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 4.4.1
Cumulus Linux 4.4.1 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
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.