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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000891618-99-003229.txt : 19990722
<SEC-HEADER>0000891618-99-003229.hdr.sgml : 19990722
ACCESSION NUMBER:		0000891618-99-003229
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		19990721

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CISCO SYSTEMS INC
		CENTRAL INDEX KEY:			0000858877
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		IRS NUMBER:				770059951
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			0731

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		
		SEC FILE NUMBER:	333-51487
		FILM NUMBER:		99667652

	BUSINESS ADDRESS:	
		STREET 1:		170 WEST TASMAN DRIVE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134-1706
		BUSINESS PHONE:		4085264000

	MAIL ADDRESS:	
		STREET 1:		225 WEST TASMAN DRIVE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134-1706
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<DESCRIPTION>PROSPECTUS SUPPLEMENT
<TEXT>

<PAGE>   1
                   PROSPECTUS SUPPLEMENT DATED July 20, 1999
                       (TO PROSPECTUS DATED MAY 6, 1998)


                                                         Filed Pursuant to
                                                       Rule 424(b)(3) and (c)
                                                   Commission File No. 333-51487



                                  2,793 SHARES

                              [CISCO SYSTEMS LOGO]

                                  COMMON STOCK


     This Prospectus Supplement supplements the Prospectus dated May 6, 1998
(the "Prospectus") of Cisco Systems, Inc. ("Cisco" or the "Company") relating to
the public offering, which is not being underwritten, and sale by certain
shareholders of the Company or by pledgees, donees, transferees or other
successors in interest that receive such shares as a gift, partnership
distribution or other non-sale related transfer (the "Selling Shareholders") of
up to 2,793 shares of Cisco's Common Stock, par value $0.001 per share (the
"Common Stock"), who received such shares in connection with the acquisition by
statutory merger of NetSpeed, Inc. ("NetSpeed"), by and through a merger of
NetSpeed with and into the Company. This Prospectus Supplement should be read in
conjunction with the Prospectus, and this Prospectus Supplement is qualified by
reference to the Prospectus except to the extent that information herein
contained supersedes the information contained in the Prospectus. Capitalized
terms used in this Prospectus Supplement and not otherwise defined herein have
the meanings specified in the Prospectus.

                               SELLING SHAREHOLDER

     Recently Richard E. Anderson transferred 652 shares of Common Stock to
Southern Methodist University, which transferee was not specifically named in
the Prospectus. Also, James Mansour transferred 2,141 shares of Common Stock to
JMM PTLP, Ltd., which transferee was not specifically named in the Prospectus.
The following table provides certain information with respect to the number of
shares of Common Stock beneficially owned by a shareholder of the Company who
was not specifically identified in the Prospectus as a Selling Shareholder, the
percentage of outstanding shares of Common Stock of the Company this represents
and the number of shares of Common Stock to be registered for sale hereby. The
table of Selling Shareholders in the Prospectus is hereby amended to include
Southern Methodist University and JMM PTLP, Ltd. as Selling Shareholders.

<TABLE>
<CAPTION>
                                       Number of           Percent of          Number of
                                         Shares           Outstanding            Shares
                                      Beneficially           Shares          Registered for
Name of Selling Shareholder             Owned(1)                              Sale Hereby(1)
- --------------------------------------------------------------------------------------------
<S>                                     <C>                    <C>               <C>
Southern Methodist University             652                  *                   652
JMM PTLP, Ltd.                          2,141                  *                 2,141
</TABLE>

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

*    Represents beneficial ownership of less than 1%.

(1)  The registration statement to which the Prospectus and this Prospectus
     Supplement relate shall also cover any additional shares of Common Stock
     which become issuable in connection with the Shares registered for sale
     hereby by reason of any stock dividend, stock split, recapitalization or
     other similar transaction effected without the receipt of consideration
     which results in an increase in the number of the Company's outstanding
     shares of Common Stock.
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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