SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549 
                      ----------------------------------

                           SCHEDULE 14A INFORMATION

                   Proxy Statement Pursuant to Section 14(a)
                    of the Securities Exchange Act of 1934
        
Filed by the Registrant [X]

Filed by a Party other than the Registrant [_] 

Check the appropriate box:

[_]  Preliminary Proxy Statement        [_]  Confidential, for Use of the 
                                             Commission Only (as permitted by
                                             Rule 14a-6(e)(2))
[_]  Definitive Proxy Statement 

[X]  Definitive Additional Materials 

[_]  Soliciting Material Pursuant to Section 240.14a-11(c) or Section 240.14a-12

                          NETWORK SYSTEMS CORPORATION
- --------------------------------------------------------------------------------
               (Name of Registrant as Specified In Its Charter)

                          NETWORK SYSTEMS CORPORATION
- --------------------------------------------------------------------------------
   (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

   
Payment of Filing Fee (Check the appropriate box):

[X]  $125 per Exchange Act Rules 0-11(c)(1)(ii), 14a-6(i)(1), 14a-6(i)(2)
     or Item 22(a)(2) of Schedule 14A.

[_]  $500 per each party to the controversy pursuant to Exchange Act Rule
     14a-6(i)(3).

[_]  Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

   
     (1) Title of each class of securities to which transaction applies:

     -------------------------------------------------------------------------


     (2) Aggregate number of securities to which transaction applies:

     -------------------------------------------------------------------------


     (3) Per unit price or other underlying value of transaction computed
         pursuant to Exchange Act Rule 0-11 (Set forth the amount on which
         the filing fee is calculated and state how it was determined):

     -------------------------------------------------------------------------
      

     (4) Proposed maximum aggregate value of transaction:

     -------------------------------------------------------------------------


     (5) Total fee paid:

     -------------------------------------------------------------------------

[_]  Fee paid previously with preliminary materials.
     
[X]  Check box if any part of the fee is offset as provided by Exchange
     Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee
     was paid previously. Identify the previous filing by registration statement
     number, or the Form or Schedule and the date of its filing.
     
     (1) Amount Previously Paid:                               $105,746.28
 
     -------------------------------------------------------------------------


     (2) Form, Schedule or Registration Statement No.:            33-55343

     -------------------------------------------------------------------------


     (3) Filing Party:                      STORAGE TECHNOLOGY CORPORATION
      
     -------------------------------------------------------------------------


     (4) Date Filed:                                     September 2, 1994

     -------------------------------------------------------------------------

Notes:




 
         DISCUSSION POINTS FOR NETWORK SYSTEMS' DIRECTORS AND OFFICERS
         -------------------------------------------------------------
           IN CONNECTION WITH THE NETWORK SYSTEMS/STORAGETEK MERGER
           --------------------------------------------------------

The following material is being used by directors and officers of Network 
Systems for solicitation purposes.

1.  THE BOARD OF DIRECTORS OF NETWORK SYSTEMS STRONGLY BELIEVES THAT THE MERGER 
    WITH STORAGETEK IS A WIN-WIN FOR BOTH COMPANIES.

    * THE BOARD OF NETWORK SYSTEMS BELIEVES THE TWO COMPANIES WOULD ACHIEVE 
      SIGNIFICANT STRATEGIC AND OPERATING SYNERGIES BY COMBINING RESOURCES, 
      PROVIDING ACCESS TO EACH OTHER'S LOYAL CUSTOMER BASES AND REALIZING 
      ECONOMIES OF SALE. The combined company would be the largest in the 
      internetworking marketplace with revenues in the neighborhood of $2 
      billion and would be better equipped to take advantage of the 
      high-growth segments of an increasingly competitive industry.

    * THE MERGER SHOULD PROVIDE NSC ACCESS TO SOME 14,000 PRIME ACCOUNTS. NSC 
      and StorageTek typically sell into the same Fortune 1000 accounts. STK 
      has 19,000 installations; NSC has 5,000.

