US 6,687,732 B1 · Adaptive traffic bypassing in an intercepting network driver

Abstract

An Internet Protocol driver executed by a network interface card, or a network address translation module, includes a mechanism that enables a server to bypass packets associated with certain destinations, sources, or a combination of the two based upon their IP address. When a packet arrives at the network interface card, the driver extracts a source IP address and a destination IP address from the packet. The driver searches a table to locate a rule matching one of the addresses. If a match is found, the packet is bypassed. If no match is found, the packet is sent on to an indexing and caching server for further processing. The bypass rules may be adaptively and dynamically generated when a message causes a remote server to respond with an error code. The dynamically generated bypass rules prevent the first server from sending subsequent requests to the remote server, thereby insulating the indexing and caching server from unnecessary network traffic.

Claims90

Dependent claims

In a system that routes requests for information destined for an origin server via an interception device, and redirects the intercepted requests for information to a proxy processing engine that participates in processing the requests for information, a method of routing the requests for information comprising the steps of:

receiving feature information identifying one or more features of a current transaction or environment;
selecting a bypass percentage value based on the values of system parameters and tolerances;
generating a pseudo-random value using a pseudo-random number generator;
selectively bypassing the proxy processing engine for a particular request for information so that the proxy processing engine does not participate in the processing of the particular request for information;
wherein the selective bypassing of the proxy processing engine is based upon the feature information and environmental information and whether the pseudo-random value is less than the bypass percentage;
and
redirecting the particular request for information to the origin server.

4 more elements

A computer-readable medium carrying one or more sequences of instructions which, when executed by one or more processors, cause the one or more processors to route requests for information destined for an origin server via an interception device by:

receiving feature information identifying one or more features of a current transaction or environment;
selecting a bypass percentage value based on the values of system parameters and tolerances;
generating a pseudo-random value using a pseudo-random number generator;
selectively bypassing a proxy processing engine for a particular request for information so that the proxy processing engine does not participate in the processing of the particular request for information;
wherein the selective bypassing of the proxy processing engine is based upon the feature information and environmental information and whether the pseudo-random value is less than the bypass percentage;
and
redirecting the particular request for information to the origin server.

4 more elements

An apparatus comprising a memory carrying one or more sequences of instructions which, when executed by one or more processors, cause the one or more processors to route requests for information destined for an origin server via an interception device by:

receiving feature information identifying one or more features of a current transaction or environment;
selecting a bypass percentage value based on the values of system parameters and tolerances;
generating a pseudo-random value using a pseudo-random number generator;
selectively bypassing a proxy processing engine for a particular request for information so that the proxy processing engine does not participate in the processing of the particular request for information;
wherein the selective bypassing of the proxy processing engine is based upon the feature information and environmental information and whether the pseudo-random value is less than the bypass percentage;
and
redirecting the particular request for information to the origin server.

4 more elements

Dependencies are inferred from the claim text.

Adaptive traffic bypassing in an intercepting network driver

Life of this patent

Adaptive traffic bypassing in an intercepting network driver

Life of this patent

Abstract

Claims90