exv10w12wa






Exhibit 10.12A




BIGBAND NETWORKS, INC.

TRANSITION SERVICES AGREEMENT



          This Transition Services Agreement (the “Agreement”) is entered into as of March 5, 2010 (the
“Effective Date”) by and between BigBand Networks, Inc., having a principal place of business at
475 Broadway Street, Redwood City, California 94063 (the “Company”) and Maurice Castonguay (“Mr.
Castonguay”, and collectively with the Company, the “Parties”).


          WHEREAS, the Company has employed Mr. Castonguay since March 12, 2008; and


          WHEREAS, the Parties have agreed to terminate his employment with the Company on May 1,
2010 (the “Termination Date”); and


          WHEREAS, Mr. Castonguay and the Company desire to provide for a smooth transition of
the services currently provided by Mr. Castonguay to another person;


          NOW THEREFORE, in consideration of the foregoing, the Parties agree as follows:



     1. Release Agreement. In consideration of the benefits conferred pursuant to Section
2 hereof, on the Effective Date, Mr. Castonguay shall execute a release agreement substantially in
the form attached hereto as Exhibit A, and on the Termination Date, Mr. Castonguay shall
execute a supplemental release substantially in the form attached hereto as Exhibit B in exchange for the consideration outlined in Exhibit B.



     2. Consulting Services.


          2.1 Scope of Work. Following the Termination Date until termination of this Agreement
by either Party (the “Consulting Period”), Mr. Castonguay will provide transitional consulting
services (the “Services”) to the Company as designated by Amir Bassan-Eskenazi, including making
himself available to the Company for no more than 10 hours per week. Mr. Castonguay shall use his
reasonable efforts to perform any such services in a professional and workman-like manner.


          2.2 Amount. During the Consulting Period, the Company shall pay Mr. Castonguay a
retainer of $5,000 per month, plus Mr. Castonguay shall continue to be a ‘service provider’ under
the Company’s stock incentive plans and all options and restricted stock units granted to Mr. Castonguay shall continue to
vest during the Consulting Period. Mr. Castonguay shall be solely liable for any federal, state,
or local withholding, or other payroll taxes relating to performance of the Services under this
Section 2. Mr. Castonguay shall be reimbursed for all reasonable travel and living expenses
incurred in the performance of said services hereunder to the extent such expense has been
authorized by the Company’s chief executive officer in advance.


          2.3 Independence. From and after the Termination Date through the end of the
consulting under this Agreement, Mr. Castonguay’s relationship with the Company will be that of an
independent contractor and not that of an employee. Mr. Castonguay shall have control over the
method, manner, and means of the performance of Services, subject to the express provisions of this
Agreement. Mr. Castonguay will not be eligible for any employee benefits, nor will the Company
make deductions from payments made to Mr. Castonguay for taxes, all of which will be Mr.
Castonguay’s responsibility. During the term of the consulting arrangement, Mr. Castonguay will
have no authority to enter into contracts that bind the Company or create obligations on the part
of the Company without the prior written authorization of the Company.



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     3. Term and Termination.


          3.1 Term. Mr. Castonguay shall serve as a consultant to the Company commencing on the
May 2, 2010 and terminating on August 31, 2010, unless terminated earlier pursuant to Section 3.2
hereof.


          3.2 Termination. After the Effective Date, Mr. Castonguay  may terminate this Agreement
at any time on 10 days’ written notice; and the Company may
terminate this Agreement at any time on 60 days’ written notice.
In the event of any early termination pursuant to this Section 3.2,
Mr. Castonguay shall be entitled to compensation for Services
performed under this Agreement prior to the effective date of such
termination. Mr. Castonguay’s obligations relating to confidentiality
pursuant to Section 5 hereof shall survive termination of this Agreement.



     4. Consulting or Other Services for Competitors. Mr. Castonguay represents and
warrants that he will not, during the term of this Agreement, perform any consulting or other
services for any company, person or entity whose business or proposed business in any way involves
products or services that could reasonably be determined to be competitive with the products or
services or proposed products or services of the Company.



