UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D
                    Under the Securities Exchange Act of 1934

                    Digi International Inc. (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                   253798 10 2
                                 (CUSIP Number)

              c/o Greenbaum, Rowe, Smith, Ravin, Davis & Himmel LLP
                             W. Raymond Felton, Esq.
                              99 Wood Avenue South
                                  P.O. Box 5600
                          Woodbridge, New Jersey 07095
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notice and Communications)

                                  March 5, 2002
             (Date of Event which requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
Schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See 'SS'240.13d-7 for other
parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be filed for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).








                                  SCHEDULE 13D

                              CUSIP NO. 253798 10 2


1.       NAMES OF REPORTING PERSONS.
         I.R.S. Identification Nos. of above persons (entities only)

         Sorrento Networks Corporation
         Federal Identification No.  22-2367234


2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

          (a)     Not Applicable
          (b)     Not Applicable


3.       SEC USE ONLY


4.       SOURCE OF FUNDS*

         Not applicable.


5.       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
         ITEMS 2(d) OR 2(e)  ___

         Not Applicable

6.       CITIZENSHIP OR PLACE OF ORGANIZATION
         New Jersey



NUMBER OF                           7.      SOLE VOTING POWER
SHARES                                      2,324,683
BENEFICIALLY
OWNED BY                            8.      SHARED VOTING POWER
EACH                                        0
REPORTING
PERSON                              9.      SOLE DISPOSITIVE POWER
WITH                                        2,324,683

                                    10.     SHARED DISPOSITIVE POWER
                                            0

11.      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         2,324,683







12.      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES* ___


13.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         Sorrento Networks Corporation owns 11% of the outstanding common stock
         of Digi International Inc.


14.      TYPE OF REPORTING PERSON*

         CO

Item 1.  Security and Issuer

         (a) The title of the class of equity securities to which this statement
             relates is common stock.

         (b) The name and address of the principal executive office of the
             issuer is:

                  Digi International Inc.
                  11001 Bren Road East
                  Minnetonka, MN 55343

Item 2.  Identity and Background

         The reporting person is Sorrento Networks Corporation, a corporation
organized under the laws of the State of New Jersey. Its principal business is
designing, manufacturing and marketing optical networking products for use in
intra-city (also known as "metropolitan" or "metro") networks. Its principal
place of business is located at 9990 Mesa Rim Road, San Diego, California 92121.

         During the last five years, the reporting person has not been convicted
in a criminal proceeding (excluding traffic violations or similar misdemeanors).

         During the last five years, the reporting person has not been a party
to a civil proceeding of a judicial or administrative body of competent
jurisdiction and as a result of such proceeding was or is subject to a judgment,
decree or final order enjoining future violations of, or prohibiting or
mandating activities subject to, federal or state securities laws or finding any
violation with respect to such laws.

Item 3.  Source and Amount of Funds or Other Consideration

         Not Applicable

Item 4.  Purpose of Transaction

         The reporting person has no current plans regarding its Digi
International shares.

         The reporting person has no plans or proposals which relate to or would
result in:

         (a) An extraordinary corporate transaction, such as a merger,
reorganization or liquidation, involving the Issuer or any of its subsidiaries;

         (b) A sale or transfer of a material amount of assets of the Issuer or
any of its subsidiaries;

         (c) Any material change in the present capitalization or dividend
policy of the Issuer;









         (d) Any other material change in the Issuer's business or corporate
structure, including but not limited to, if the issuer is a registered
closed-end investment company, any plans or proposals to make any changes in its
investment policy for which a vote is required by Section 13 of the Investment
Company Act of 1940;

         (e) Changes in the Issuer's charter, by-laws or instruments
corresponding thereto or other actions which may impede the acquisition or
control of the Issuer by any person;

         (f) Causing a class of securities of the Issuer to be delisted from a
national securities exchange or to cease to be authorized to be quoted in an
inter-dealer quotation system of a registered national securities association.

         (g) A class of equity securities of the issuer becoming eligible for
termination of registration pursuant to Section 12(g)(4) of the Act; or

         (h) Any action similar to any of those enumerated above.


Item 5.  Interest in Securities of the Issuer

              The aggregate number and percentage of the class of securities
identified pursuant to Item 1 beneficially owned by the reporting person is
2,324,683 shares or 11%.


Item 6.  Contracts, Arrangements, Understandings or Relationships with Respect
         to Securities of the Issuer.

         None.


Item 7.  Material to be Filed as Exhibits

         There are no exhibits filed with this Schedule.

Signature

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


                                         Sorrento Networks Corporation


                                          /s/ Joe R. Armstrong
                                          --------------------
March 11, 2002                            Joe R. Armstrong
                                          Chief Financial Officer



                        STATEMENT OF DIFFERENCES

The section symbol shall be expressed as...................................'SS'