<PAGE> 1
PROSPECTUS SUPPLEMENT DATED MAY 21, 1998
(TO PROSPECTUS DATED MAY 6, 1998)
Filed Pursuant to
Rule 424(b)(3) and (c)
Commission File No. 333-51487
4,144 SHARES
[CISCO SYSTEMS GRAPHIC]
CISCO SYSTEMS, INC.
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 4,144 shares of Common Stock, par value $0.001 per share, of the Company
(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 SHAREHOLDERS
On May 15 1998, Steven T. Newby ("Newby") donated 3,659 shares of Common
Stock to Project Excellence, Inc. ("Project Excellence"), which donee 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 Project Excellence as a Selling
Shareholder and to amend the information provided in the Prospectus with respect
to Mr. Newby to reflect the gift of 3,659 shares of Common Stock to Project
Excellence.
<TABLE>
<CAPTION>
Number of Number of
Shares Percent of Shares
Beneficially Outstanding Registered for
Name of Selling Shareholder Owned(1) Shares Sale Hereby(1)
- --------------------------- ------------ ----------- --------------
<S> <C> <C> <C>
Steven T. Newby 485 * 485
Project Excellence, Inc. 3,659 * 3,659
</TABLE>
- ---------------------------
* Represents beneficial ownership of less than 1%.
(1) This registration Statement 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.
