<PAGE>   1

     As filed with the Securities and Exchange Commission on June 23, 2000

                                               Registration No. 333-____________
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                    FORM S-8

                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933

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

                           ACCELERATED NETWORKS, INC.
             (Exact name of registrant as specified in its charter)


             DELAWARE                                     77-0442752
   (State or other jurisdiction                (IRS Employer Identification No.)
 of incorporation or organization)

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

                                301 SCIENCE DRIVE
                           MOORPARK, CALIFORNIA 93021
               (Address of principal executive offices) (Zip Code)

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

                            2000 STOCK INCENTIVE PLAN
                        2000 EMPLOYEE STOCK PURCHASE PLAN
                            (Full title of the Plans)

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

                                 SURESH NIHALANI
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                           ACCELERATED NETWORKS, INC.
                                301 SCIENCE DRIVE
                           MOORPARK, CALIFORNIA 93021
                     (Name and address of agent for service)
                                 (805) 553-9680
          (Telephone number, including area code, of agent for service)

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

                         CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
==============================================================================================================================
                                                                      Proposed              Proposed
        Title of Securities to be            Amount to be         Maximum Offering     Maximum Aggregate         Amount of
                Registered                   Registered(1)       Price per Share(2)    Offering Price(2)      Registration Fee
   -----------------------------------  ----------------------   ------------------    -----------------      ----------------
<S>                                       <C>                    <C>                   <C>                    <C>
   2000 Stock Incentive Plan
   Common Stock, $0.001 par value          7,293,336 shares           $15.00             $109,400,040            $28,882.00

   2000 Employee Stock Purchase Plan
   Common Stock, $0.001 par value           500,000 shares            $15.00             $  7,500,000            $ 1,980.00
                                                                                                                 ==========
   Aggregate Registration Fee                                                                                    $30,862.00
==============================================================================================================================
</TABLE>

(1)  This Registration Statement shall also cover any additional shares of
     Common Stock which become issuable under the Employee Stock Purchase Plan
     or the 2000 Stock Incentive Plan by reason of any stock dividend, stock
     split, recapitalization or other similar transaction effected without the
     Registrant's receipt of consideration which results in an increase in the
     number of the outstanding shares of Registrant's Common Stock.

(2)  Calculated solely for purposes of this offering under Rule 457(h) of the
     Securities Act of 1933, as amended, on the basis of the highest proposed
     selling price per share of Registrant's Common Stock in the initial public
     offering of such Common Stock.

================================================================================
<PAGE>   2

                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference

         Accelerated Networks, Inc. (the "Registrant") hereby incorporates by
reference into this Registration Statement the following documents previously
filed with the Securities and Exchange Commission (the "Commission"):

         (a)      The Registrant's Registration Statement No. 333-31732 on Form
                  S-1 filed with the Commission on March 3, 2000, as amended on
                  Form S-1/A filed with the Commission on March 28, 2000, April
                  17, 2000, June 1, 2000, June 21, 2000 and June 22, 2000, in
                  which there is set forth the audited financial statements for
                  the Registrant's fiscal year ended December 31, 1999; and

         (b)      The Registrant's Registration Statement on Form 8-A12G filed
                  with the Commission on June 1, 2000, in which are described
                  the terms, rights and provisions applicable to the
                  Registrant's outstanding Common Stock.

         All reports and definitive proxy or information statements filed
pursuant to Section 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of
1934, as amended (the "1934 Act") after the date of this Registration Statement
and prior to the filing of a post-effective amendment which indicates that all
securities offered hereby have been sold or which de-registers all securities
then remaining unsold shall be deemed to be incorporated by reference into this
Registration Statement and to be a part hereof from the date of filing of such
documents. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded
for purposes of this Registration Statement to the extent that a statement
contained herein or in any subsequently filed document which also is deemed to
be incorporated by reference herein modifies or supersedes such statement. Any
such statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this Registration Statement.

Item 4.  Description of Securities

         Not Applicable.

Item 5.  Interests of Named Experts and Counsel

         Not Applicable.

