Aviz Networks details FTAS v3.4 enhancements for IPv6 and network resilience

Aviz Networks has released FTAS version 3.4, an update designed to support network operators managing IPv6 migrations, extensive routing tables, multi-vendor environments, and EVPN-VXLAN scale challenges. This version emphasizes validation against real-world network issues, which is critical for ensuring operational reliability and performance in complex enterprise networks.

Overview of FTAS v3.4 Capabilities

The Fabric Test Automation Suite (FTAS) v3.4 expands testing coverage for IPv6 and dual-stack Border Gateway Protocol (BGP) convergence. It introduces comprehensive failure modeling for container restarts, VTEP (Virtual Tunnel Endpoint) outages, and prefix surges. Alongside, it scales EVPN-VXLAN validation to support large routing tables and mobility scenarios.

The suite addresses network validation across routing, overlay, and management planes, aiming to provide more realistic conditions than traditional lab testing environments.

IPv6 and Dual-Stack Testing Enhancements

FTAS v3.4 extends IPv6 validation to include interface checks, link-local behavior, and BGP unnumbered configurations, supporting scaling to 64,000 IPv6 routes. Dual-stack BGP convergence testing now supports graceful restart scenarios with up to 128,000 prefixes, emphasizing operational readiness in mixed IPv4/IPv6 environments.

BGP Convergence and Failure Recovery Advances

The release adds stress-testing workflows simulating real-world recovery events rather than idealized conditions. It integrates BFD (Bidirectional Forwarding Detection) for rapid failure detection and models combined failure events, enhancing validation of route recovery and failover performance at scale.

EVPN-VXLAN Scale and Mobility Validation

Testing now includes up to 80,000 EVPN Type-5 routes and simulates live Virtual Machine (VM) mobility. The suite also evaluates resilience against VTEP and container restarts, providing insights into overlay network stability in dynamic data center environments.

Management Plane and High Availability Improvements

Improvements cover management Virtual Routing and Forwarding (VRF) with Secure Shell (SSH), Access Control List (ACL), and NTP checks, along with VRRP (Virtual Router Redundancy Protocol) failover validation in both steady-state and reboot conditions. These updates support operational consistency and reduce risks during Day-2 network operations.

These features collectively support network operators in validating complex, multi-vendor network fabrics and enhance confidence prior to production deployment.

This Blog Signals brief summarizes FTAS v3.4, highlighting its role in providing scalable, realistic network validation for enterprises managing IPv6 transitions and EVPN-VXLAN environments.