Peter R Denz

20030123456, Jul 3, 2003

Dec 28, 2001

10/028473

Peter Denz - Cary NC, US
Vishnu Natchu - San Jose CA, US
Steven Blake - Cary NC, US

H04L012/28
H04L012/56

370/400000, 370/392000

A method of filtering an incoming data packet stream in a data packet transmission system. The method comprises a step of defining a tree-like hierarchy for a plurality of filter conditions such that the filter conditions are divided into groups of filters, each of the groups associated with one or more fields having pre-determined condition values. The groups are arranged in long edges of the tree-like hierarchy. Next, a data packet stream is received at a point of ingress to the data packet transmission system and condition values along the edges of the tree-like hierarchy are compared to specified portions of the data packet stream to determine where there are matches. If matches are made along an entire edge of the tree-like hierarchy, the data packet stream is filtered according to the number of condition values compared as opposed to the number of filters.

20060239196, Oct 26, 2006

Apr 25, 2005

11/114596

Sanjay Khanna - Cary NC, US
Peter Denz - Cary NC, US
Daniel Schudel - Durham NC, US

H04J 1/16
H04L 12/56

370235000, 370392000

Various systems and method are disclosed for selecting a destination server from a plurality of servers, the method comprising: receiving an incoming packet; identifying a stream of bits from within the incoming packet; calculating a signature from the identified stream of bits; mapping the incoming packet to the destination server using the signature; updating the statistics for the destination server, and forwarding the incoming packet to the destination server.