What's New

This document supports the Cumulus Linux 4.1 releases, and lists new platforms and features.

• For a list of open and fixed issues in Cumulus Linux 4.1, see the Cumulus Linux 4.1 Release Notes.
• To upgrade to Cumulus Linux 4.1, follow the steps in Upgrading Cumulus Linux.

What’s New in Cumulus Linux 4.1.1

Cumulus Linux 4.1.1 contains security bug fixes.

What’s New in Cumulus Linux 4.1.0

Cumulus Linux 4.1.0 supports new platforms, provides bug fixes, and contains several new features and improvements.

New Platforms

• Dell 5212F-ON (25G Trident3 X5)
• Mellanox SN2010 with 32G RAM (25G Spectrum)

The following platforms are supported in Cumulus Linux 3.7 and are now supported in Cumulus Linux 4.1:

• Dell S4128F-ON
• Dell S4128T-ON
• Dell S4148F-ON
• Dell S4148T-ON
• Dell Z9100-ON
• Dell S5048F-ON
• Delta AG9032v1
• Delta AG9032v2
• Edgecore AS4610-54P
• Edgecore AS4610-54T
• Edgecore AS5712-54X
• Edgecore AS7312-54XS
• Edgecore AS7712-32X
• Mellanox SN2010
• Mellanox SN2100
• Penguin Arctica 3200xlp
• Penguin Arctica 4804ip
• Penguin Arctica 4804iq
• Penguin Arctica 4806xp
• QCT QuantaMesh BMS T4048-IX2
• QCT QuantaMesh BMS T5032-LY6-x86
• QCT QuantaMesh BMS T3048-LY7
• SuperMicro SSE-C3632S
• SuperMicro SSE-G3648B
• SuperMicro SSE-X3648S

New Features and Enhancements

• Static and dynamic NAT
• Configuration to disable EVPN flooding
• Dynamic access control lists for 802.1X interfaces at the port level
• Unequal Cost Multipath (UCMP) with BGP link bandwidth
• Syntax checker for the /etc/cumulus/datapath/traffic.conf file
• Port security also now supported on Mellanox switches
• EVPN PIM also now supported on Mellanox switches
• Port breakout configuration without restarting switchd on Mellanox switches
• Custom layer 2 RASH heavy profiles available on Mellanox switches
• Control link-local multicast across a static VXLAN tunnel
• IPv6 route replacement option to maintain resilient hashing for IPv6 flows
• Default reserved VLAN range reduced to 3600-3999
• The default MTU has changed to 9216 from 1500
• New NCLU commands: net show neighbors, net show sensor output, net show system leds net show system asic, net show system ztp

Unsupported Platforms

These platforms are not supported in Cumulus Linux 4.1. They are supported in Cumulus Linux 3.7 until that release reaches its end of life.

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

The following platforms are supported in Cumulus Linux 3.7 but are not yet supported in Cumulus Linux 4.1. Support for these platforms will be added in a future Cumulus Linux release.

• Delta AG7648
• QCT QuantaMesh BMS T3048-LY8
• QCT QuantaMesh BMS T3048-LY9