Exhibit 10.1
    

    

    

    
      

    

    

    

    
      To:        John
      Major
    

    
      From:   Brian
      Bronson
    

    
      Date:     April
      23, 2012
    

    
      Re:        Transition
      Agreement
    

    
      

      John,
    

    
      As we discussed, you and Radisys
      Corporation (the "Company") have come to a mutual agreement regarding
      your transition from Radisys and that your employment will end on June
      29, 2012 ("Termination Date"). This transition agreement (the
      "Transition Agreement") contains the details and terms of this
      transition, including an additional transition bonus for completing
      transition milestones. This letter will also outline the severance
      benefits that you will be eligible for, provided you sign and do not
      revoke your Amended and Restated Executive Severance Agreement, dated
      November 4, 2008, between you and the Company (the "Severance
      Agreement").
    

    
      Upon your employment termination, you will
      be eligible to receive a transition bonus in the amount of $150,000
      provided you comply with the terms and conditions of this Transition
      Agreement. This transition bonus will be paid out in one lump sum (less
      tax and other applicable deductions) within 30 days following the
      "Effective Date" of the Release of Claims to be executed pursuant to the
      terms of the Severance Agreement (the 'Release of Claims"). This amount
      will be delivered to you directly and not direct deposited.
    

    
      In order to receive the transition bonus
      mentioned above, you will be expected to successfully complete the
      following:
    

    
    	
          
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            Successfully assist in the
            transition of your responsibilities to Robert Telles and Mac Lavier
          

        
	
          
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            Continue to be a
            productive/supportive member of executive staff
          

        
	
          
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            Drive 1H objectives to the best of
            your ability (1H Revenue, Sanmina Transfer and ongoing process
            around full 2012 MCOS targets)
          

        


    

    
      In addition to the transition bonus, you
      will also be eligible to receive the following severance and benefits
      associated with your termination from the Company:
    


    	
          
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            You must remain in your current role
            and in good standing through June 29, 2012.
          

          
             
          

        
	
          
            ●
          

        	

        	
          
            Your receipt of the benefits
            described in this letter is contingent upon your signing and not
            revoking the Release of Claims or the Severance Agreement provided
            by the Company no sooner than your Termination Date and in any
            event within 21 days (or, if required by applicable law, 45 days)
            following your Termination Date.
          

        


    

    

    


    	
           
        	
          
            RadiSys Corporation
          

        
	

        	
          
            5445 NE Dawson Creek Drive
          

        
	

        	
          
            Hillsboro, OR 97124
          

        
	

        	
          
            Tel: (503) 615-1100
          

        
	

        	
          
            Fax: (503) 615-1150
          

        
	

        	
          
            www.radisys.com
          

        


    

    

    

    
      
        

        

      

      
        

        

        
          


        

      

      
        

        

      

    

    
      

    


    	
          
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            Upon your employment termination,
            you will receive the severance amount pursuant to Section 3.1(a)
            of the Severance Agreement, provided you comply with the terms of
            the Severance Agreement and the terms and conditions of this
            Transition Agreement. This severance amount is equal to six months
            of base salary, which will be $132,600 (i.e. six times your
            monthly base salary of $22,100). This amount will be paid out in
            one lump sum (less tax and other applicable deductions) within 30
            days following the "Effective Date" of the Release of Claims. The
            severance check is to be delivered to you directly and not direct
            deposited.
          

          
             
          

        
	
          
            ●
          

        	

        	
          
            Pursuant to Section 3.1(b) of the
            Severance Agreement, the Company will pay the COBRA premiums due
            for you and your currently enrolled dependents for six months
            beginning as of your Termination Date.
          

          
             
          

        
	
          
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            The Company will reimburse you for
            up to $5,000 of eligible outplacement services upon presentation
            of acceptable documentation.
          

          
             
          

        
	
          
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            You will have three months or ninety
            days as outlined in your Option Agreements following the
            Termination Date with the Company to exercise any vested but
            unexercised stock options. At the end of the three-month period,
            you forfeit the ability to exercise vested stock options. Any
            unvested restricted stock units (RSU's) will be forfeited and
            cancelled as the date of termination. You may at any time sell the
            shares of Radisys common stock received when the RSU's vested.
            There is no term on
            shares received upon vesting of RSU's and therefore no expiration
            date. Vested RSU's shares can be sold at any time. Unvested LTIP
            shares as per the program will be forfeited and cancelled as of
            the Termination Date.
          

          
             
          

        
	
          
            ●
          

        	

        	
          
            You acknowledge that you will be
            forfeiting your rights to any 2012 variable pay amounts. The
            Radisys variable pay plans state that you have to be an active
            employee at the time of payout.
          

          
             
          

        
	
          
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            The Company does not intend to
            contest any unemployment claims as long as you are otherwise
            eligible and the above stated conditions are met.
          

          
             
          

        
	
          
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            You are reminded that you have
            signed a Confidentiality, Non-Competition and Assignment of
            Inventions Agreement that is in effect for a period of one year
            from your Termination Date, which restricts employment with direct
            competitors of the Company. If you consider employment
            opportunities with an entity that may be considered a competitor
            of the Company, you must have agreement from the Company prior to
            accepting employment.
          

          
             
          

        
	
          
            ●
          

        	

        	
          
            There is no obligation, by either
            party, to engage in future consulting framework / agree
          

        
	
          
            Please sign this agreement to
            acknowledge and agree to the above details and terms.
          

        


    

    

    


    	
           
        	
          
            RadiSys Corporation
          

        
	

        	
          
            5445 NE Dawson Creek Drive
          

        
	

        	
          
            Hillsboro, OR 97124
          

        
	

        	
          
            Tel: (503) 615-1100
          

        
	

        	
          
            Fax: (503) 615-1150
          

        
	

        	
          
            www.radisys.com
          

        


    

    
      
        

        

      

      
        

        

        
          


        

      

      
        

        

      

    

    
      

    

    
      

    

    
      

      

      

      

      


    


    	
           
        	
          
            RadiSys Corporation
          

        
	

        	
          
            5445 NE Dawson Creek Drive
          

        
	

        	
          
            Hillsboro, OR 97124
          

        
	

        	
          
            Tel: (503) 615-1100
          

        
	

        	
          
            Fax: (503) 615-1150
          

        
	

        	
          
            www.radisys.com