Item 6.  Indemnification of Directors and Officers

         Section 145 of the DGCL empowers a corporation to indemnify its
directors and officers and to purchase insurance with respect to liability
arising out of their capacity or status as directors and officers, provided that
this provision shall not eliminate or limit the liability of a director: (i) for
any breach of the director's duty of loyalty to the corporation or its
stockholders, (ii) for acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of law, (iii) arising under
Section 174 of the DGCL, or (iv) for any transaction from which the director
derived an improper personal benefit. The DGCL provides further that the
indemnification permitted thereunder shall not be deemed exclusive of any other
rights to which the directors and officers may be entitled under the
corporation's bylaws, any agreement, a vote of stockholders or otherwise. The
Registrant's Certificate of Incorporation eliminates the personal liability of
directors to the fullest extent permitted by Section 102(b)(7) of the DGCL and
provides that the Registrant shall fully indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding (whether civil, criminal, administrative or
investigative) by reason of the fact that such person is or was a director or
officer of the Registrant, or is or was serving at the request of the Registrant
as a director or officer of another corporation, partnership, joint venture,
trust, employee benefit plan or other enterprise, against expenses (including
attorneys' fees), judgments, fines and amounts paid in settlement actually and
reasonably incurred by such person in connection with such action, suit or
proceeding.


                                      II-1
<PAGE>   3

         The Registrant, with the approval of the Board of Directors, intends to
obtain directors' and officers' liability insurance prior to the effectiveness
of this offering. In addition, the Registrant has entered into indemnification
agreements with each of its directors. Reference is made to Exhibit 10.25 to
Registration Statement No. 333-31732.

Item 7.  Exemption from Registration Claimed

         Not Applicable.

Item 8.  Exhibits


Exhibit Number   Exhibit
--------------   -------

        4        Instruments Defining the Rights of Stockholders. Reference is
                 made to Registrant's Registration Statement No. 000-30741 on
                 Form 8-A12G, together with any exhibits thereto, which are
                 incorporated herein by reference pursuant to Item 3(b) to this
                 Registration Statement.

        5        Opinion and consent of Brobeck, Phleger & Harrison LLP.

       23.1      Consent of PricewaterhouseCoopers LLP, Independent Accountants.

       23.2      Consent of Brobeck, Phleger & Harrison LLP is contained in
                 Exhibit 5.

       24        Power of Attorney. Reference is made to page II-4 of this
                 Registration Statement.

       99.1      2000 Stock Incentive Plan.

       99.2      2000 Employee Stock Purchase Plan.

Item 9.  Undertakings

         A. The undersigned Registrant hereby undertakes: (1) to file, during
any period in which offers or sales are being made, a post-effective amendment
to this Registration Statement: (i) to include any prospectus required by
Section 10(a)(3) of the 1933 Act, (ii) to reflect in the prospectus any facts or
events arising after the effective date of this Registration Statement (or the
most recent post-effective amendment thereof) which, individually or in the
aggregate, represent a fundamental change in the information set forth in this
Registration Statement and (iii) to include any material information with
respect to the plan of distribution not previously disclosed in this
Registration Statement or any material change to such information in this
Registration Statement; provided, however, that clauses (1)(i) and (1)(ii) shall
not apply if the information required to be included in a post-effective
amendment by those clauses is contained in periodic reports filed by the
Registrant pursuant to Section 13 or Section 15(d) of the 1934 Act that are
incorporated by reference into this Registration Statement; (2) that for the
purpose of determining any liability under the 1933 Act each such post-effective
amendment shall be deemed to be a new registration statement relating to the
securities offered therein and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof; and (3) to remove
from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the Registrant's 2000
Stock Incentive Plan and Employee Stock Purchase Plan.

         B. The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the 1933 Act, each filing of the Registrant's
annual report pursuant to Section 13(a) or Section 15(d) of the 1934 Act that is
incorporated by reference into this Registration Statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.


                                      II-2
<PAGE>   4

         C. Insofar as indemnification for liabilities arising under the 1933
Act may be permitted to directors, officers or controlling persons of the
Registrant pursuant to the indemnification provisions summarized in Item 6 or
otherwise, the Registrant has been advised that, in the opinion of the
Commission, such indemnification is against public policy as expressed in the
1933 Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer, or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the 1933 Act and
will be governed by the final adjudication of such issue.


