1
Hussein Farouk Salama, David R Oran, Dhaval N Shah: Method and apparatus for automatic inter-domain routing of calls. Cisco Technology, Marger Johnson & McCollom P C, June 24, 2003: US06584093 (232 worldwide citation)

A method and apparatus for inter-domain routing of calls in a network, where the network represents a first wide area network. A routing node of the network advertises its access to a range of addresses in a second wide area network and a cost for access to the range of addresses to all adjacent nod ...


2
Dhaval N Shah, Virupaksh Honnur, Dalen D Bosteder: System and method for measuring round trip times in a network using a TCP packet. Cisco Technology, Van Pelt & Yi, September 3, 2002: US06446121 (157 worldwide citation)

An embodiment of the present invention is a system and method for measuring round trip times in a network, such as the Internet, by utilizing a packet, such as a transmission control protocol (TCP) packet. The TCP packet may be a packet which is typically utilized during establishment of a reliable ...


3
Richard A Johnson, Dhaval N Shah, Dalen D Bosteder: Apparatus and method for performing traffic redirection in a distributed system using a portion metric. Cisco Technology, Beyer Weaver & Thomas, March 20, 2001: US06205477 (114 worldwide citation)

A method and system for distributing a service request among a plurality of servers is disclosed. A portion metric is assigned to each one of the plurality of servers, the portion metric designating a portion of total server requests to be allocated to the one of the plurality of servers. A server r ...


4
Dhaval N Shah: System and method for selecting a service with dynamically changing information. Cisco Technology, Baker Botts L, September 21, 2004: US06795860 (83 worldwide citation)

The present invention relates to a system and method for selecting a service. According an embodiment of the present invention, a priority array indicates an order of priority levels; a residual array indicates each service to be evaluated for selection; and a result array indicates the results of s ...


5
Dhaval N Shah: System and method for determining a preferred mirrored service in a network by evaluating a border gateway protocol. Van Pelt & Yi, July 10, 2001: US06260070 (76 worldwide citation)

An embodiment of the present invention is a system and method for selecting a mirrored service in a network, such as the Internet, by utilizing a Border Gateway Protocol (BGP) attribute. According to an embodiment of the present invention, the BGP attribute, which may be stored in a border router, i ...


6
Ilya Umansky, Neil Joffe, Shamim Sharifuddin Pirzada, Dhaval N Shah: Voice over internet protocol call fallback for quality of service degradation. Cisco Technology, Marger Johnson & McCollom PC, March 15, 2005: US06868080 (74 worldwide citation)

The invention provides a way to fallback to a PSTN call at any time during a VoIP call when Quality of Service in a VoIP network falls below some acceptable level. The PSTN fallback calls can be retrieved “midcall” and rerouted back over the VoIP network. This provides optimal utilization of VoIP wi ...


7
Dhaval N Shah, Richard Johnson: System and method for determining a preferred service in a network. Cisco Technology, Vanpelt & Yi, September 18, 2001: US06292832 (70 worldwide citation)

The present invention relates to a system and method for selecting a service in a network, such as the Internet. According to an embodiment of the present invention, a user, such as a network administrator, may configure the system and method of the present invention to determine a “best” service ba ...


8
Dhaval N Shah, Richard Johnson: System and method for information retrieval regarding services. Cisco Technology, Van Pelt & Yi, October 2, 2001: US06298381 (47 worldwide citation)

The present invention relates to a system and method for information retrieval related to a service. According to an embodiment of the present invention, two separate types of packets may be received to indicate information which is required. One type of packet is intended for information which may ...


9
Richard A Johnson, Dhaval N Shah, Dalen D Bosteder: Apparatus and method for performing traffic redirection in a distributed system using a portion metric. Cisco Technology, Beyer Weaver & Thomas, April 19, 2005: US06883028 (33 worldwide citation)

A method and system for distributing a service request among a plurality of servers is disclosed. A portion metric is assigned to each one of the plurality of servers, the portion metric designating a portion of total server requests to be allocated to the one of the plurality of servers. A server r ...


10
Farshid Moussavi, Dhaval N Shah: Multicast routing with multicast virtual output queues and shortest queue first allocation. Cisco Technology, Cesari and McKenna, August 5, 2003: US06603772 (26 worldwide citation)

The invention includes a method and apparatus for routing multicast traffic with better performance and reduced Head of Line blocking. This is achieved by means of the use of multiple virtual output queues for each input interface that handles multicast traffic, called “multicast virtual output queu ...