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EXHIBIT 23.1
CONSENT OF KPMG LLP
The Board of Directors
Turnstone Systems, Inc.
The audits referred to in our report dated January 6, 2000, included the
related financial statement schedule as of December 31, 1998 and 1999, and for
the period from January 2, 1998 (inception) to December 31, 1998 and for the
year ended December 31, 1999, included in the registration statement. This
financial statement schedule is the responsibility of the Company's management.
Our responsibility is to express an opinion on this financial statement schedule
based on our audits. In our opinion, such financial statement schedule, when
considered in relation to the basic financial statements taken as a whole,
presents fairly in all material respects the information set forth therein.
We consent to the use of our reports dated January 6, 2000 on the balance
sheets of Turnstone Systems, Inc., as of December 31, 1998 and 1999, and the
related statements of operations, stockholders' equity, and cash flows for the
period from January 2, 1998 (inception) to December 31, 1998 and the year ended
December 31, 1999, included herein and to the reference to our firm under the
heading "Experts" in the prospectus.
/s/ KPMG LLP
Mountain View, California
January 31, 2000