     5. Confidentiality. Mr. Castonguay understands that the Company possesses and will
possess Confidential Information that is important to its business and may disclose information in
the course of this Agreement that is considered to be trade secrets, highly confidential, or
sensitive. As a result, during the term of this Agreement, Mr. Castonguay hereby agrees that,
during the term of this Agreement and the performance of Services under Section 2 hereof, he will
continue to be bound by and acquit himself in accordance with that certain At Will Employment,
Confidential Information, Invention Assignment and Arbitration Agreement between the Company and
himself dated March 13, 2008 (“Proprietary Rights Agreement”), a copy of which is attached hereto
as Exhibit C, including, but not limited to, the non-competition and non-solicitation
provisions thereof.



     6. Miscellaneous.


          6.1 Amendments and Waivers. Any term of this Agreement may be amended or waived only
with the written consent of both parties.


          6.2 Sole Agreement. This Agreement, including the Exhibits hereto, constitutes the
sole agreement of the parties and supersedes all oral negotiations and prior writings with respect
to the subject matter hereof.


          6.3 Notices. Any notice required or permitted by this Agreement shall be in writing
and shall be deemed sufficient upon receipt, when delivered personally or by a
nationally-recognized delivery service (such as Federal Express or UPS), or 48 hours after being
deposited in the U.S. mail as certified or registered mail with postage prepaid, if such notice is
addressed to the party to be notified at such party’s address as set forth above or as subsequently
modified by written notice.


          6.4 Choice of Law. The laws of the State of California shall govern the validity,
interpretation, construction and performance of this Agreement, without giving effect to the
principles of conflict of laws.


          6.5 Severability. If one or more provisions of this Agreement are held to be
unenforceable under applicable law, then such provision shall be excluded from this Agreement, the
balance 


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of the Agreement shall be interpreted as if such provision were so excluded and the balance
of the Agreement shall be enforceable in accordance with its terms.



          6.6 Arbitration. Any dispute or claim arising out of or in connection with any
provision of this Agreement, excluding Sections 5 hereof, will be finally settled by binding
arbitration in accordance with the rules of the American Arbitration Association by one arbitrator
appointed in accordance with said rules; the party deemed by the arbitrator to have lost the
arbitration shall be responsible for all expenses of such arbitration. The arbitrator shall apply
California law, without reference to rules of conflicts of law or rules of statutory arbitration,
to the resolution of any dispute. Judgment on the award rendered by the arbitrator may be entered
in any court having jurisdiction thereof. Notwithstanding the foregoing, the parties may apply to
any court of competent jurisdiction for preliminary or interim equitable relief, or to compel
arbitration in accordance with this paragraph, without breach of this arbitration provision.



The parties have executed this Agreement on March 5, 2010.




	 	 	 	 	 	 	 
	BigBand Networks, Inc.	 	 	 	Maurice Castonguay
	 
	 	 	 	 	 	 
	By:

	 	/s/ Rob Horton
	 	 	 	/s/ Maurice Castonguay
	 

	 	 
	 	 	 	 
	 

	 	Name: Rob Horton	 	 	 	 
	 

	 	Title:   Sr. VP and General Counsel	 	 	 	 






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EXHIBIT A

GENERAL RELEASE OF CLAIMS




     1. Maurice Castonguay (“Employee”) and BigBand Networks, Inc., a Delaware corporation
(“BigBand”), entered into an offer letter dated March 12, 2008 (the “Employment Agreement”).
Employee and BigBand, intending to be legally bound hereby, agree to the terms set forth in the
Transition Services Agreement and this General Release of Claims (the “Agreement”). This Agreement
will become effective on the eighth day after it is signed by Employee (the “Effective Date”),
provided that Employee has not revoked this Agreement (by written notice to BigBand’s General
Counsel or a similarly situated executive officer of BigBand) prior to that date.



     2. In exchange for the release of the claims provided for herein, BigBand will provide
Employee with the consulting arrangement under the Transition Services Agreement.



