Core Insights - Arista Networks (NYSE:ANET) experienced a 9% drop in stock price by the end of market action on Friday, despite providing higher-than-expected guidance during its Analyst Day event [2] - Analysts and investors generally responded positively to Arista's business update, indicating confidence in the company's future performance [2] - Goldman Sachs reaffirmed its Buy rating for Arista Networks, suggesting continued optimism among analysts regarding the company's prospects [2]