The multi-functional platform increases server performance by offloading Hypervisor vSwitch networking functions such as tunnel termination, security policy enforcement and address translation onto the leaf switch, allowing more work to be accomplished by the compute pool, saving equipment costs and lowering power and cooling. Additionally, as it’s EOS-based with a comprehensive set of features, the same device can be used in multiple roles, each with its own profile, ensuring consistent management and provisioning.
"With Tofino, Barefoot has proven that programmability can be delivered without compromise on performance and I believe that future switch chips will be fully programmable - there is no reason not to. It allows protocols to be lifted up and out of hardware into software. Arista’s first Tofino based platforms do exactly that, using P4 to deliver customized profiles to their customers. Programmable switches take differentiation in the market to a whole new level. This is going to get interesting.” said Nick McKeown, Chief Scientist and Co-Founder at Barefoot Networks.
The 7170 Series with Arista EOS supports a rich set of both data plane and control plane features and capabilities with a programmable SDK for deployment in either a leaf or spine role in two-tier cloud networks with the default cloud profiles. Additional custom profiles can be defined in P4 to add features, alter the operation or change the lookups performed across the data plane for packets passing through the 7170 switch.