    * THE MERGER BETWEEN NETWORK SYSTEMS AND STORAGETEK WOULD BE THE FIRST 
      MERGER BETWEEN A MAJOR ENTERPRISE STORAGE PROVIDER AND A LEADER IN 
      HIGH-PERFORMANCE COMPUTER NETWORKING PRODUCTS. This would provide, for 
      the first time, coverage of two quickly growing components of the 
      marketplace: inter-networking and storage. The convergence of the two 
      companies' strategy and vision for "enterprise-wide networking" is a 
      unique synergy of the merger.

    * THE TWO COMPANIES EXPECT TO COMBINE SMOOTHLY. StorageTek has indicated 
      that Tom Gooch, one of the top members of STK's management team, will 
      augment the Network Systems management team and help ensure a smooth  
      transition. In addition, the two companies' sales and customer support 
      organizations have worked closely together through a joint marketing 
      relationship since 1992. Network Systems Board of Directors believes 
      these key organizations are well positioned to combine quickly and 
      efficiently.

2.  EVEN WITH THE REDUCED STOCK PRICE OF STK IN THE MARKETPLACE, THE NETWORK 
    SYSTEMS BOARD OF DIRECTORS REAFFIRMS ITS OPINION THAT THE TERMS OF THE 
    MERGER AGREEMENT ARE FAVORABLE FOR NETWORK SYSTEMS SHAREHOLDERS. THE 
    BOARD BELIEVES THAT SHAREHOLDERS ARE BETTER SERVED BY THE UPSIDE POTENTIAL 
    OF THE COMBINED ENTITIES THAN BY REMAINING INDEPENDENT.


 
Discussion Points
- -continued-

    * The Board of Directors of Network Systems believes that there is 
      significant risk to shareholders of remaining independent in a 
      marketplace that is increasingly competitive and where Network Systems 
      would have considerable difficulty in breaking into new, highly 
      competitive segments of the internetworking marketplace without the 
      depth and breadth of the resources StorageTek would provide.

    * The tax-free exchange of shares of .2618 shares of StorageTek for each 
      Network Systems share would allow shareholders to continue to hold an 
      equity interest in a larger, more diversified company.

3.  THE BOARD OF NSC BELIEVES A MERGER WITH STORAGE TECHNOLOGY REPRESENTS A 
    SYNERGISTIC BUSINESS OPPORTUNITY AS OPPOSED TO THE SUBSTANTIAL RISK 
    INHERENT IN THE COMPANY REMAINING AN INDEPENDENT ENTITY.

    * THE COMPANY IS REALLY AT A FORK IN THE ROAD. TO REMAIN INDEPENDENT, THE 
      BOARD BELIEVES NSC WOULD NEED TO BE RESTRUCTURED TO IMPROVE ITS NEAR-TERM 
      PERFORMANCE BY DE-EMPHASIZING REVENUE GROWTH (HOLD TO A LOWER GROWTH 
      PROFILE) AND REDUCING COSTS,INCLUDING RESEARCH AND DEVELOPMENT BUDGETS.
 
    * THE BOARD HAS DETERMINED THAT, IN THE ABSENCE OF A MERGER WITH STK, A NEW 
      LEADER WITH AN EXPERTISE IN TURNAROUND SITUATIONS AND A STRATEGIC VISION 
      FOR GROWTH WOULD BE REQUIRED TO AUGMENT NSC'S MANAGEMENT TEAM.

    * NETWORK SYSTEMS' NEW PRODUCTS OFFER OPPORTUNITY ALONG WITH SIGNIFICANT 
      RISK. Although some new products (for example, Enterprise Routing Switch 
      and Security Router) will be shipped shortly, the planned volume is 
      anticipated to ramp up significantly throughout the year. The Company's 
      1995 Operating Plan is dependent in part upon the successful introduction 
      of the new products and either delays in the introduction of these 
      products or lack of acceptance by the market of these products would 
      adversely affect the achievement of this Plan.

    * NSC'S NEW PRODUCTS WILL BE COMPETING WITH WELL ESTABLISHED MARKET PLAYERS 
      WHOSE DEEP POCKETS AND ACCESS TO CUSTOMERS IS EXTREMELY FORMIDABLE. The 
      Board believes without a merger the Company will need to hold to a lower 
      growth profile.

    * MANY OF NETWORK SYSTEMS' EXISTING PRODUCTS ARE IN MATURE MARKETS AND ARE 
      SUBJECT TO PRICE EROSION.

February 28, 1995