     3. In exchange for the benefits under this Agreement to which Employee is not otherwise
entitled, Employee, for himself and his respective legal successors and assigns, forever releases,
discharges and acquits BigBand and its respective current and former parent companies and
predecessors, and each of its and their respective divisions, subsidiaries, shareholders, officers,
directors, current and former employees, insurers, attorneys, accountants, agents, affiliates,
legal successors and assigns (collectively the “Released Parties”), from any and all claims,
demands, damages, debts, liabilities, actions and causes of action (collectively, “Claims”) of
every kind and nature whatsoever, whether now known or unknown, which Employee now has, or ever
had, against any of those Released Parties based upon or arising out of any matter, cause, fact,
thing, act or omission whatsoever occurring or existing at any time up to and including the date on
which Employee signs this Agreement, including, without limitation, (i) all claims related to his
employment with BigBand or the termination of that employment; (ii) any contract or tort claims,
including, without limitation, claims for breach of contract, breach of the implied covenant of
good faith and fair dealing, wrongful termination, retaliation, fraud, defamation or infliction of
emotional distress; and (iii) any claims for national origin, race, sex, age, sexual orientation,
medical condition, disability, or other discrimination or harassment arising under the California
Fair Employment and Housing Act (as amended), the Civil Rights Act of 1964 (as amended), the Age
Discrimination in Employment Act (as amended) (“ADEA”), the Americans With Disabilities Act, or any
other law or statute (all of which are hereinafter referred to as and included within the “Released
Matters”).



     4. Employee understands and agrees that this Supplemental Release is intended to cover and
does cover all claims or possible claims of every nature and kind whatsoever, whether known or
unknown, suspected or unsuspected, or hereafter discovered or ascertained, and all rights under
section 1542 of the Civil Code of California are hereby expressly waived. Employee hereto
acknowledges that he is familiar with section 1542, which reads as follows:




A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR DOES NOT KNOW OR
SUSPECT TO EXIST IN HIS FAVOR AT THE TIME OF EXECUTING THE RELEASE, WHICH IF KNOWN
BY HIM MUST HAVE MATERIALLY AFFECTED HIS SETTLEMENT WITH THE DEBTOR.



     Employee hereto expressly, knowingly, and intentionally waives and relinquishes any and all
rights that he has under section 1542, as well as under any other similar state or federal statute
or common law principle.



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     5. THIS AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE CONSTRUED
IN ACCORDANCE WITH AND GOVERNED BY THE LAWS
 OF THE STATE OF CALIFORNIA, WITHOUT REGARD TO THE CONFLICTS OR CHOICE OF LAW RULES OF SUCH STATE OR
OF ANY OTHER JURISDICTION.




     6. This Agreement shall inure to the benefit of the successors of BigBand and shall be binding
upon the Employee, his heirs, executors, administrators and successors.



     7. Employee acknowledges and agrees that he shall continue to be bound by and comply with the
terms of the At Will Employment, Confidential Information, Invention Assignment and Arbitration
Agreement between BigBand and Employee dated March 13, 2008 (“Proprietary Rights Agreement”).



     8. Employee agrees that he will not, at any time in the future, (i) make any statements to any
person who is not an Affiliate of BigBand that could reasonably be deemed to be critical or
disparaging with respect to any of the Released Parties or any products or services developed,
marketed or sold by BigBand or any subsidiary or affiliate of BigBand, or (ii) participated in
tortuous interference with the contracts and relationships of BigBand. BigBand (in the person of
the CEO, the members of the executive staff and the Board of Directors) agrees that it will not, at
any time in the future, make any statements to any person to third parties that could reasonably be
deemed to be critical or disparaging of Employee.



     9. Employee agrees that for a period of one (1) year following the Separation Date, he will
not, without the prior written consent of BigBand, on behalf of himself or any other person or
entity, directly or indirectly, encourage or solicit any employee of BigBand or any of its
subsidiaries or affiliates to terminate his or his employment with BigBand or any of its
subsidiaries or affiliates.



