Exhibit 11 COMPUTER NETWORK TECHNOLOGY CORPORATION Statement Re: Computation of Net Income Per Basic and Diluted Share (in thousands, except per share data) (Unaudited) Weighted Average Per Share Net Income Shares Outstanding Amount ---------- ------------------ ------ Three Months Ended March 31, 1998: Basic $ 369 22,106 $.02 Dilutive effect of employee stock purchase awards and options(1) -- 137 -- ---------------------------------------- Diluted $ 369 22,243 $.02 ======================================== 1997: Basic $ 376 23,400 $.02 Dilutive effect of employee stock purchase awards and options(1) -- 372 -- ---------------------------------------- Diluted $ 376 23,772 $.02 ======================================== (1) For the three months ended March 31, 1998 and 1997, potential dilutive securities primarily consisting of outstanding stock options and shares issuable under the employee stock purchase plan are included in the computation of diluted net income per share using the treasury stock method.