<PAGE> 1
EXHIBIT 24.1
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS:
I, the undersigned, do hereby make, constitute and appoint Steven M.
Bauman and Stanley E. Kazmierczak, and each of them, my true and lawful
attorneys-in-fact and agents, each with full power of substitution, in any or
all of my offices and capacities with VINA Technologies, Inc. as shown below, to
execute for me and on my behalf one or more registration statements on Form S-8
(the "Registration Statements") and any and all amendments and supplements
thereto, including post-effective amendments, relating to the VINA Technologies,
Inc. Employee Stock Purchase Plan, and to the resale by Nancy Smith of common
stock of VINA Technologies, Inc. acquired upon the exercise of options issued
under one or more of the Vina Technologies, Inc. 1996 Stock Option/Stock
Issuance Plan, the Vina Technologies, Inc. Stock Incentive Plan or the Vina
Technologies, Inc. 1998 Stock Plan, and to file the Registration Statements,
with all exhibits thereto, and any other documents in connection therewith, with
the Securities and Exchange Commission pursuant to the Securities Act of 1933,
as amended, and the rules and regulations promulgated thereunder, and do hereby
grant unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done, as fully to all intents and purposes as the undersigned might or
could do in person, and ratify and confirm all that said attorneys-in-fact and
agents, or their substitutes, may lawfully do or cause to be done by virtue of
this Power of Attorney.
IN WITNESS WHEREOF, I have executed this Power of Attorney as of August
9, 2000.
/s/ W. Michael West
------------------------------------
Name: W. Michael West
Title: Chairman of the Board
<PAGE> 2
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS:
I, the undersigned, do hereby make, constitute and appoint Steven M.
Bauman and Stanley E. Kazmierczak, and each of them, my true and lawful
attorneys-in-fact and agents, each with full power of substitution, in any or
all of my offices and capacities with VINA Technologies, Inc. as shown below, to
execute for me and on my behalf one or more registration statements on Form S-8
(the "Registration Statements") and any and all amendments and supplements
thereto, including post-effective amendments, relating to the VINA Technologies,
Inc. Employee Stock Purchase Plan, and to the resale by Nancy Smith of common
stock of VINA Technologies, Inc. acquired upon the exercise of options issued
under one or more of the Vina Technologies, Inc. 1996 Stock Option/Stock
Issuance Plan, the Vina Technologies, Inc. Stock Incentive Plan or the Vina
Technologies, Inc. 1998 Stock Plan, and to file the Registration Statements,
with all exhibits thereto, and any other documents in connection therewith, with
the Securities and Exchange Commission pursuant to the Securities Act of 1933,
as amended, and the rules and regulations promulgated thereunder, and do hereby
grant unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done, as fully to all intents and purposes as the undersigned might or
could do in person, and ratify and confirm all that said attorneys-in-fact and
agents, or their substitutes, may lawfully do or cause to be done by virtue of
this Power of Attorney.
IN WITNESS WHEREOF, I have executed this Power of Attorney as of August
9, 2000.
/s/ Joahua W. Soske
------------------------------------
Name: Joshua Soske
Title: Director
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POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS:
I, the undersigned, do hereby make, constitute and appoint Steven M.
Bauman and Stanley E. Kazmierczak, and each of them, my true and lawful
attorneys-in-fact and agents, each with full power of substitution, in any or
all of my offices and capacities with VINA Technologies, Inc. as shown below, to
execute for me and on my behalf one or more registration statements on Form S-8
(the "Registration Statements") and any and all amendments and supplements
thereto, including post-effective amendments, relating to the VINA Technologies,
Inc. Employee Stock Purchase Plan, and to the resale by Nancy Smith of common
stock of VINA Technologies, Inc. acquired upon the exercise of options issued
under one or more of the Vina Technologies, Inc. 1996 Stock Option/Stock
Issuance Plan, the Vina Technologies, Inc. Stock Incentive Plan or the Vina
Technologies, Inc. 1998 Stock Plan, and to file the Registration Statements,
with all exhibits thereto, and any other documents in connection therewith, with
the Securities and Exchange Commission pursuant to the Securities Act of 1933,
as amended, and the rules and regulations promulgated thereunder, and do hereby
grant unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done, as fully to all intents and purposes as the undersigned might or
could do in person, and ratify and confirm all that said attorneys-in-fact and
agents, or their substitutes, may lawfully do or cause to be done by virtue of
this Power of Attorney.
IN WITNESS WHEREOF, I have executed this Power of Attorney as of August
9, 2000.
/s/ Philip J. Quigley
------------------------------------
Name: Philip J. Quigley
Title: Director
<PAGE> 4
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS:
I, the undersigned, do hereby make, constitute and appoint Steven M.
Bauman and Stanley E. Kazmierczak, and each of them, my true and lawful
attorneys-in-fact and agents, each with full power of substitution, in any or
all of my offices and capacities with VINA Technologies, Inc. as shown below, to
execute for me and on my behalf one or more registration statements on Form S-8
(the "Registration Statements") and any and all amendments and supplements
thereto, including post-effective amendments, relating to the VINA Technologies,
Inc. Employee Stock Purchase Plan, and to the resale by Nancy Smith of common
stock of VINA Technologies, Inc. acquired upon the exercise of options issued
under one or more of the Vina Technologies, Inc. 1996 Stock Option/Stock
Issuance Plan, the Vina Technologies, Inc. Stock Incentive Plan or the Vina
Technologies, Inc. 1998 Stock Plan, and to file the Registration Statements,
with all exhibits thereto, and any other documents in connection therewith, with
the Securities and Exchange Commission pursuant to the Securities Act of 1933,
as amended, and the rules and regulations promulgated thereunder, and do hereby
grant unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done, as fully to all intents and purposes as the undersigned might or
could do in person, and ratify and confirm all that said attorneys-in-fact and
agents, or their substitutes, may lawfully do or cause to be done by virtue of
this Power of Attorney.