     10. Employee agrees that he will not voluntarily provide assistance, information or advice of
any kind, directly or indirectly (including through agents or attorneys), to any person or entity
in connection with such person or entity’s assertion of any claim or cause of action of any kind,
in court, arbitration or otherwise, against any of the Released Parties, and he shall not suggest,
induce or encourage any person or entity to do so. The foregoing sentence shall not prohibit
Employee from testifying truthfully under subpoena or providing other assistance under compulsion
of law.



     11. Employee hereby agrees to direct all inquiries, demands, requests for information or other
communications regarding this Agreement to the General Counsel of BigBand Networks, Inc. Employee
shall not contact any employee of BigBand other than the individual listed above with regard to the
contents hereof.



     12. Employee agrees to respond to BigBand’s reasonable requests in connection with any
existing or future litigation, arbitrations, mediations, claims or investigations brought by or
against or involving BigBand or any of its affiliates, agents, officers, directors or employees,
whether internal, administrative, civil or criminal in nature, in which BigBand reasonably deems
Employee’s cooperation necessary or useful. In such matters, Employee agrees to provide BigBand
with advice, assistance and/or information, including explaining matters of a factual nature,
providing sworn statements, participating in discovery and trial preparation, and giving testimony.
Employee also agrees to promptly send BigBand copies of all correspondence and documents (for
example, but not limited to, subpoenas) Employee receives in connection with any such legal
proceeding or other matters related to BigBand. Employee further agrees to act in good faith to
furnish the information and cooperation required by this paragraph. BigBand will act in good faith
so that the requirement to furnish such information and cooperation does not create an undue
hardship for Employee.



     13. In the event of any dispute or claim relating to or arising out of Employee’s employment
relationship with BigBand, this Agreement, or the termination of Employee’s employment with
BigBand, Employee and BigBand agree that all such disputes shall be fully, finally and exclusively
resolved by



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binding arbitration conducted by a single arbitrator in San Mateo County, California,
and further agreed that the party deemed by the arbitrator to have lost the arbitration shall be
responsible for all expenses of such arbitration. . Employee and BigBand hereby knowingly and
willingly waive their respective rights to have any such disputes or claims tried to a judge or
jury. Notwithstanding the foregoing provisions of this Section 13, Employee covenants and agrees
not to assert any Claims against the Released Parties, in any forum or proceeding, which Employee
has released pursuant to Section 3 above.




     14. This Agreement constitutes the entire agreement between the parties with respect to the
subject matter hereof and supersedes all prior agreements (except the change of control provisions
included in Employee’s offer letter and option acceleration provisions and features that will
remain in effect until the Termination Date (as defined in the Transition Services Agreement)),
understandings, negotiations, promises, representations and warranties, both written and oral,
except for the Proprietary Rights Agreement between BigBand and Employee and any stock option
agreements between Employee and BigBand. To the extent that provisions of this Agreement conflict
with any other agreement between Employee and BigBand, the provisions of this Agreement shall
govern. This Agreement may not be modified or amended, except by a document signed by a duly
authorized executive officer of BigBand and Employee.



     15. In the event that any provision or portion of this Agreement is determined to be invalid
or unenforceable for any reason, in whole or in part, the remaining provisions of the Agreement
shall be unaffected thereby and shall remain in full force and effect to the fullest extent
permitted by applicable law.



     16. EMPLOYEE UNDERSTANDS THAT HE SHOULD CONSULT WITH AN ATTORNEY PRIOR TO SIGNING THIS
AGREEMENT AND THAT HE IS GIVING UP ANY LEGAL CLAIMS HE HAS AGAINST BIGBAND RELEASED ABOVE BY
SIGNING THIS AGREEMENT. EMPLOYEE FURTHER UNDERSTANDS THAT HE MAY HAVE UP TO 21 DAYS TO CONSIDER
THIS AGREEMENT, THAT HE MAY REVOKE IT AT ANY TIME DURING THE 7 DAYS AFTER HE SIGNS IT, AND THAT IT
SHALL NOT BECOME EFFECTIVE UNTIL THAT 7-DAY PERIOD HAS PASSED. EMPLOYEE ACKNOWLEDGES THAT HE IS
SIGNING THIS AGREEMENT KNOWINGLY, WILLINGLY AND VOLUNTARILY IN EXCHANGE FOR THE CONSIDERATION
PROVIDED FOR IN SECTION 2.



