Fabric Engine 9.3 Release Notes
> Preface
Extreme Networks, Inc. September 15, 2025
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Abstract
Preface
Purpose
Conventions
Text Conventions
Documentation and Training
Help and Support
Send Feedback
Document Revision Changes
New in this Release
New Hardware
New Software Features or Enhancements
Other Changes
File Names for this Release
Upgrade and Downgrade Considerations
IS-IS Route Tagging
Validated Upgrade Paths
Switches That Will Not Use Zero Touch Deployment
Switches That Will Use Zero Touch Deployment
Compatible Fabric IPsec Gateway Versions
Downgrade Considerations
Downgrade ExtremeCloud IQ Managed Switches to 9.0.0.0
Post Upgrade Configuration for Zero Touch Fabric Configuration and Nickname Assignment
Hardware and Software Compatibility
4220 Series Series Hardware
5320 Series Hardware
5420 Series Hardware
5520 Series Hardware
5720 Series Hardware
7520 Series Hardware
7720 Series Hardware
7830 Series Hardware
Transceivers
Scaling
Layer 2
Maximum Number of Directed Broadcast Interfaces
Maximum Number of Microsoft NLB Cluster IP Interfaces
IP Unicast
IP Interface Maximums Clarification
IP Interface Maximums for 4220 Series
IP Interface Maximums for 5320 Series
IP Interface Maximums for 5420 Series
IP Interface Maximums for 5520 Series
IP Interface Maximums for 5720 Series
IP Interface Maximums for 7520 Series
IP Interface Maximums for 7720 Series
Layer 3 Route Table Size
Route Scaling
IP Multicast
Distributed Virtual Routing (DvR)
VXLAN Gateway
Filters, QoS, and Security
4220 Series Filter Scaling
5320 Series Filter Scaling
5420 Series Filter Scaling
5520 Series Filter Scaling
5720 Series Filter Scaling
7520 Series Filter Scaling
7720 Series Filter Scaling
7830 Series Filter Scaling
Routed Private VLANs/E-TREEs Impact on Filter Scaling
OAM and Diagnostics
Routed Private VLANs/E-TREEs Impact on Filter Scaling
Extreme Integrated Application Hosting Scaling
Fabric Scaling
Multi-area SPB Maximums
Number of I-SIDs Supported for the Number of Configured IS-IS Interfaces and Adjacencies
Interoperability Considerations for IS-IS External Metric
Recommendations
VRF Scaling
Important Notices
Platform Overview and Integration Updates
Licensing
Management CLIP Preferred for Management Client Applications
Memory Usage
Known Issues and Restrictions
Known Issues for this Release
Restrictions and Expected Behaviors
Resolved Issues this Release
Related Information
MIB Changes
Deprecated MIBs
Modified MIBs
New MIBs
Obsolete MIBs
Preface
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