IN WITNESS WHEREOF, I have executed this Power of Attorney as of August
9, 2000.
/s/ Frank J. Marshall
------------------------------------
Name: Frank J. Marshall
Title: Director
<PAGE> 5
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS:
I, the undersigned, do hereby make, constitute and appoint Steven M.
Bauman and Stanley E. Kazmierczak, and each of them, my true and lawful
attorneys-in-fact and agents, each with full power of substitution, in any or
all of my offices and capacities with VINA Technologies, Inc. as shown below, to
execute for me and on my behalf one or more registration statements on Form S-8
(the "Registration Statements") and any and all amendments and supplements
thereto, including post-effective amendments, relating to the VINA Technologies,
Inc. Employee Stock Purchase Plan, and to the resale by Nancy Smith of common
stock of VINA Technologies, Inc. acquired upon the exercise of options issued
under one or more of the Vina Technologies, Inc. 1996 Stock Option/Stock
Issuance Plan, the Vina Technologies, Inc. Stock Incentive Plan or the Vina
Technologies, Inc. 1998 Stock Plan, and to file the Registration Statements,
with all exhibits thereto, and any other documents in connection therewith, with
the Securities and Exchange Commission pursuant to the Securities Act of 1933,
as amended, and the rules and regulations promulgated thereunder, and do hereby
grant unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done, as fully to all intents and purposes as the undersigned might or
could do in person, and ratify and confirm all that said attorneys-in-fact and
agents, or their substitutes, may lawfully do or cause to be done by virtue of
this Power of Attorney.
IN WITNESS WHEREOF, I have executed this Power of Attorney as of August
9, 2000.
/s/ John F. Malone
------------------------------------
Name: John F. Malone
Title: Director
<PAGE> 6
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS:
I, the undersigned, do hereby make, constitute and appoint Steven M.
Bauman and Stanley E. Kazmierczak, and each of them, my true and lawful
attorneys-in-fact and agents, each with full power of substitution, in any or
all of my offices and capacities with VINA Technologies, Inc. as shown below, to
execute for me and on my behalf one or more registration statements on Form S-8
(the "Registration Statements") and any and all amendments and supplements
thereto, including post-effective amendments, relating to the VINA Technologies,
Inc. Employee Stock Purchase Plan, and to the resale by Nancy Smith of common
stock of VINA Technologies, Inc. acquired upon the exercise of options issued
under one or more of the Vina Technologies, Inc. 1996 Stock Option/Stock
Issuance Plan, the Vina Technologies, Inc. Stock Incentive Plan or the Vina
Technologies, Inc. 1998 Stock Plan, and to file the Registration Statements,
with all exhibits thereto, and any other documents in connection therewith, with
the Securities and Exchange Commission pursuant to the Securities Act of 1933,
as amended, and the rules and regulations promulgated thereunder, and do hereby
grant unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done, as fully to all intents and purposes as the undersigned might or
could do in person, and ratify and confirm all that said attorneys-in-fact and
agents, or their substitutes, may lawfully do or cause to be done by virtue of
this Power of Attorney.
IN WITNESS WHEREOF, I have executed this Power of Attorney as of August
9, 2000.
/s/ Jeffrey M. Drazan
------------------------------------
Name: Jeffrey M. Drazan
Title: Director
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POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS:
I, the undersigned, do hereby make, constitute and appoint Steven M.
Bauman and Stanley E. Kazmierczak, and each of them, my true and lawful
attorneys-in-fact and agents, each with full power of substitution, in any or
all of my offices and capacities with VINA Technologies, Inc. as shown below, to
execute for me and on my behalf one or more registration statements on Form S-8
(the "Registration Statements") and any and all amendments and supplements
thereto, including post-effective amendments, relating to the VINA Technologies,
Inc. Employee Stock Purchase Plan, and to the resale by Nancy Smith of common
stock of VINA Technologies, Inc. acquired upon the exercise of options issued
under one or more of the Vina Technologies, Inc. 1996 Stock Option/Stock
Issuance Plan, the Vina Technologies, Inc. Stock Incentive Plan or the Vina
Technologies, Inc. 1998 Stock Plan, and to file the Registration Statements,
with all exhibits thereto, and any other documents in connection therewith, with
the Securities and Exchange Commission pursuant to the Securities Act of 1933,
as amended, and the rules and regulations promulgated thereunder, and do hereby
grant unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done, as fully to all intents and purposes as the undersigned might or
could do in person, and ratify and confirm all that said attorneys-in-fact and
agents, or their substitutes, may lawfully do or cause to be done by virtue of
this Power of Attorney.
IN WITNESS WHEREOF, I have executed this Power of Attorney as of August
9, 2000.
/s/ Stanley E. Kazmierczak
------------------------------------
Name: Stanley E. Kazmierczak
Title: Vice President, Finance and
Administration and Chief Financial
Officer
