The release notes for Fabric Engine 9.3 details platform-level enhancements across Extreme Networks' switching portfolio, including support for new hardware models such as the 5420M-24W-24S-4YE and 7830-32CE-8DE, with updated platform profiles and expanded transceiver compatibility for QSFP+/QSFP28, SFP+/SFP28, and 1000BASE-T modules. Software improvements include enhanced Auto-sense logic for dynamic port role assignment, routed Management VLAN support for Layer 3 segmentation on management interfaces, CLI and EDM refinements for improved operational visibility, and expanded MACsec cipher suite support including GCM-AES-256 and GCM-AES-XPN-256. Deployment features such as Zero Touch Deployment (ZTD) and guided Fabric Configuration workflows streamline provisioning and topology setup using DHCP automation and IS-IS/SPB templates. The release includes validated scaling metrics for Layer 2/3 routing tables, multicast groups, and VRF instances across the 4220–7830 Series platforms, with resource utilization benchmarks. Security updates cover MACsec keychain integration, NEAP fallback logic for resilient authentication, and RADIUS enhancements supporting vendor-specific attributes and granular accounting. Additional technical content includes hardware/software compatibility matrices, upgrade/downgrade pathing guidelines, indexed known issues and resolved defects, and extensive MIB updates detailing SNMPv2/v3 OID mappings and trap definitions, making this document a comprehensive reference for engineers managing Extreme Networks infrastructure.
