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Aviz Networks details FTAS 2.3 EVPN, MC-LAG and ECMP test cases

Source Decision Insights Coverage Published January 14, 2026 Companies 3
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3 companies named across 1 category, one of 410 articles referencing Aviz Networks. Previous coverage: Aviz Networks details Aviz Certified SONiC Professional exam (Jan 2026).

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FTAS 2.3 expands test coverage with EVPN-VXLAN, MC-LAG and ECMP eBGP cases to validate SONiC deployments, giving enterprise IT teams pre-deployment checks for scaling, redundancy and routing behavior and performance testing.

Product update

The release adds structured test cases targeting EVPN-VXLAN, multi-chassis link aggregation and ECMP with eBGP to extend SONiC assessment capabilities. Tests were added in response to customer deployment patterns and to align with recent SONiC releases.

Technical breakdown

EVPN-VXLAN coverage includes configuration verification, known-unicast and broadcast/multicast handling, and scenarios that exercise link events and router failures under both eBGP and iBGP control planes. The suite also implements symmetric and asymmetric IRB test flows across RIF, SVI and RPCH contexts.

MCLAG tests cover both L2 and L3 deployments and simulate member-link failures, peer-link loss, keepalive disruption and active or standby reboots to validate failover behavior and traffic continuity. Test cases reflect real-world topologies where two chassis present aggregated links to downstream devices.

Key findings

FTAS 2.3 introduces ECMP eBGP scalability scenarios that exercise multiple path counts and route volumes, with predefined targets such as 16, 32 and 64 equal-cost paths paired with route set sizes up to 128K. These scenarios aim to verify route programming and traffic distribution under scaled eBGP tables.

Operational impact

By running these test cases before deployment, operations teams can validate redundancy mechanisms, load distribution and routing behavior that affect uptime and throughput. The expanded coverage supports assessment of whether a SONiC-based fabric meets an organization’s scaling and high-availability requirements.

Testing scope and alignment

The suite maps scenarios to typical Data Center Interconnect (DCI) patterns, including Virtual Extensible LAN (VXLAN) EVPN control-plane behaviors and MC-LAG topologies, enabling repeatable verification across common design variants. Test coverage is presented as discrete scenarios so teams can select suites that match their planned deployment model.

This “Blog Signals brief” is a fact-based summary of the vendor blog.

Blog post, originally published by Naresh Kumar at Aviz Networks.

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