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Exhibit 23.1
CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
We consent to the incorporation by reference in the Registration Statement on
Form S-8 pertaining to the Mainsail Networks, Inc. 1997 Stock Option Plan of
Terayon Communication Systems, Inc., of our report dated January 17, 2000, with
respect to the consolidated financial statements and schedule of Terayon
Communication Systems, Inc. included in its Annual Report (Form 10-K/A), as
amended on April 28, 2000, for the year ended December 31, 1999, filed with the
Securities and Exchange Commission.
/s/ Ernst & Young LLP
San Jose, California
October 24, 2000