                                     II-3


<PAGE>   5

                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-8, and has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Moorpark, State of California on this 23rd day
of June, 2000.


                                           ACCELERATED NETWORKS, INC.


                                           By: /s/ SURESH NIHALANI
                                               ---------------------------------
                                                   Suresh Nihalani
                                                   President and Chief
                                                   Executive Officer

                                POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS:

         That the undersigned officers and directors of Accelerated Networks,
Inc., a Delaware corporation, do hereby constitute and appoint Suresh Nihalani
and Frederic T. Boyer and each of them, the lawful attorneys-in-fact and agents
with full power and authority to do any and all acts and things and to execute
any and all instruments which said attorneys and agents, and any one of them,
determine may be necessary or advisable or required to enable said corporation
to comply with the Securities Act of 1933, as amended, and any rules or
regulations or requirements of the Securities and Exchange Commission in
connection with this Registration Statement. Without limiting the generality of
the foregoing power and authority, the powers granted include the power and
authority to sign the names of the undersigned officers and directors in the
capacities indicated below to this Registration Statement, to any and all
amendments, both pre-effective and post-effective, and supplements to this
Registration Statement, and to any and all instruments or documents filed as
part of or in conjunction with this Registration Statement or amendments or
supplements thereof, and each of the undersigned hereby ratifies and confirms
that all said attorneys and agents, or any one of them, shall do or cause to be
done by virtue hereof. This Power of Attorney may be signed in several
counterparts.

         IN WITNESS WHEREOF, each of the undersigned has executed this Power of
Attorney as of the date indicated.

         Pursuant to the requirements of the Securities Act of 1933, as amended,
this Registration Statement has been signed below by the following persons in
the capacities and on the dates indicated.

<TABLE>
<CAPTION>
               SIGNATURE                                      TITLE                                     DATE
               ---------                                      -----                                -------------
<S>                                        <C>                                                     <C>
/s/ SURESH NIHALANI                        President, Chief Executive Officer and                  June 23, 2000
-------------------------------------      Director (Principal Executive Officer)
    Suresh Nihalani


/s/ FREDERIC T. BOYER                      Vice President, Finance and Administration,             June 23, 2000
-------------------------------------      Chief Financial Officer and Secretary
    Frederic T. Boyer                      (Principal Financial and Accounting Officer)


/s/ H.R. JOHNSON                                             Director                              June 23, 2000
-------------------------------------
    H.R Johnson


/s/ STEVEN M. KRAUSZ                                         Director                              June 23, 2000
-------------------------------------
    Steven M. Krausz


/s/ ROBERT F. KUHLING, JR.                                   Director                              June 23, 2000
-------------------------------------
    Robert F. Kuhling, Jr.


/s/ PETER T. MORRIS                                          Director                              June 23, 2000
-------------------------------------
    Peter T. Morris


/s/ LIP BU TAN                                               Director                              June 23, 2000
-------------------------------------
    Lip Bu Tan
</TABLE>


                                      II-4

<PAGE>   6

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549



                                    EXHIBITS

                                       TO

                                    FORM S-8

                                      UNDER

                             SECURITIES ACT OF 1933



                           ACCELERATED NETWORKS, INC.



<PAGE>   7

                                 EXHIBIT INDEX


     EXHIBIT
     NUMBER                      DESCRIPTION
     --------                    -----------

        4        Instruments Defining the Rights of Stockholders. Reference is
                 made to Registrant's Registration Statement No. 000-30741 on
                 Form 8-A12G, together with any exhibits thereto, which are
                 incorporated herein by reference pursuant to Item 3(b) to this
                 Registration Statement.

        5        Opinion and consent of Brobeck, Phleger & Harrison LLP.

       23.1      Consent of PricewaterhouseCoopers LLP, Independent Accountants.

       23.2      Consent of Brobeck, Phleger & Harrison LLP is contained in
                 Exhibit 5.

       24        Power of Attorney. Reference is made to page II-4 of this
                 Registration Statement.

       99.1      2000 Stock Incentive Plan.

