Rusty Cumpston

Who is Rusty Cumpston?

William R. Cumpston has served as our Vice President, Systems

Engineering since June 2006. From September 2005 to June 2006, Mr.

Cumpston served as the Senior Vice President of Engineering at

XenSource Inc., an enterprise grade platform virtualization solution

company. From March 2003 to May 2005, Mr. Cumpston served as Chief

Executive Officer of CloudShield Technologies, Inc., a provider of IP

services control and security. From June 2002 to August 2002, Mr.

Cumpston served as a Senior Vice President of Metro Products at Ciena.

From August 1998 to June 2002, Mr. Cumpston served as Vice President,

Engineering and Chief Operating Officer at ONI Systems Corporation, a

fiber-optic communications equipment company. Mr. Cumpston holds a B.S.

in Mathematics from the University of North Carolina.