	 	 	 	 	 
	Dated:  March 5, 2010 	BIGBAND NETWORKS, INC.

 	 
	 	By:  	/s/ Rob Horton
 	 
	 	 	Rob Horton, General Counsel 	 
	 	 	 	 
	 
	Dated:  March 5, 2010 	EMPLOYEE

 	 
	 	/s/ Maurice Castonguay
 	 
	 	Maurice Castonguay 	 
	 	 	 



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EXHIBIT B

SUPPLEMENTAL RELEASE OF CLAIMS





     1. This supplemental release between BigBand Networks, Inc. (“BigBand”) will become
effective on the eighth day after it is signed (the “Effective Date”) by Maurice Castonguay
(“Employee”), provided that Employee has not revoked this Agreement (by written notice to BigBand’s
General Counsel or a similarly situated executive officer of BigBand) prior to that date.



     In exchange for the release of the claims provided for herein, BigBand will provide Employee
with the following:




	 	a)	 	a lump sum severance payment of $120,000.04, less applicable taxes and
other withholdings as determined by BigBand’s payroll department; such severance
payment will be made to Employee within five business days after the Effective
Date;
	 
	 	b)	 	the premiums necessary to continue the group health insurance coverages
(medical, vision and dental, but not disability or life) for Employee and his
dependents through the earlier of (i) April 30, 2011, if Employee timely elects to
continue such coverages under federal COBRA law (it being understood that such
payments will be made to the BigBand’s health insurance provider), or (ii) the date
on which Employee first becomes enrolled in a new group health insurance program
with another employer; and
	 
	 	c)	 	up to three months of outplacement services. In order to initiate and
utilize this service Employee must contact his local HR representative.





     Consistent with BigBand’s practice, Employee will receive his final paycheck (including
payment for any accrued but unused vacation) on the last date of employment. Employee acknowledges
and agrees that, except for consideration outlined in this Section 1, BigBand has paid to Employee
on May 1, 2010 (the “Separation Date”) all compensation, including, but not limited to, any and all
wages, commissions, bonuses, and accrued but unused vacation, that Employee earned during his
employment with BigBand until and including the Separation Date. Employee further acknowledges and
agrees that he will cease to accrue vacation as of the Separation Date. The Employment Agreement is
hereby terminated and is of no further force or effect, and Employee shall not be entitled to any
further monetary payments, other remuneration or other benefits of any kind, including, but not
limited to, any stock option grants, stock option vesting or other equity-based compensation from
BigBand or from any other person or entity that acts or has acted on BigBand’s behalf, other than
(i) as expressly set forth in this Section 1 or (ii) as outlined in that certain Transition
Services Agreement dated March 5, 2010.



     2. Employee agrees that, within ten (10) days after the Separation Date, he will submit his
final documented expense reimbursement statement reflecting all business expenses he incurred
through the Separation Date, if any, for which he seeks reimbursement. BigBand will reimburse
Employee for these expenses pursuant to its regular business practices.



     3. With respect to any stock options previously granted to Employee by BigBand those options
and restricted stock units will (i) cease vesting on the date that Employee is no longer deemed a ‘service provider’ under the
Company’s stock incentive plans and (ii) continue to be subject to and governed by the terms and
conditions of any applicable stock option and restricted stock unit agreements between Employee and BigBand, and the
governing equity incentive plans.



