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Aviz OPBNOS: Enhancing 5G Monitoring with GTP Extension Header Support

Source Decision Insights Coverage Published November 15, 2025 Companies 3
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3 companies named across 15 categories, one of 268 articles referencing Nvidia. Previous coverage: Aviz Networks Supports NVIDIA Spectrum-X in AI Networking Solution (Nov 2025).

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Updates from Aviz reveal that OPBNOS now includes enhancements for parsing and filtering GTP extension headers, essential for 5G monitoring and traffic control.

Overview

The GPRS Tunneling Protocol (GTP) supports the encapsulation of user and control traffic in mobile networks. The addition of GTP extension headers provides metadata for advanced functionalities. The OPBNOS platform now enables parsing and filtering of these packets, allowing for better management in data center and monitoring environments.

Supported GTP Extension Headers

PDU Session Container for 5G (0x85)

The Power Distribution Unit (PDU) Session Container in 5G Standalone (SA) architecture is critical for user-plane flows. This component carries session and Quality of Service (QoS) information necessary for precise network management.

  • Advanced traffic management: Facilitates routing to alleviate congestion and optimize performance.
  • Enabling network slicing: Supports bandwidth allocation for specific sectors such as healthcare and Internet of Things (IoT).
  • QoS prioritization: Safeguards applications requiring low latency, adjusting in real-time.

Advanced QoS Handling

This feature enhances QoS with parameters for optimization.

  • Fine-grained QoS control: Targets metrics like delay and loss for applications such as cloud gaming and IoT.
  • Adaptive traffic steering: Collaborates with the Product Carbon Footprint (PCF) for prioritizing urgent services dynamically.
  • Resilience under congestion: Reduces potential delays and loss through improved resource usage.

What Open Packet Broker Does

Extension-Header Filtering & Load Balancing

  • Compatibility is confirmed with NVIDIA Spectrum-2 and newer products. The GTP parser must be activated via Command-Line Interface (CLI) for handling packets with extension headers.
  • The parser incorporates support for significant extension headers, allowing filtering based on GTP parameters.

Configuration

OPBNOS facilitates filtering of GTP packets by the Traffic Endpoint Identifier (TEID), inner IP headers, and Layer 4 ports.

Benefits

  • Seamless compatibility: Processes both standard and extended GTP packets.
  • Advanced packet filtering: Matches criteria even with extensions present.
  • Optimized performance: Supports efficient management of traffic in mobile infrastructures.
  • Future-proofing: Prepared for 5G slicing and evolving QoS demands.

The addition of GTP extension header support within open networking frameworks enhances mobile application capabilities while remaining aligned with existing systems. Further information on deployment is available in relevant use cases.

FAQs

1) What is GTP extension header monitoring and why is it essential for 5G networks?

This monitoring feature provides visibility into PDU sessions and QoS in 5G environments, crucial for latency-sensitive applications.

2) How does Aviz Open Packet Broker support filtering of GTP extension headers?

OPBNOS allows filtering based on TEID and Intrusion Prevention System (IPS) parameters, even when the PDU Session Container is in use, enabling detailed QoS management.

3) Why is PDU Session Container (0x85) filtering important for 5G QoS?

Metadata carried by 0x85 allows prioritization of critical services, adjusting dynamically as needed.

4) What platforms are required to enable GTP extension header filtering in OPBNOS?

NVIDIA Spectrum-2 or later platforms are necessary, with CLI activation for the GTP parser.

5) How does GTP extension header support future-proof mobile network observability?

This feature makes available essential QoS and slicing data, aiding operators in adapting to contemporary 5G demands.

Blog post, originally published by Harrish S J at Aviz Networks.

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