Aviz Service Node R2.3 details 5G-NSA session exports and dynamic DPI upgrades

Aviz Service Node (ASN) Release 2.3 adds enhanced subscriber session exports for 5G-NSA, deeper control-plane correlation, advanced DPI payload extraction, and more flexible deployment options, including in-service DPI updates and multi-NIC mapping for Intel and ConnectX hardware.

Research Overview

The vendor describes ASN R2.3 as an update to Release 2.2 that increases session intelligence and visibility across telco and enterprise network deployments. The post frames the update around finer-grained session awareness, DPI payload extraction, and operational flexibility across control and user planes.

According to the release summary, ASN R2.3 improves correlation between protocol and session data, supports dynamic configuration changes, and expands hardware deployment options to match available NICs.

Key Findings

ASN R2.3 introduces user-based Active Bearer Session exports for 5G-NSA subscriber sessions. The release also adds control-plane subscriber exports that include user session lifecycle events, such as session creation and termination.

For correlation, the post states that RADIUS subscriber information is integrated directly into control-session data for 4G (EPC) and 5G-NSA environments. It also adds DSCP IP TOS extraction from inner and outer IP headers and captures PRIO Cause for session deletion request events.

Technical Breakdown

On the export side, the post says ASN exports data with a unique identifier configurable via Flow Vision or defaulting to the node hostname. It also describes “rulebase attribute payloads” extraction from RADIUS packets, exposing predefined Policy and Charging Control rulebases applied to subscribers.

For protocol and DPI functions, ASN R2.3 supports SIP and RTP protocol extraction and correlation, including Call-ID based associations and SDP-negotiated session parameters. The vendor also describes a DPI engine for payload-aware traffic classification and targeted metadata extraction across complex and encrypted protocol traffic.

Operational Impact

Deployment and operations features include boot-time configuration through Flow Vision to support in-service provisioning without redeployment. The post also states that dynamic DPI upgrades run through Flow Vision, with updates to DPI engines and signature databases applied without service interruption.

The release adds multi-NIC support that the vendor says works with Intel NICs, Mellanox ConnectX NICs, or both simultaneously. It also introduces a Dedup-Only boot option and a Metadata Export Skip boot option to focus processing on deduplication or selectively disable application metadata exports.

Overall, Aviz Service Node Release 2.3 focuses on expanding session exports and control-plane correlation, adding DPI payload extraction and SIP–RTP correlation, and providing operational flexibility via boot configuration, in-service DPI upgrades, and multi-NIC support. This “Blog Signals brief” is a fact-based summary of the vendor blog.