       99.2      2000 Employee Stock Purchase Plan.
[{"type": "S-8", "sequence": "1", "filename": "0001.txt", "description": "FORM S-8", "secsgml_size_bytes": 19163}]
{"company-data": {"conformed-name": "ACCELERATED NETWORKS INC", "cik": "0001108185", "assigned-sic": "3576", "irs-number": "770442752"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-39928", "film-number": "659471"}, "business-address": {"street1": "301 SCIENCE DR.", "city": "MOOR PARK", "state": "CA", "zip": "93021", "phone": "8055539680"}, "mail-address": {"street1": "301 SCIENCE DR", "city": "MOOR PARK", "state": "CA", "zip": "93021"}}
1

     As filed with the Securities and Exchange Commission on June 23, 2000

                                               Registration No. 333-____________
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                    FORM S-8

                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933

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

                           ACCELERATED NETWORKS, INC.
             (Exact name of registrant as specified in its charter)

             DELAWARE                                     77-0442752
   (State or other jurisdiction                (IRS Employer Identification No.)
 of incorporation or organization)

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

                                301 SCIENCE DRIVE
                           MOORPARK, CALIFORNIA 93021
               (Address of principal executive offices) (Zip Code)

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

                            2000 STOCK INCENTIVE PLAN
                        2000 EMPLOYEE STOCK PURCHASE PLAN
                            (Full title of the Plans)

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

                                 SURESH NIHALANI
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                           ACCELERATED NETWORKS, INC.
                                301 SCIENCE DRIVE
                           MOORPARK, CALIFORNIA 93021
                     (Name and address of agent for service)
                                 (805) 553-9680
          (Telephone number, including area code, of agent for service)

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

                         CALCULATION OF REGISTRATION FEE
==============================================================================================================================
                                                                      Proposed              Proposed
        Title of Securities to be            Amount to be         Maximum Offering     Maximum Aggregate         Amount of
                Registered                   Registered(1)       Price per Share(2)    Offering Price(2)      Registration Fee
   -----------------------------------  ----------------------   ------------------    -----------------      ----------------
2000 Stock Incentive Plan
   Common Stock, $0.001 par value          7,293,336 shares           $15.00             $109,400,040            $28,882.00

   2000 Employee Stock Purchase Plan
   Common Stock, $0.001 par value           500,000 shares            $15.00             $  7,500,000            $ 1,980.00
                                                                                                                 ==========
   Aggregate Registration Fee                                                                                    $30,862.00
==============================================================================================================================
(1)  This Registration Statement shall also cover any additional shares of
     Common Stock which become issuable under the Employee Stock Purchase Plan
     or the 2000 Stock Incentive Plan by reason of any stock dividend, stock
     split, recapitalization or other similar transaction effected without the
     Registrant's receipt of consideration which results in an increase in the
     number of the outstanding shares of Registrant's Common Stock.

(2)  Calculated solely for purposes of this offering under Rule 457(h) of the
     Securities Act of 1933, as amended, on the basis of the highest proposed
     selling price per share of Registrant's Common Stock in the initial public
     offering of such Common Stock.

================================================================================
2

                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference

         Accelerated Networks, Inc. (the "Registrant") hereby incorporates by
reference into this Registration Statement the following documents previously
filed with the Securities and Exchange Commission (the "Commission"):

         (a)      The Registrant's Registration Statement No. 333-31732 on Form
                  S-1 filed with the Commission on March 3, 2000, as amended on
                  Form S-1/A filed with the Commission on March 28, 2000, April
                  17, 2000, June 1, 2000, June 21, 2000 and June 22, 2000, in
                  which there is set forth the audited financial statements for
                  the Registrant's fiscal year ended December 31, 1999; and

         (b)      The Registrant's Registration Statement on Form 8-A12G filed
                  with the Commission on June 1, 2000, in which are described
                  the terms, rights and provisions applicable to the
                  Registrant's outstanding Common Stock.

         All reports and definitive proxy or information statements filed
pursuant to Section 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of
1934, as amended (the "1934 Act") after the date of this Registration Statement
and prior to the filing of a post-effective amendment which indicates that all
securities offered hereby have been sold or which de-registers all securities
then remaining unsold shall be deemed to be incorporated by reference into this
Registration Statement and to be a part hereof from the date of filing of such
documents. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded
for purposes of this Registration Statement to the extent that a statement
contained herein or in any subsequently filed document which also is deemed to
be incorporated by reference herein modifies or supersedes such statement. Any
such statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this Registration Statement.

