EXHIBIT 11 COMPUTER NETWORK TECHNOLOGY CORPORATION Statement Re: Computation of Net Income (Loss) Per Basic and Diluted shares (in thousands, except per share data) (Unaudited) Net Weighted Income Average Shares Per share (Loss) Outstanding Amount -------- --------------- --------- Three Months Ended October 31, 2002: Basic $ (864) 26,896 $ (.03) Dilutive effect of employee awards and options(1) - - - -------------------------------------------------------------------------------------- Diluted $ (864) 26,896 $ (.03) ====================================================================================== Three Months Ended October 31, 2001: Basic $ 2,398 29,923 $ .08 Dilutive effect of employee awards and options(1) - 1,272 - -------------------------------------------------------------------------------------- Diluted $ 2,398 31,195 $ .08 ====================================================================================== Nine Months Ended October 31, 2002: Basic $ (16,735) 28,574 $ (.59) Dilutive effect of employee awards and options(1) - - - -------------------------------------------------------------------------------------- Diluted $ (16,735) 28,574 $ (.59) ====================================================================================== Nine Months Ended October 31, 2001: Basic $ (4,978) 29,806 $ (.17) Dilutive effect of employee awards and options(1) - - - -------------------------------------------------------------------------------------- Diluted $ (4,978) 29,806 $ (.17) ====================================================================================== (1) Potential dilutive securities, consisting of convertible notes, outstanding stock options and shares issuable under the employee stock purchase plan, are excluded from the computation of diluted net loss per share due to their anti-dilutive effect.