October 2, 2006

Vitesse Semiconductor Corporation
741 Calle Plano
Camarillo, CA  93012
Attention: Christopher R. Gardner, Chief Executive Officer

Dear Chris:

This letter confirms and sets forth the terms and conditions of the compensation
arrangements referred to in section 2(d) of the engagement letter dated
April 27, 2006 (the "Engagement Letter") between Alvarez & Marsal, LLC ("A&M")
and Vitesse Semiconductor Corporation (the "Company").  Section 2(d) reads as
follows:

          The Company and A&M recognize that it is appropriate  that A&M receive
     incentive  compensation  for its  services  hereunder,  in  addition to the
     compensation set forth above. To establish such incentive compensation, A&M
     and the Company will seek to reach  agreement  within 30 days from the date
     hereof on the amount of such incentive compensation and the terms on which
     it shall be payable.

Pursuant to Section 2(d) of the Engagement Letter, Vitesse and A&M agree to the
following Success Fee arrangements:

Warrants

1) 150,000 "Initial Issue" Warrants.  The Company will issue to A&M, as
   promptly as practicable following the date hereof, Series A Warrants which
   shall contain the following basic provisions:

a) Number of Series A Warrants - 150,000
b) Number of Shares Subject Thereto - Each of such 150,000 Warrants shall
   initially be exercisable into one share of the Company's Common Stock,
   subject to potential anti-dilution adjustment
c) Strike Price - $1.20 per share, subject to potential anti-dilution adjustment
d) Issue Date - October 2, 2006
e) Exercise Period - 5 years from the date of issue
f) Method of Payment of Exercise Price - Cash or through a cashless exercise,
   at A&M's option



g) Registration Rights - The Company and A&M shall enter into a Warrant
   Registration Rights Agreement which will provide for the Company to, until
   such shares are sold or saleable under paragraph (k) of Rule 144 under the
   Securities Act of 1933, as amended (the "Securities Act"), register with the
   Securities and Exchange Commission (the "SEC") the shares acquired upon the
   exercise of the Warrants or underlying then outstanding Warrants through:
      (i)   a shelf registration statement on Form S-3 (or successor form),
            which registration statement will be filed with the SEC within 15
            business days after the Company becomes eligible to use such form;
      (ii)  demand registrations rights which may be exercised by A&M on two
            occasions following such time as the Company has available to it
            requisite financial statements that would be required under
            Regulation S-X in order to file such registration statement, which
            registration statements the Company will undertake to file within
            30 days following any such demand and use its reasonable efforts to
            obtain effectiveness as promptly as practicable; and
      (iii) piggyback registration rights (unlimited except for an underwriter
            cutback that would apply to shares proposed to be issued by the
            Company, which cutback would be pro rata with shares as to which
            other holders of registration rights have a right to include in
            such registration statement).
h) Put Rights - If (i) the Company is not eligible to file a registration
   statement on or prior to October 15, 2007 or is so eligible but fails to
   comply with the rights provided to A&M pursuant to its registration rights
   described above, (ii) the Company consolidates with or merges into another
   entity (other than a subsidiary for the purposes of creating a holding
   company pursuant to Section 251(g) of the Delaware General corporation Law)
   in one or a series of related transactions and the stockholders of the
   Company immediately before such transaction do not own at least a majority
   of the outstanding voting capital stock of the surviving corporation
   immediately after such transaction or transactions, (iii) the Company
   conveys, transfers, leases or licenses all or substantially all of its
   assets to another person or entity, (iv) the first day a majority of the
   members of the Company's Board of Directors are (x) not members of the Board
   on the date hereof or (y) not nominated for election by, or are elected to
   the Board with the approval of, a majority of the Continuing Directors who
   were members of the Board at the time of such nomination or election, or
   (v) the Company acts to liquidate or dissolve (matters (i) - (iv),
   collectively, a "Put Event"), A&M will have the right to put the Warrants
   back to the Company for a price equal to the difference between the average
   trailing 15 day market price of the Company's Common Stock and the Strike
   Price, which amount shall be paid in cash.



i) Anti Dilution Provisions - The Warrants shall contain customary anti-dilution
   protection, including with respect to the issuance of shares of the Company's
   Common Stock or securities convertible, exercisable or exchangeable for
   shares of the Company's Common Stock, at a price lower than the lesser of
   the then trading price of the Company's Common Stock and the then Strike
   Price, except pursuant to employee benefit plans of the Company.

