Arista Networks (ANET 0.37%) has been in red-hot form on the stock market of late, jumping an impressive 61% from the 52-week low it hit on April 7. This terrific rally in Arista stock can be attributed to the broader recovery in tech stocks in the past three-and-a-half months, which is evident from the 34% surge in the tech-laden Nasdaq Composite index.But is Arista's business growing at a good enough pace to justify this recent surge? More importantly, would it be a good idea to buy Arista Networks in ant ...