Rodolphe R Figaro

7461154, Dec 2, 2008

Nov 18, 2004

10/992499

Rodolphe Figaro - Windham NH, US
David D. Ward - Somerset WI, US
Anca Zamfir - Kanata, CA
John Galen Scudder - Ann Arbor MI, US

Cisco Technology, Inc. - San Jose CA

G06F 15/16

709227, 709238, 370235

A virtual router (VR) communication arrangement enables services on different VRs executing on the same physical router to communicate without utilizing or substantially consuming communication resources, such as a network protocol stack and physical interfaces, of the physical router. The services are illustratively implemented as separately-scheduled VR processes executing on the physical router. A virtual router forwarding information base (vrFIB) is provided within a client socket library of each VR process and is used to determine whether the services are on the same physical router. If so, a lightweight interconnection is created between the services and a message (“packet”) is forwarded over that interconnection to effectuate communication. If the services are not on the same physical router, the packet is sent over the network protocol stack and communication is established using the communication resources of the router.

20060092952, May 4, 2006

Oct 13, 2004

10/964184

Sami Boutros - Kanata, CA
Muthurajah Sivabalan - Kanata, CA
David Ward - Somerset WI, US
Stefano Previdi - Roma, IT
Jean-Philippe Vasseur - Dunstable MA, US
Rodolphe Figaro - Windham NH, US
Reshad Rahman - Ottawa, CA

H04L 12/56

370400000

A system and method for advertising out-of-resources (OOR) conditions for entities, such as nodes, line cards and data links, in a manner that does not involve using a maximum cost to indicate the entity is “out-of-resources.” According to the technique, an OOR condition for an entity is advertised in one or more type-length-value (TLV) objects contained in an advertisement message. The advertisement message is flooded to nodes on a data network to inform them of the entity's OOR condition. Head-end nodes that process the advertisement message may use information contained in the TLV object to determine a path for a new label switched path (LSP) that does not include the entity associated with the OOR condition.

6628649, Sep 30, 2003

Oct 29, 1999

09/430653

Alex E. Raj - Westford MA
Rodolphe Figaro - Derry NH
Peter Kline - Toms River NJ
Jeremy Lawrence - Chippendale, AU

Cisco Technology, Inc. - San Jose CA

H04L 1256

370360, 3703951

The invention provides unique architectures and techniques for routing redundancy in a data switch configured to use label switching. Multiple label switch controllers (LSCs) each operate concurrently but independently of each other to provide routes through a data switching mechanism. Preferred embodiments provide a plurality of LSCs offering MPLS capabilities coupled to a single switch, such as an ATM switch. The similarly configured LSCs each can concurrently support a route for data (e. g. , labeled ATM cells) within the data switching mechanism in parallel, thereby providing the ability to support redundant and multiple parallel data networks. The configuration is called a label switch router (LSR). A fully-meshed embodiment allows selected routes to share bandwidth on ports, while a fully parallel embodiment provides separate ports for selected routes. Since each LSC provides parallel routes with the other LSCs in an LSR, a communications between an LSR and a label edge router (LER) can use multipath routing to concurrently distribute data equally across the parallel routes for each destination.

20140211629, Jul 31, 2014

Mar 28, 2014

14/229503

- San Jose CA, US
Muthurajah Sivabalan - Kanata, CA
David D. Ward - Somerset WI, US
Stefano B. Previdi - Rome, IT
Jean-Philippe Vasseur - Dunstable MA, US
Rodolphe Figaro - Windham NH, US
Reshad A. Rahman - Ottawa, CA

Cisco Technology, Inc. - San Jose CA

H04L 12/803

370235

A system and method for advertising out-of-resources (OOR) conditions for entities, such as nodes, line cards and data links, in a manner that does not involve using a maximum cost to indicate the entity is “out-of-resources.” According to the technique, an OOR condition for an entity is advertised in one or more type-length-value (TLV) objects contained in an advertisement message. The advertisement message is flooded to nodes on a data network to inform them of the entity's OOR condition. Head-end nodes that process the advertisement message may use information contained in the TLV object to determine a path for a new label switched path (LSP) that does not include the entity associated with the OOR condition.