Wireless Network

IP Network Protocol Analysis

5G Protocol Analyzer for Comprehensive 5G Network Monitoring

GL's 5G Protocol Analyzer is capable of capturing, decoding, and performing various test measurements across various interfaces such as N1N2, N4, N8, N10, N11, N12, N13 interfaces of the 5G network.

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5G Network Protocol Analyzer
5G and LTE Protocols

Overview

GL's 5G Protocol Analyzer is a specialized tool designed for comprehensive network analysis in 5G environments. It captures, decodes, and performs test measurements across critical 5G interfaces including N1N2, N4, N8, N10, N11, N12, and N13, enabling operators to monitor and optimize next-generation networks.

Supports 5G's three core verticals:

  • Enhanced Mobile Broadband (eMBB) for high-speed connectivity
  • Massive Machine Type Communications (mMTC) for IoT scalability
  • Ultra-Reliable Low Latency Communications (URLLC) for mission-critical applications

Integrated into GL’s PacketScan™ platform, the analyzer is available as the PKV112 module through additional licensing. This modular approach allows seamless integration into existing network monitoring workflows. Monitors and segregates traffic across interfaces, providing real-time statistics and call analytics for network troubleshooting. Compatible with diverse 5G use cases such as smart cities, autonomous vehicles, AR/VR, and industrial IoT.


Main Features

  • Capture, decode, and analyze calls in the 5G Network
  • Supported protocols include - Non-Access Stratum (NAS), Next Generation Application Protocol (NGAP), Packet Forwarding Control Protocol (PFCP), XnAP, SCTP, UDP, TCP, and IP
  • Decode Enhanced Common Public Radio Interface (eCPRI) protocol
  • Following interfaces are supported in Packet Data Analyzer:
    • N1 N2 Interface - gNodeB (also called Next Generation RAN), and AMF (Access and Mobility Management Function) nodes
    • N4 Interface - Session Management Function (SMF) and User Plane Function (UPF) elements
    • N8 Interface - Unified Data Management (UDM) and Access and Mobility Management Function (AMF)
    • N10 Interface - Unified Data Management (UDM) and Session Management Function (SMF)
    • N11 Interface - Mobility Management Function (AMF) and Session Management Function (SMF)
    • N12 Interface - Authentication Server Function (AUSF) and Access and Mobility Management Function (AMF)
    • N13 Interface - Authentication Server Function (AUSF) and User Data Management (UDM)
  • Save calls to PCAP (Wireshark® format) and in HDL (GL Proprietary format)
  • PDA in Packetscan™ provides a complete call flow of a 5G session
  • Advanced filtering and search based on any user selected protocol fields
  • Add any protocol field to the summary view, filtering, and search features. This flexibility allows users to monitor the specific protocol fields they need
  • Trigger intelligent actions based on signaling and traffic conditions
  • Displays Summary, Detail, Hex dump, Statistics, and Call Detail Views
  • Hex dump View displays the frame information in HEX and ASCII format, the contents of this view can also be copied to clipboard
  • Statistics View displays statistics based on frame count, byte count, frames/sec, bytes/sec etc. for the entire capture data
  • Call Detail View displays called/ calling number, released calls, call status, and more

Frequently Asked Questions

What is GL’s 5G Protocol Analyzer?
GL’s 5G Protocol Analyzer is a network analysis tool that captures, decodes, and measures traffic across key 5G interfaces, enabling real-time and offline monitoring of 5G networks.
Which 5G interfaces does the analyzer support?
It supports N1N2, N4, N8, N10, N11, N12, and N13 interfaces for comprehensive 5G network analysis.
What protocols can the analyzer decode?
The analyzer supports decoding of NGAP, NAS, PFCP, and VoNR, among other 5G protocols.
What types of 5G use cases does it support?
It is suitable for enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable low latency communications (URLLC), covering use cases like IoT, smart cities, AR/VR, and autonomous vehicles.
Is the 5G Protocol Analyzer a standalone product?
No, it is an optional module (PKV112) available within GL’s PacketScan™ platform and requires additional licensing.
Can the analyzer provide real-time statistics and call analytics?
Yes, it captures, segregates, and monitors all calls, providing detailed statistics and analytics for network troubleshooting and optimization.
How do I purchase or get a demo of the 5G Protocol Analyzer?
You can request a demo or purchase the analyzer by contacting GL Communications through their website’s contact form or sales team.
What industries benefit most from using GL’s 5G Protocol Analyzer?
Telecommunications, IoT, automotive, smart city infrastructure, and AR/VR sectors leverage the analyzer for network validation and troubleshooting.
Does the analyzer support both NSA and SA 5G architectures?
Yes, it supports monitoring and analysis for both Non-Standalone (NSA) and Standalone (SA) 5G network deployments.
Can the analyzer handle encrypted 5G traffic?
While the analyzer decodes standard protocols, encrypted traffic analysis depends on network configuration and decryption capabilities.
Is the 5G Protocol Analyzer compatible with other GL test and measurement tools?
Yes, it integrates seamlessly within GL’s PacketScan™ suite and can complement other GL hardware and software solutions.
What formats are supported for captured data export?
Captured data can be exported in standard formats such as PCAP for further offline analysis.
How does the analyzer help improve 5G network performance?
By providing detailed protocol-level insights and call statistics, it helps identify bottlenecks, protocol errors, and performance issues for optimization.
What kind of licensing model does GL offer for this analyzer?
The 5G Protocol Analyzer is offered as an optional licensed module (PKV112) within PacketScan™, with flexible licensing based on user requirements.
Is training or technical support available for users of the 5G Protocol Analyzer?
GL Communications provides training, documentation, and technical support to ensure effective use of the analyzer.

