We weren't quite sure what to do with the announced in April. It's complicated in that Cisco already owned 80% of the switch maker. The reason we say it's difficult to judge the value of this transaction is that Cisco says the maximum potential payout for Nuova could reach $678 million based on the revenue of Nuova products over three measurement periods. The first measurement period will be early in Cisco's fiscal year 2010, the second measurement in late fiscal year 2010, and the third in mid fiscal year 2011. Nuova is behind Cisco's Nexus 5000 . 

IDG News Service contributed to this report.