Item 4.  Description of Securities

         Not Applicable.

Item 5.  Interests of Named Experts and Counsel

         Not Applicable.

Item 6.  Indemnification of Directors and Officers

         Section 145 of the DGCL empowers a corporation to indemnify its
directors and officers and to purchase insurance with respect to liability
arising out of their capacity or status as directors and officers, provided that
this provision shall not eliminate or limit the liability of a director: (i) for
any breach of the director's duty of loyalty to the corporation or its
stockholders, (ii) for acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of law, (iii) arising under
Section 174 of the DGCL, or (iv) for any transaction from which the director
derived an improper personal benefit. The DGCL provides further that the
indemnification permitted thereunder shall not be deemed exclusive of any other
rights to which the directors and officers may be entitled under the
corporation's bylaws, any agreement, a vote of stockholders or otherwise. The
Registrant's Certificate of Incorporation eliminates the personal liability of
directors to the fullest extent permitted by Section 102(b)(7) of the DGCL and
provides that the Registrant shall fully indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding (whether civil, criminal, administrative or
investigative) by reason of the fact that such person is or was a director or
officer of the Registrant, or is or was serving at the request of the Registrant
as a director or officer of another corporation, partnership, joint venture,
trust, employee benefit plan or other enterprise, against expenses (including
attorneys' fees), judgments, fines and amounts paid in settlement actually and
reasonably incurred by such person in connection with such action, suit or
proceeding.

                                      II-1
3

         The Registrant, with the approval of the Board of Directors, intends to
obtain directors' and officers' liability insurance prior to the effectiveness
of this offering. In addition, the Registrant has entered into indemnification
agreements with each of its directors. Reference is made to Exhibit 10.25 to
Registration Statement No. 333-31732.

Item 7.  Exemption from Registration Claimed

         Not Applicable.

Item 8.  Exhibits

Exhibit Number   Exhibit
--------------   -------

        4        Instruments Defining the Rights of Stockholders. Reference is
                 made to Registrant's Registration Statement No. 000-30741 on
                 Form 8-A12G, together with any exhibits thereto, which are
                 incorporated herein by reference pursuant to Item 3(b) to this
                 Registration Statement.

        5        Opinion and consent of Brobeck, Phleger & Harrison LLP.

       23.1      Consent of PricewaterhouseCoopers LLP, Independent Accountants.

       23.2      Consent of Brobeck, Phleger & Harrison LLP is contained in
                 Exhibit 5.

       24        Power of Attorney. Reference is made to page II-4 of this
                 Registration Statement.

       99.1      2000 Stock Incentive Plan.

       99.2      2000 Employee Stock Purchase Plan.

Item 9.  Undertakings

         A. The undersigned Registrant hereby undertakes: (1) to file, during
any period in which offers or sales are being made, a post-effective amendment
to this Registration Statement: (i) to include any prospectus required by
Section 10(a)(3) of the 1933 Act, (ii) to reflect in the prospectus any facts or
events arising after the effective date of this Registration Statement (or the
most recent post-effective amendment thereof) which, individually or in the
aggregate, represent a fundamental change in the information set forth in this
Registration Statement and (iii) to include any material information with
respect to the plan of distribution not previously disclosed in this
Registration Statement or any material change to such information in this
Registration Statement; provided, however, that clauses (1)(i) and (1)(ii) shall
not apply if the information required to be included in a post-effective
amendment by those clauses is contained in periodic reports filed by the
Registrant pursuant to Section 13 or Section 15(d) of the 1934 Act that are
incorporated by reference into this Registration Statement; (2) that for the
purpose of determining any liability under the 1933 Act each such post-effective
amendment shall be deemed to be a new registration statement relating to the
securities offered therein and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof; and (3) to remove
from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the Registrant's 2000
Stock Incentive Plan and Employee Stock Purchase Plan.

         B. The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the 1933 Act, each filing of the Registrant's
annual report pursuant to Section 13(a) or Section 15(d) of the 1934 Act that is
incorporated by reference into this Registration Statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

                                      II-2
4

         C. Insofar as indemnification for liabilities arising under the 1933
Act may be permitted to directors, officers or controlling persons of the
Registrant pursuant to the indemnification provisions summarized in Item 6 or
otherwise, the Registrant has been advised that, in the opinion of the
Commission, such indemnification is against public policy as expressed in the
1933 Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer, or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the 1933 Act and
will be governed by the final adjudication of such issue.