Protocol Stack

N1N2 Protocol Stack

N1N2 Protocol Stack

N4 Protocol Stack

N4 Protocol Stack

N8 Protocol Stack

N8 Protocol Stack

N10 Protocol Stack

N10 Protocol Stack

N11 Protocol Stack

N11 Protocol Stack

N12 Protocol Stack

N12 Protocol Stack

N13 Protocol Stack

N13 Protocol Stack


Supported Protocols Standard / Specification
System Architecture for the 5G 3GPP TS 23.501
NG Application Protocol (NGAP) 3GPP TS 38.413
Non-Access-Stratum (NAS) 3GPP TS 24.501
GPRS Tunneling Protocol for User Plane (GTP-U) 3GPP TS 29.281
NR and NG-RAN Overall Description 3GPP TS 28.300
Packet Forwarding Control Protocol (PFCP) 3GPP TS 29.244
UDP IETF RFC 768
IPv4 IETF RFC 791 [5]
IPv6 IETF RFC 2460 [6]
JavaScript Object Notation (JSON) IETF RFC 8259
HTTP/2 IETF RFC 7231
IETF RFC 7540/RFC 7541
TLS IETF RFC 8446
TCP IETF RFC 793

Monitoring 5G Networks

GL's PacketScan™ protocol analyzer provides options to analyze set of Network Functions (NFs) and service based interfaces over 5G to monitor live signaling and traffic on the following interfaces.

  • N1N2 - gNodeB (gNB), and Access and Mobility Management Function (AMF)
  • N4 - Session Management Function (SMF) and User Plane Function (UPF)
  • N8 - Unified Data Management (UDM) and Access and Mobility Management Function (AMF)
  • N10 - Unified Data Management (UDM) and Session Management Function (SMF)
  • N11 - Mobility Management Function (AMF) and Session Management Function (SMF)
  • N12 - Authentication Server Function (AUSF) and Access and Mobility Management Function (AMF)
  • N13 - Authentication Server Function (AUSF) and User Data Management (UDM)

Key Features

  • NGAP and NAS protocol monitoring
  • Supports monitoring of VoNR (Voice) calls
  • Provides VoNR call statistics such as caller, callee, MOS scores, discarded packets and voice storage
  • Provides a complete call flow of a 5G session
  • Supports both real-time and offline analysis
  • Services use REST APIs based on HTTP and JSON data format
  • QoS requests for greater or lesser bandwidth
  • Supports services as Voice Quality, Data Retention, Lawful Interception, Fraud Detection

The below screenshots illustrates 5G call (NGAP Layer and NAS Layer) decoded in Packetscan™ analyzer.

NGAP Layer Decode View

NGAP Layer Decode View

NAS Layer Decode View

NAS Layer Decode View



5G Call Analysis (Call Graph) in Packet Data Analyzer (PDA)

5G N1N2 Interface

5G N1N2 Interface

5G N4 Interface

5G N4 Interface

5G N8 Interface

5G N8 Interface

5G N10 Interface

5G N10 Interface

5G N11 Interface

5G N11 Interface

5G N12 Interface

5G N12 Interface

5G N13 Interface

5G N13 Interface

Resources

Note: PCs which include GL hardware/software require Intel or AMD processors for compliance.

Item Description
PKV112 5G Analyzer (Optional with PacketScan™)
PKV113 Offline 5G Analyzer (Optional with PacketScan™ and NetSurveyorWeb™)
Item Description
PKV100 PacketScan™ - (Online and Offline)
PKV101 PacketScan™ - Offline
PKV110 IMS Protocol Decodes (Optional with PacketScan™)
PKV107 LTE (Long Term Evolution) Analyzer (Optional with PacketScan™)
PKV108 Offline LTE (Long Term Evolution) Analyzer (Optional with PacketScan™)
PKV105 SIGTRAN (Optional with PacketScan™)
PKV106 Offline SIGTRAN Analyzer (Optional with PacketScan™)
PKV103 IP Based GSM and UMTS Analyzer (Optional with PacketScan™)
PKV109 Offline IP Based GSM and UMTS Analyzer (Optional with PacketScan™)
PKV104 FaxScan™ for SIP and Fax over IP (T.38)
Related Hardware for IP
PKV120 PacketScan™ HD w/4 x 1GigE
PKV120p PacketScan™ HD w/4 x 1GigE - Portable
PKV122 PacketScan™ HD w/2 x 10GigE
PKV121 PacketScan™ FB - (Offline Analyzer)
PKV122p PacketScan™ HD w/2 x 10 GigE - Portable
PKV123 PacketRecorder™ HD & PacketRePlay™ HD
PKV124 PacketScan™ HD w/40/100 GigE
PKV124P PacketScan™ HD w/40/100 GigE - Portable
Web Based Monitoring Applications
PKV170 NetsurveyorWeb™ (Perpetual License, Unlimited Users/Nodes)
– Includes Oracle 11g Standard Edition One and Standard Server-Grade Computing Platform
PKV169 NetsurveyorWeb™ Lite
- Probe Level WebServer, PacketScan™, and Oracle 11g Express Edition;