     4. In exchange for the benefits under this Agreement to which Employee is not otherwise
entitled, Employee, for himself and his respective legal successors and assigns, forever releases,
discharges



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and acquits BigBand and its respective current and former parent companies and
predecessors, and each of its and their respective divisions, subsidiaries, shareholders, officers,
directors, current and former employees, insurers, attorneys, accountants, agents, affiliates,
legal successors and assigns (collectively the “Released Parties”), from any and all claims,
demands, damages, debts, liabilities, actions and causes of action (collectively, “Claims”) of
every kind and nature whatsoever, whether now known or unknown, which Employee now has, or ever
had, against any of those Released Parties based upon or arising out of any matter, cause, fact,
thing, act or omission whatsoever occurring or existing at any time up to and including the date on
which Employee signs this Agreement, including, without limitation, (i) all claims related to his
employment with BigBand or the termination of that employment; (ii) any contract or tort claims,
including, without limitation, claims for breach of contract, breach of the implied covenant of
good faith and fair dealing, wrongful termination, retaliation, fraud, defamation or infliction of
emotional distress; and (iii) any claims for national origin, race, sex, age, sexual orientation,
medical condition, disability, or other discrimination or harassment arising under the California
Fair Employment and Housing Act (as amended), the Civil Rights Act of 1964 (as amended), the Age
Discrimination in Employment Act (as amended) (“ADEA”), the Americans With Disabilities Act, or any
other law or statute (all of which are hereinafter referred to as and included within the “Released
Matters”).




     5. Employee understands and agrees that this Supplemental Release is intended to cover and
does cover all claims or possible claims of every nature and kind whatsoever, whether known or
unknown, suspected or unsuspected, or hereafter discovered or ascertained, and all rights under
section 1542 of the Civil Code of California are hereby expressly waived. Employee hereto
acknowledges that he is familiar with section 1542, which reads as follows:




A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR DOES NOT KNOW OR
SUSPECT TO EXIST IN HIS FAVOR AT THE TIME OF EXECUTING THE RELEASE, WHICH IF KNOWN
BY HIM MUST HAVE MATERIALLY AFFECTED HIS SETTLEMENT WITH THE DEBTOR.



Employee hereto expressly, knowingly, and intentionally waives and relinquishes any and all rights
that he has under section 1542, as well as under any other similar state or federal statute or
common law principle.




     6. Employee agrees to return to BigBand, not later than the Separation Date, all BigBand
documents (and all copies thereof) and other BigBand property that Employee has had in his
possession at any time (other than those materials that Ravi Narula deems immaterial to BigBand’s
business), including, without limitation, BigBand files, notes, notebooks, correspondence,
memoranda, agreements, drawings, records, business plans, forecasts, financial information,
specifications, computer-recorded information, and tangible property (including, without
limitation, company-issued laptop computer, credit cards, entry cards, identification badges and
keys), and any materials of any kind that contain or embody any proprietary or confidential
information of BigBand (and all reproductions thereof in whole or in part).



     7. THIS AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE CONSTRUED
IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF CALIFORNIA, WITHOUT REGARD TO THE
CONFLICTS OR CHOICE OF LAW RULES OF SUCH STATE OR OF ANY OTHER JURISDICTION.



     8. This Agreement shall inure to the benefit of the successors of BigBand and shall be binding
upon the Employee, his heirs, executors, administrators and successors.



     9. Notwithstanding the termination of the Employment Agreement, Employee acknowledges and
agrees that he shall continue to be bound by and comply with the terms of the At Will Employment,



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Confidential Information, Invention Assignment and Arbitration Agreement between BigBand and
Employee dated March 13, 2008 (“Proprietary Rights Agreement”).




     10. Employee agrees that he will not, at any time in the future, (i) make any statements to
any person who is not an Affiliate of BigBand that could reasonably be deemed to be critical or
disparaging with respect to any of the Released Parties or any products or services developed,
marketed or sold by BigBand or any subsidiary or affiliate of BigBand, or (ii) participated in
tortuous interference with the contracts and relationships of BigBand. BigBand (in the person of
the CEO, the members of the executive staff and the Board of Directors) agrees that it will not, at
any time in the future, make any statements to any person to third parties that could reasonably be
deemed to be critical or disparaging of Employee.



     11. Employee agrees that, for a period of one (1) year following the Separation Date, he will
not, without the prior written consent of BigBand, on behalf of himself or any other person or
entity, directly or indirectly, encourage or solicit any employee of BigBand or any of its
subsidiaries or affiliates to terminate his or his employment with BigBand or any of its
subsidiaries or affiliates.



