to grounding issues, reducing downtime and saving thousands in production delays.

Case Study 2: U.S. – VoIP SIP Tracing in California

A mid-sized telecommunications provider in Sacramento used Network Test Experts’ analyzers to diagnose degraded voice quality in a new SIP rollout. Our tools pinpointed malformed SIP headers and jitter problems, helping the provider stabilize call quality across their network.

Case Study 3: Canada – Smart Building Integration in Ontario

A commercial real estate developer in Toronto relied on our protocol analyzers to validate BACnet and Modbus communication across HVAC and lighting systems. The analyzers facilitated seamless integration between multiple automation platforms, ensuring energy efficiency and system reliability.

Contact Us

Have questions or need help selecting the right protocol analyzer?
Get in touch with our experts today. Visit our Contact Us page: Contact Us  we’re here to support your network testing needs with personalized guidance, expert insights, and rapid response.

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