                                     II-3
5

                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-8, and has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Moorpark, State of California on this 23rd day
of June, 2000.

                                           ACCELERATED NETWORKS, INC.

                                           By: /s/ SURESH NIHALANI
                                               ---------------------------------
                                                   Suresh Nihalani
                                                   President and Chief
                                                   Executive Officer

                                POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS:

         That the undersigned officers and directors of Accelerated Networks,
Inc., a Delaware corporation, do hereby constitute and appoint Suresh Nihalani
and Frederic T. Boyer and each of them, the lawful attorneys-in-fact and agents
with full power and authority to do any and all acts and things and to execute
any and all instruments which said attorneys and agents, and any one of them,
determine may be necessary or advisable or required to enable said corporation
to comply with the Securities Act of 1933, as amended, and any rules or
regulations or requirements of the Securities and Exchange Commission in
connection with this Registration Statement. Without limiting the generality of
the foregoing power and authority, the powers granted include the power and
authority to sign the names of the undersigned officers and directors in the
capacities indicated below to this Registration Statement, to any and all
amendments, both pre-effective and post-effective, and supplements to this
Registration Statement, and to any and all instruments or documents filed as
part of or in conjunction with this Registration Statement or amendments or
supplements thereof, and each of the undersigned hereby ratifies and confirms
that all said attorneys and agents, or any one of them, shall do or cause to be
done by virtue hereof. This Power of Attorney may be signed in several
counterparts.

         IN WITNESS WHEREOF, each of the undersigned has executed this Power of
Attorney as of the date indicated.

         Pursuant to the requirements of the Securities Act of 1933, as amended,
this Registration Statement has been signed below by the following persons in
the capacities and on the dates indicated.
SIGNATURE                                      TITLE                                     DATE
               ---------                                      -----                                -------------
/s/ SURESH NIHALANI                        President, Chief Executive Officer and                  June 23, 2000
-------------------------------------      Director (Principal Executive Officer)
    Suresh Nihalani

/s/ FREDERIC T. BOYER                      Vice President, Finance and Administration,             June 23, 2000
-------------------------------------      Chief Financial Officer and Secretary
    Frederic T. Boyer                      (Principal Financial and Accounting Officer)

/s/ H.R. JOHNSON                                             Director                              June 23, 2000
-------------------------------------
    H.R Johnson

/s/ STEVEN M. KRAUSZ                                         Director                              June 23, 2000
-------------------------------------
    Steven M. Krausz

/s/ ROBERT F. KUHLING, JR.                                   Director                              June 23, 2000
-------------------------------------
    Robert F. Kuhling, Jr.

/s/ PETER T. MORRIS                                          Director                              June 23, 2000
-------------------------------------
    Peter T. Morris

/s/ LIP BU TAN                                               Director                              June 23, 2000
-------------------------------------
    Lip Bu Tan
II-4
6

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                    EXHIBITS

                                       TO

                                    FORM S-8

                                      UNDER

                             SECURITIES ACT OF 1933

                           ACCELERATED NETWORKS, INC.
7

                                 EXHIBIT INDEX

     EXHIBIT
     NUMBER                      DESCRIPTION
     --------                    -----------

        4        Instruments Defining the Rights of Stockholders. Reference is
                 made to Registrant's Registration Statement No. 000-30741 on
                 Form 8-A12G, together with any exhibits thereto, which are
                 incorporated herein by reference pursuant to Item 3(b) to this
                 Registration Statement.

        5        Opinion and consent of Brobeck, Phleger & Harrison LLP.

       23.1      Consent of PricewaterhouseCoopers LLP, Independent Accountants.

       23.2      Consent of Brobeck, Phleger & Harrison LLP is contained in
                 Exhibit 5.

       24        Power of Attorney. Reference is made to page II-4 of this
                 Registration Statement.

       99.1      2000 Stock Incentive Plan.

       99.2      2000 Employee Stock Purchase Plan.