The lawsuits, filed in a federal court in California, accuses Arista of infringing on 14 patents on networks and also on related copyrights.
Cisco General Counsel Mark Chandler wrote in his bog that rather than building its products and services based on new technologies developed by Arista, however, and providing legitimate competition to Cisco, Arista took a shortcut by blatantly and extensively copying the innovative networking technologies designed and developed by Cisco.
Arista was formed by former Cisco employees, including Chief Development Officer Andreas Bechtolsheim, Chief Technology Officer Kenneth Duda, and Chief Executive Officer Jayshree Ullal.
Arista said it had not yet been able to evaluate the lawsuits.
“While we have respect for Cisco as a fierce competitor and the dominant player in the market, we are disappointed that they have to resort to litigation rather than simply compete with us in products,” Arista said in a statement.