Cumulus Linux 4.0 Release Notes

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Overview

These release notes support the Cumulus Linux 4.0.0 release and describe currently available features and known issues.

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What's New in Cumulus Linux 4.0

Cumulus Linux 4.0.0 contains the following new platforms, new features, and enhancements:

New platforms include:

  • EdgeCore Minipack AS8000 (100G Tomahawk3)
  • Mellanox SN3700C (100G Spectrum-2)
  • Mellanox SN3700 (200G Spectrum-2): Cumulus Linux 4.0.0 currently supports 100G speed
  • HPE SN2745M (100G Spectrum)

New features and enhancements include:

For complete details on the differences between Cumulus Linux 4.0 and Cumulus Linux 3.7, refer to this article.

Platform Support

Cumulus Linux 4.0.0 supports a limited number of platforms. For the current list, see this article.

Cumulus Networks is ending the sale of these platforms in Cumulus Linux 4.0:

  • Cumulus Express CX-10256-S/EdgeCore OMP-800 (100G Tomahawk)
  • Dell S6000-ON (40G Trident2)
  • EdgeCore Wedge-100 (100G Tomahawk)
  • Facebook Backpack (100G Tomahawk)

Cumulus Networks is ending support for the Facebook Voyager (100G Tomahawk) switch in Cumulus Linux 4.0.

Important: Do not install Cumulus Linux 4.0 on the platforms that are listed as end of sale or end of support; Cumulus Linux does not work correctly on these platforms.

Licensing

Cumulus Linux is licensed on a per-instance basis. Each network system is fully operational, enabling any capability to be utilized on the switch with the exception of forwarding on switch panel ports. Only eth0 and console ports are activated on an un-licensed instance of Cumulus Linux. Enabling front panel ports requires a license.

After you receive a license key from Cumulus Networks or an authorized reseller, you can install the license. Follow the steps in the Cumulus Linux Quick Start Guide.

Install or Upgrade to Version 4.0

Whether you are installing Cumulus Linux 4.0 for the first time or upgrading from an earlier version, follow the steps in the Installation Management section of the Cumulus Linux User Guide.

Perl, Python and BDB Modules

Any Perl scripts that use the DB_File module or Python scripts that use the bsddb module do not run under Cumulus Linux 4.0.

Documentation

You can read the technical documentation here.

Open and Fixed Issues in Cumulus Linux 4.0 

Change Log
Date Change
 November 19, 2019   4.0.0 release
 November 21, 2019  Added CM-27367
 November 25, 2019  Added CM-27320 and CM-27184

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