Until recently, a lot of people had probably never even heard of Arista Networks (ANET 1.04%). Now, it's one of the hottest tickers on the market. The network company had significant success in its business of routers, network switches, and similar types of hardware devices, and Wall Street is taking notice. The stock has beaten the S&P 500 handsomely over the last 12 months, and the story seems primed to keep going.There are a lot of tech stocks out there, and a ton of them have seen big gains in the short ...