This document supports the Cumulus Linux 4.4 release, and lists new platforms and features.
- For a list of all the platforms supported in Cumulus Linux 4.4, see the Hardware Compatibility List (HCL).
- For a list of open and fixed issues in Cumulus Linux 4.4, see the Cumulus Linux 4.4 Release Notes.
- To upgrade to Cumulus Linux 4.4, follow the steps in Upgrading Cumulus Linux.
What’s New in Cumulus Linux 4.4.3
Cumulus Linux 4.4.3 provides bug fixes.
What’s New in Cumulus Linux 4.4.2
Cumulus Linux 4.4.2 provides bug fixes and contains several enhancements.
- Entity-Sensor-MIB extensions
- Drop packets that exceed the egress layer 3 MTU
- Netfilter-ACL rules:
What’s New in Cumulus Linux 4.4.0
Cumulus Linux 4.4.0 supports new platforms, provides bug fixes, and contains several new features and improvements.
- NVIDIA SN3700C-S (100G Spectrum-2) with Secure Boot (early access)
New Features and Enhancements
- NVIDIA User Experience (NVUE) is a new object-oriented, schema driven model of a complete Cumulus Linux system (hardware and software) with a robust API that allows multiple interfaces to both view and configure any element within the system. NVUE provides both a CLI and an API.
The NVUE commands and outputs are subject to change.
- Multiple VLAN-aware bridges
- Single VXLAN devices
- Downstream VNI (symmetric EVPN route leaking)
- EVPN multihoming Head End Replication
- PTP Boundary Clock enhancements
- PIM Allow RP
- BGP conditional route advertisement
- Optimized Multicast Flooding (OMF)
- Smart System Manager warm boot
- Secure Boot
- QoS enhancements (
datapath.conffiles removed and replaced)
- QinQ double-tagged translation is now supported on switches with the Spectrum-2 and Spectrum-3 ASIC
- Double (twice) NAT
- ZTP enhancements include DHCP on front panel ports, the ability to continue provisioning after executing the script locally, and improved logging
- A specific software license key is no longer required to enable the
switchdservice. For more information, refer to Licensing in Cumulus Linux 44 and Later.
Cumulus Linux 4.4 supports NVIDIA Spectrum-based switches only. Cumulus Linux 3.7 and 4.3 continue to support Broadcom-based networking ASICs.
Cumulus Linux 4.4. no longer supports GRE and OVSDB High Availability.
What’s New in the Documentation
The Cumulus Linux 4.4 user guide (this guide) provides pre-built Try It demos for certain Cumulus Linux features. The Try It demos run a simulation in NVIDIA Air; a cloud hosted platform that works exactly like a real world production deployment. Use the Try It demos to examine switch configuration for a feature.
The following Try It demos are currently available:
For more information, see Try It Pre-built Demos.