EXHIBIT 99.1
Contact:
                       Eugene F. Hovanec
                       Vice President, Finance & Chief Financial Officer
                       Vitesse Semiconductor Corporation
                       (805) 388-3700

                       Vitesse Semiconductor Corporation Completes
                       Acquisition of SiTera, Incorporated

                       Camarillo, CA - (June 2, 2000) - Vitesse Semiconductor
Corporation (NASDAQ:VTSS) announced today that it completed the acquisition of
all of the equity interests of SiTera, Incorporated on May 31, 2000 for $750
million in common stock. The transaction will be accounted for as a pooling of
interests.

                       Vitesse Semiconductor Corporation is a leading designer
and supplier of innovative, high performance semiconductors utilizing
state-of-the-art processes for the communications equipment manufacturers of
next generation DWDM and optical networking, as well as storage area networking
ICs and enclosure management products that monitor and communicate critical
reliability and availability information. The Company's products address the
needs of Core, Access, Optical and Enterprise network equipment manufacturers
who demand a combination of high speed, high complexity and low power
dissipation. Vitesse is headquartered in Camarillo, California and manufactures
volume ICs at its two fabrication facilities in Camarillo and Colorado Springs.