     12. Employee agrees that he will not voluntarily provide assistance, information or advice of
any kind, directly or indirectly (including through agents or attorneys), to any person or entity
in connection with such person or entity’s assertion of any claim or cause of action of any kind,
in court, arbitration or otherwise, against any of the Released Parties, and he shall not suggest,
induce or encourage any person or entity to do so. The foregoing sentence shall not prohibit
Employee from testifying truthfully under subpoena or providing other assistance under compulsion
of law.



     13. Employee hereby agrees to direct all inquiries, demands, requests for information or other
communications regarding this Agreement to the General Counsel of BigBand Networks, Inc. Employee
shall not contact any employee of BigBand other than the individual listed above with regard to the
contents hereof or any other request for information or cooperation.



     14. Employee agrees to respond to BigBand’s reasonable requests in connection with any
existing or future litigation, arbitrations, mediations, claims or investigations brought by or
against or involving BigBand or any of its affiliates, agents, officers, directors or employees,
whether internal, administrative, civil or criminal in nature, in which BigBand reasonably deems
Employee’s cooperation necessary or useful. In such matters, Employee agrees to provide BigBand
with advice, assistance and/or information, including explaining matters of a factual nature,
providing sworn statements, participating in discovery and trial preparation, and giving testimony.
Employee also agrees to promptly send BigBand copies of all correspondence and documents (for
example, but not limited to, subpoenas) Employee receives in connection with any such legal
proceeding or other matters related to BigBand. Employee further agrees to act in good faith to
furnish the information and cooperation required by this paragraph. BigBand will act in good faith
so that the requirement to furnish such information and cooperation does not create an undue
hardship for Employee.



     15. In the event of any dispute or claim relating to or arising out of Employee’s employment
relationship with BigBand, this Agreement, or the termination of Employee’s employment with
BigBand, Employee and BigBand agree that all such disputes shall be fully, finally and exclusively
resolved by binding arbitration conducted by a single arbitrator in San Mateo County, California,
and further agreed that the party deemed by the arbitrator to have lost the arbitration shall be
responsible for all expenses of such arbitration. . Employee and BigBand hereby knowingly and
willingly waive their respective rights to have any such disputes or claims tried to a judge or
jury. Notwithstanding the foregoing provisions of this
Section 15, Employee covenants and agrees not to assert any Claims against the Released
Parties, in any forum or proceeding, which Employee has released pursuant to Section 4 above.



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     16. In the event that any provision or portion of this Agreement is determined to be invalid
or unenforceable for any reason, in whole or in part, the remaining provisions of the Agreement
shall be unaffected thereby and shall remain in full force and effect to the fullest extent
permitted by applicable law.



     17. EMPLOYEE UNDERSTANDS THAT HE SHOULD CONSULT WITH AN ATTORNEY PRIOR TO SIGNING THIS
AGREEMENT AND THAT HE IS GIVING UP ANY LEGAL CLAIMS HE HAS AGAINST BIGBAND RELEASED ABOVE BY
SIGNING THIS AGREEMENT. EMPLOYEE FURTHER UNDERSTANDS THAT HE MAY HAVE UP TO 21 DAYS TO CONSIDER
THIS AGREEMENT, THAT HE MAY REVOKE IT AT ANY TIME DURING THE 7 DAYS AFTER HE SIGNS IT, AND THAT IT
SHALL NOT BECOME EFFECTIVE UNTIL THAT 7-DAY PERIOD HAS PASSED. EMPLOYEE ACKNOWLEDGES THAT HE IS
SIGNING THIS AGREEMENT KNOWINGLY, WILLINGLY AND VOLUNTARILY IN EXCHANGE FORTHE CONSIDERATION
PROVIDED FOR IN SECTION 1.



The parties have executed this Agreement on May ___, 2010.




	 	 	 	 	 	 	 
	BigBand Networks, Inc.	 	 	Maurice Castonguay
	 
	 	 	 	 	 	 
	By:
	 	  
	 	 
	 

	 	Name:	 	 	 	 
	 

	 	Title:	 	 	 	 






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Exhibit C

Proprietary Rights Agreement





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