Alex C Snoeren

7577099, Aug 18, 2009

Apr 6, 2006

11/399643

Albert G. Greenberg - Summit NJ, US
Ramana Rao Kompella - La Jolla CA, US
Alex C. Snoeren - Fullerton CA, US
Jennifer Yates - Morristown NJ, US

AT&T Corp. - New York NY

G01R 31/08
G06F 11/00
G08C 15/00
H04J 1/16
H04J 3/14
H04L 1/00
H04L 12/16

370242, 370241

A method and apparatus for automatically localizing failures in a network. Failures can be localized by receiving an observation, querying a database for a plurality of models of risks and calculating a hypothesis from the plurality of models of risks that explains the observation. The observation comprises link failures reported by a plurality of data sources. The plurality of models or risks represents links that would likely be impacted by the failure of each component within the network stored in a Shared Risk Link Group (SRLG) database. A Spatial Correlation Engine (SCORE) applies an algorithm to calculate a hypothesis from the plurality of models of risks that explains the observation, thereby, automatically localizing failures in a network.

7904589, Mar 8, 2011

May 19, 2007

11/804447

Jacobus Van Der Merwe - New Providence NJ, US
Dan Pei - Chatham NJ, US
Thomas B. Scholl - Parlin NJ, US
Aman Shaikh - Summit NJ, US
Alex Snoeren - Fullerton CA, US
Patrick Verkaik - San Diego CA, US

AT&T Intellectual Property I, LP - Atlanta GA

G06F 15/16

709238, 370351

A route control architecture allows a network operator to flexibly control routing between the traffic ingresses and egresses in a computer network, without modifying existing routers. An intelligent route service control point (IRSCP) replaces distributed BGP decision processes of conventional network routers with a route computation that is flexible and logically centralized but physically distributed. One embodiment supplements the traditional BGP decision process with a ranking decision process that allows route-control applications to explicitly rank traffic egresses on a per-destination, per-router basis. A straightforward set of correctness requirements prevents routing anomalies in implementations that are scalable and fault-tolerant.

8166195, Apr 24, 2012

Jan 31, 2011

13/017088

Jacobus Van Der Merwe - New Providence NJ, US
Dan Pei - Chatham NJ, US
Thomas B. Scholl - Parlin NJ, US
Aman Shaikh - Summit NJ, US
Alex Snoeren - Fullerton CA, US
Patrick Verkaik - San Diego CA, US

AT&T Intellectual Property I, L.P. - Atlanta GA

G06F 15/16

709235, 709238, 370351

A route control architecture allows a network operator to flexibly control routing between the traffic ingresses and egresses in a computer network, without modifying existing routers. An intelligent route service control point (IRSCP) replaces distributed BGP decision processes of conventional network routers with a route computation that is flexible and logically centralized but physically distributed. One embodiment supplements the traditional BGP decision process with a ranking decision process that allows route-control applications to explicitly rank traffic egresses on a per-destination, per-router basis. A straightforward set of correctness requirements prevents routing anomalies in implementations that are scalable and fault-tolerant.

20210141158, May 13, 2021

Sep 19, 2017

16/334694

- Oakland CA, US
Joseph Ford - Solana Beach CA, US
Alex Snoeren - San Diego CA, US
George Papen - San Diego CA, US
William Mellette - San Diego CA, US

G02B 6/35
G02B 26/08
G02B 6/26
H03K 17/56

An apparatus for network switching may include a plurality of input ports, a plurality of output ports, and a subset of pre-configured interconnection patterns including some but not all of the possible interconnection patterns between the input ports and the output ports. The apparatus may be communicatively coupled to a network via the input ports and/or the output ports. The apparatus may be configured to switch to a first interconnection pattern and a second interconnection pattern from the subset of pre-configured interconnection patterns. The first interconnection pattern and the second interconnection pattern may each provide a set of connections between the input ports and the output ports. At least one signal between the input ports and the output ports may be transmitted via the first interconnection pattern and/or the second interconnection pattern. Related methods are also provided.

20210044531, Feb 11, 2021

Jan 31, 2019

16/965979

- Oakland CA, US
Alex Snoeren - San Diego CA, US
George Porter - San Diego CA, US
George Papen - San Diego CA, US

H04L 12/851
H04L 12/751
H04Q 3/00

A method may include determining whether the topology of a network includes a direct path between a first endpoint and a second endpoint in the network. A direct path may be used to send a first type of traffic from the first endpoint to the second endpoint whereas any currently available path may be used to send a second type of traffic from the first endpoint to the second endpoint. If the topology of the network does not include a direct path, the first type of traffic may be buffered at the first endpoint until the topology of the network is reconfigured to include the direct path. The topology of the network may be reconfigured when at least one switch in the network reconfigures, for example, by switching from one interconnection to another interconnection pattern. Related systems and articles of manufacture are also provided.