EXHIBIT ASierra Ventures v Lp • September 8th, 2000 • Telephone & telegraph apparatus
The undersigned hereby agree that they are filing jointly pursuant to Rule 13d-1(f)(1) of the Securities Exchange Act of 1934, as amended, the Amendment dated August 10, 2000, containing the information required by Schedule 13D, for the shares of Common Stock of VINA Technologies, Inc. held by Sierra Ventures V, L.P., a California limited partnership, and Sierra Ventures VI, L.P., a California limited partnership.
