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                                                                     EXHIBIT 10R


                                    CORRECTED
                                  AMENDMENT TO
                        1992 EMPLOYEE STOCK PURCHASE PLAN
                          (AS AMENDED THROUGH MAY 1999)


     This document is an amendment to the 1992 Employee Stock Purchase Plan of
Computer Network Technology Corporation (the "Company") as amended through May,
1999.

                                   WITNESSETH:

     WHEREAS, the Company has previously adopted the 1992 Employee Stock
Purchase Plan (the "Plan"); and

     WHEREAS, the Plan has previously been amended; and

     WHEREAS, Section 16 of the Plan permits the Board of Directors to amend the
Plan; and

     WHEREAS, at its March 19, 2001 meeting the Board of Directors approved
amendments to the Plan; and

     WHEREAS, this document corrects the amendment previously executed in
connection with the amendments approved at the March 19, 2001 meeting.

     NOW, THEREFORE, in consideration of the premises, the 1992 Employee Stock
Purchase Plan (as amended through May 1999) is further amended effective for
Purchase Periods beginning on or after June 1, 2001 as follows:

     1. Section 2.1 is amended by deleting subsection (b) and inserting in lieu
thereof the following: "(b) Intentionally omitted."

     2. Section 2.1 is further amended deleting subsection (h) and inserting in
lieu thereof the following:

     (h) "Compensation" means the wages, tips and other compensation paid to a
Participant by the Company or an Affiliate and reportable in the box designated
"wages, tips, other compensation" on Treasury Form W-2 (or any comparable
successor box or form) for the calendar year but determined without regard to
any rules that limit the remuneration included in wages based on the nature or
location of the employment or the services performed (such as the exception for
agricultural labor in section 3401(a)(2) of the Code). Compensation shall be
determined on a cash basis. Provided, however, that Compensation shall include
elective contributions made by the Company or an Affiliate on behalf of a
Participant that are not includible in gross income under sections 125,
402(a)(8), 402(h), 403(b), 414(h)(2) and 457 of the Code including elective
contributions authorized by a Participant under a cafeteria plan or any other
qualified cash or deferred arrangement under section 401(k) of the Code.
Provided, further that Compensation shall exclude all of the following: (i)
reimbursements or other expense allowances including foreign service allowances,
station allowances, foreign tax equalization payment and other similar payments;
(ii) welfare and fringe benefits (both cash and noncash) including third-party
sick pay (i.e., short-term and long-term disability insurance benefits), income
imputed from insurance coverages and premiums, employee discounts and other
similar amounts, payments for vacation or sick leave accrued but not taken,
final payments on account of termination of employment (i.e., severance
payments) and settlement for accrued but unused vacation and sick leave; (iii)
moving expenses; (iv) deferred compensation (both when deferred and when
received); (v) the Saturday Night Stay-over Program; and (vi) any income related
to the exercise of nonqualified stock options, the sale of stock within eighteen
months of receipt under the Employee Stock Purchase Plan, the stock options
received pursuant to any Company or Affiliate stock option plan, or the vesting
of restricted stock under any Company or Affiliate stock award plan.



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     3. Section 2.1 is further amended by deleting subsection (j) and inserting
in lieu thereof the following: "(j) Intentionally omitted."

     4. Section 6.2 is amended by deleting the second sentence of said Section
and inserting in lieu thereof the following: "An Eligible Employee may elect
withholding from Compensation in any whole percentage from 0% to 10%."

     5. Section 6.2 is further amended by substituting the dollar and amount of
"$5,000" for the dollar and amount of "$2,500" where they appear in the third
sentence of said Section.

     6. Except as amended hereby, the Plan shall continue in full force and
effect.

     IN WITNESS WHEREOF, the undersigned has executed this Amendment as of the
19th day of March, 2001.


                                       COMPUTER NETWORK TECHNOLOGY CORPORATION


                                       By: /s/Gregory T. Barnum
                                          --------------------------------------
                                          Gregory T. Barnum
                                          Its Chief Financial Officer