Arista Networks is a computer networking company headquartered in Santa Clara, California, USA. The company designs and sells multilayer network switches to deliver software-defined networking (SDN) solutions for large datacenter, cloud computing, high-performance computing and high-frequency trading environments. Arista's products include an array of 10/40/100 Gigabit Ethernet low-latency cut-through switches, including the 7124SX, which remained the fastest switch using SFP+ optics through September 2012, with its sub-500nslatency, as well as the 7500 series, Arista’s award-winning modular 10G/40G/100Gbit/s switch. Arista's own Linux-based network operating system, EOS (Extensible Operating System), runs on all Arista products.
Andy Bechtolsheim co-founded Sun Microsystems in 1982 and was its chief hardware designer. In 1995, David Cheritonco-founded Granite Systems with Bechtolsheim, a company that developed Gigabit Ethernet products, which was acquired by Cisco Systems in 1996. In 1998, Stanford students Sergey Brin and Larry Page met with Bechtolsheim on Cheriton's front porch. At the meeting, Bechtolsheim gave them their first cheque to fund their company, Google, and Cheriton matched the investment. In 2001, Cheriton and Bechtolsheim founded another start up, Kealia, which was acquired by Sun in 2004. From 1996 to 2003, Bechtolsheim and Cheriton occupied executive positions at Cisco, leading the development of the Catalyst product line, along with Kenneth Duda who had been Granite Systems' first employee.
In 2004, the three then went on to found Arastra. Thanks to their previous investment in Google, Bechtolsheim and Cheriton were able to fund the company themselves. In May 2008, Jayshree Ullal left Cisco after 15 years at the company, and was appointed CEO of Arista in October 2008.