2) 150,000 "Delayed Issue" Warrants - The Company will issue to A&M, as promptly
   as practicable following the earliest of (a) the date of delivery to KPMG LLC
   (or other auditor employed by the Company) the Company's consolidated
   financial statements as at and for the three years ended September 2006
   (or such lesser period as is agreed in good faith by the Company, KPMG LLC
   and A&M (the "Lesser Audited Period")), or (b) upon the occurrence of a Put
   Event, Series B Warrants which shall contain the following basic provisions:

a) Number of Warrants - 150,000
b) Number of Shares Subject Thereto - Each of such 150,000 Warrants shall be
   initially exercisable into one share of the Company's Common Stock, subject
   to potential anti-dilution adjustment for the same events that would trigger
   anti-dilution adjustment under the Series A Warrants that occur at any time
   after the issuance of the Series A Warrants.
c) Strike Price - $1.20 per share, subject to potential anti-dilution adjustment
   for the same events that would trigger anti-dilution adjustment under the
   Series A Warrants that occur at any time after the issuance of the Series A
   Warrants.]
d) Exercise Period - 5 years from the date of issuance of the Series B Warrants
e) Method of Payment -  Cash or through a cashless exercise, at A&M's option
f) Registration Rights - The same registration rights as outlined above with
   respect to the Series A Warrants (without additional demand registration
   rights).
g) Put Rights - Identical to those to be contained in the Series A Warrants.
h) Anti Dilution Provisions - Identical to those to be contained in the Series A
   Warrants.

Cash Success Fee

1) Balance Sheet Related

a) $250,000 - Earned and payable as at the date hereof based on A&M's services
   in connection with the Company's completed funding with Tennenbaum.
b) $50,000 - Completion of Follow on Financing - Earned and payable upon
   funding of the second funding round, as permitted under the $25 million
   carveout under the Tennenbaum financing.
c) $150,000 - Negotiation of Debentureholder Dispute Resolution - Earned and
   payable upon setting the terms, acceptable to the Board of Directors of the
   Company, upon which the Company shall seek to settle a dispute with the
   holders of the Company's 1.50% Convertible Subordinated Debentures due 2024
   regarding an alleged default with regard to the filing of financial
   statements with the SEC and Trustee under such Indenture with respect to the
   Indentures.



2) Restatement Related

a) $75,000 - Implementation of Remediation Plan - Earned and payable upon (i)
   approval by the special committee of the Company's Board of Directors of a
   remediation plan being developed by the Company with the help of A&M and
   (ii) the hiring of the key personnel contemplated by the remediation plan.
b) $125,000 - Completion of Restated Financial Statements and Delivery thereof
   to Auditors - Earned and payable at the time the Company is to issue the
   Series B Warrants as provided above; provided, however, that, if the Company,
   KPMG LLC and A&M agree to the Lesser Audited Period, then in lieu of such
   amount, the Company may elect  for the Company to pay to A&M an amount equal
   to the 10% discount on A&M's fees that are associated with the restatement
   efforts being afforded to the Company on the time expended by employees of
   A&M other than Shawn C. A. Hassel.

The Company represents and warrants to A&M that it's entering into and delivery
of this Agreement has been authorized by the Company's Board of Directors.

If the foregoing is acceptable to you, kindly sign the enclosed copy to
acknowledge your agreement with its terms.

                                        Very truly yours,

                                        Alvarez & Marsal, LLC



                                        By:  /s/SHAWN C.A. HASSEL
                                             Shawn C. A. Hassel
                                             Managing Director


Accepted and Agreed:

Vitesse Semiconductor Corporation



By:  /s/CHRISTOPHER R. GARDNER
     Christopher R, Gardner
     Chief Executive Officer