SAN JOSE, Calif., May 17, 2005 - Cisco Systems® today announced it has completed the acquisition of privately-held Topspin Communications, Inc. of Mountain View, Calif.

On April 14, 2005, Cisco announced a definitive agreement to acquire Topspin, a leading provider of server fabric switches, a new class of server networking equipment, that provides a high performance, programmable infrastructure for grid and utility computing, clustered enterprise applications, and server virtualization. The Topspin product line will extend Cisco's data center switching solutions to include InfiniBand-based server switching and will complement Cisco's existing network switching and storage switching solutions including its Ethernet-based Catalyst switching platform for internet/intranet infrastructure and its multiprotocol (Fibre Channel, FCIP, iSCSI and FICON) MDS switches for storage area networks.