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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
(Form S-8 Nos. 333-34552 and 333-91737) pertaining to the 1996 Stock Option
Plan, 1999 Director Option Plan, Employee Stock Purchase Plan, 1999 Stock
Incentive Plan, 2000 Supplemental Stock Option Plan, Shares Acquired Under
Written Compensation Agreements, and Options Granted Under Written Compensation
Agreements of CacheFlow Inc. of our report dated May 16, 2000 (Except Note 12
which is as of July 10, 2000), with respect to the consolidated financial
statements and schedule of CacheFlow Inc. included in the Annual Report (Form
10-K) for the year ended April 30, 2000.
/s/ Ernst & Young LLP
Walnut Creek, California
May 16, 2000 except Note 12,
which is as of July 10, 2000
