Arista Networks, Inc. (formerly Arastra)[3] is an American computer networking company headquartered in Santa Clara, California. The company designs and sells multilayer network switches to deliver software-defined networking (SDN) for large datacenter, cloud computing, high-performance computing, and high-frequency trading environments. These products include 10/25/40/50/100/200/400/800 gigabit low-latency cut-through Ethernet switches. Arista's Linux-based network operating system, Extensible Operating System (EOS), runs on all Arista products.
In 2004, Andy Bechtolsheim, Kenneth Duda and David Cheriton founded Arastra (later renamed Arista[3]). Bechtolsheim and Cheriton were able to fund the company themselves.[4] In May 2008, Jayshree Ullal left Cisco after 15 years at the firm. She was appointed CEO of Arista in October 2008.
In June 2014, Arista Networks had its initial public offering on the New York Stock Exchange under the symbol ANET.
In December 2014, Cisco filed two lawsuits against Arista alleging intellectual property infringement.,[7] and the United States International Trade Commission issued limited exclusion and cease-and-desist orders concerning two of the features patented by Cisco[8] and upheld an import ban on infringing products.[9] In 2016, on appeal, the ban was reversed following product changes and two overturned Cisco patents, and Cisco's claim was dismissed.[10][11] In August 2018, Arista agreed to pay Cisco US$400 million as part of a settlement that included a release for all claims of infringement by Cisco, dismissal of Arista's antitrust claims against Cisco, and a 5-year stand-down between the companies.
In August 2018, Arista Networks acquired Mojo Networks.[13] In September 2018, Arista Networks acquired Metamako and integrated their low latency product line as the 7130 series.[14] In February 2020, Arista acquired Big Switch Networks.[15] In October 2020, Arista acquired Awake Security.
Arista's CEO, Jayshree Ullal, was named to Barron's list of World's Best CEOs in 2018 and 2019.
In August 2022, Arista Networks acquired Pluribus Networks, a unified cloud network company, for an undisclosed sum.