Update: Ciena expands Net reach with Cyras buy

Moving deeper into one of the hottest networking markets, optical equipment maker Ciena on Tuesday said it has agreed to buy privately held Cyras Systems in a stock deal valued at about $2.6 billion.

Ciena said Cyras' family of products will help extend its reach from the core of service provider networks to metropolitan access and other large customer networks. Full story. -- Melanie Austria Farmer, Special to ZDNet Inter@ctive Investor