What's New
This document supports the Cumulus Linux 5.10 release, and lists new platforms, features, and enhancements.
- For a list of open and fixed issues in Cumulus Linux 5.10, see the Cumulus Linux 5.10 Release Notes.
- To upgrade to Cumulus Linux 5.10, follow the steps in Upgrading Cumulus Linux.
What’s New in Cumulus Linux 5.10.1
Cumulus Linux 5.10.1 provides new SDK and firmware versions, and includes bug fixes.
- To upgrade to Cumulus Linux 5.10.1 from Cumulus Linux 5.9.2, you must install the Cumulus Linux 5.10.1 image. You cannot use package upgrade.
- Package upgrade to Cumulus Linux 5.10.1 from 5.9.1 and earlier does not support warm restart mode.
What’s New in Cumulus Linux 5.10.0
Platforms
NVIDIA SN5400 (400G Spectrum-4)
New Features and Enhancements
- High frequency telemetry
- Telemetry export with the OpenTelemetry protocol (OTLP) on Spectrum-4 switches (BETA)
- SSH login notifications
- QoS lossy headroom configuration and QoS Ingress and Egress Management Buffer Configuration
- Ignore reserved field in VXLAN header
- DHCP Option 61 (pre-provision a switch with its serial number) is enabled by default when Cumulus Linux boots
- Graceful shutdown on a peer
- SyncE minimum acceptable quality level option
- Adaptive routing ECMP resource optimization
- NVUE
- AmBER PHY counters
- Interface MAC address configuration
- Commands to generate and delete a cl-support file
- Session-based authentication
- Redesigned BGP show output flags now similar to vtysh output
- NVUE encrypts passwords by default in the NVUE
startup.yamlfile
Release Considerations
Review the following considerations before you upgrade to Cumulus Linux 5.10.
NVUE Commands After Upgrade
Cumulus Linux 5.10 includes the NVUE object model. After you upgrade to Cumulus Linux 5.10, running NVUE configuration commands might override configuration for features that are now configurable with NVUE and removes configuration you added manually to files or with automation tools like Ansible, Chef, or Puppet. To keep your configuration, you can do one of the following:
- Update your automation tools to use NVUE.
- Configure NVUE to ignore certain underlying Linux files when applying configuration changes.
- Use Linux and FRR (vtysh) commands instead of NVUE for all switch configuration.
Cumulus Linux 3.7, 4.3, and 4.4 continue to support NCLU. For more information, contact your NVIDIA Spectrum platform sales representative.
ASIC Monitoring Histogram Collection
In Cumulus Linux 5.10.0, there is an issue with ASIC monitoring histogram collection (release note issue ID 4037224).