What's new in Cumulus Linux 2.0

Date: 29 October 2013 | Author: Aurelie Fonteny

Today, we’re excited to announce Cumulus Linux 2.0, as it empowers next generation datacenters with new platforms, new architectures, and new operation models.


New Platforms


The new platforms support the latest industry standard silicon, Broadcom StrataXGS Trident II, with 2.56Tbps of I/O bandwidth, 1.440Bpps, low latency starting at 500ns, efficient power under 2W/port, flexible L2/L3 scale for flexible leaf/spine/edge designs and the latest features such as VXLAN for network virtualization. The flexible port density enables various form factors, such as 32x40G, 96x10G + 8x40G, or 48x10G + 6x40G.

Cumulus Linux 2.0 supports a complete portfolio of platforms optimized for 1G, 10G, or 40G with various port densities and with choice of vendors (see the hardware compatibility list).

New Architectures



The addition of new platforms such as 32x40G wire-rate platforms enables simplified 40G spine designs with simplified cabling and improved performance. Where fixed platforms were relevant mostly for data center access in the past, the addition of wire-rate high density 10G/40G platforms enable leaf-spine designs for large scale two-tier designs with 1000s of servers.

The new platforms serve multiple purposes. The new hardware provides flexibility for allocating capacity between the L2 and L3 tables, so prefixes, host routes and L2 tables could be tweaked based on requirements in different places in the network.

Cumulus Linux 2.0 also supports network virtualization. Users can initiate and terminate VXLAN tunnels at wire-rate for their own applications and Cumulus Linux integrates with VMware NSX.

New Operational Models



Cumulus Linux 2.0 continues to simplify data center operations. Cumulus Linux 1.5 brought the Linux revolution to networking, enabling the same automation and orchestration tools in the network that were available in the server world. Version 2.0 goes one step beyond by enabling not only an ecosystem of open source applications but also working with partners to take their commercial versions and make them ready for Cumulus Linux. One such example is CFEngine: it has an open source agent, but most enterprises would use the commercial version, so it is going to be part of the distribution.

Anyone looking to simplify orchestration via OpenStack can also take advantage of a Cumulus Networks Neutron ML2 Plugin and Cumulus Linux’s integration with network virtualization.