Prom Ks Mgmt Limited Liability Company

Other

Prominence Networks, Inc.

Prom Ks Limited Liability Company

Siddhartha Nag

Naveed Alam

Alfred D'Souza

Rakesh H Patel

Bo Shu

Rahul Gulati

Ilana Polyak

Srikanth S Kumar

Apparatus and methods are provided for delivering end-to-end Quality of Service (QoS) over Internet Protocol (IP) networks. According to one embodiment, a portion of available bandwidth between a first and second network device is reserved as a Quality of Service (QoS) resource pool for real-time communication sessions among users of a first and second user community. The first network device is communicatively coupled with a packet network and associated with the first user community. The second network device is communicatively coupled with the packet network and associated with the second user community. End-to-end application QoS is provided between the first and second user communities by selectively admitting real-time communication sessions between the first user community and the second user community based upon currently available resources associated with the QoS resource pool and multiplexing the real-time communication sessions over a reservation protocol session between the first and second network devices.

End-to-end service quality for latency-intensive internet protocol (IP) applications in a heterogeneous, multi-vendor environment

A graphical user interface (GUI) is disclosed that allows a user to identify routers, communities, residents and media aggregation managers existing on a network. The user may interactively select a path that includes two media aggregation managers and at least one router. The GUI predicts scheduled bandwidth utilization along the selected path for a variety of residents wishing to communicate across the path. The GUI may be utilized for initializing all media aggregation managers on the network along with provisioning each of the routers on the selected path. The GUI provisions all of the routers and initializes all of the media aggregation managers on the selected path simultaneously in order to accomplish the predicted schedule of usage provided by the GUI to the user and force all communication packets communicated between the residents to travel along the selected path.

Graphical user interface (GUI) for administering a network implementing media aggregation

Apparatus and methods are provided for multiplexing application flows. According to one embodiment, a predetermined portion of available bandwidth is reserved over a path through a network communicatively coupling a first network device associated with a first set of terminals and a second network device associated with a second set of terminals for real-time communication sessions among multiple applications running on the first set of terminals and the second set of terminals as a real-time bandwidth pool. The real-time bandwidth pool is thereafter shared among multiple real-time communication sessions involving one or more terminals in the first set of terminals and one or more terminals in the second set of terminals by selectively admitting application sessions involving the one or more terminals in the first set of terminals and the one or more terminals in the second set of terminals based upon currently available resources in the real-time bandwidth pool.

Multiplexing several individual application sessions over a pre-allocated reservation protocol session

Disclosed herein is a method of executing the RAS stage up to the set-up stage in a H.323 system. The H. 323 system comprises one or more third party gatekeepers and one or more end points. A transparent back-to-back proxy gatekeeper is introduced between a third party gatekeeper and end-points. Two sets of ports are created on the transparent back-to-back proxy gatekeeper. One set of ports represent themselves as end-points to the third party gatekeeper and the other set of ports represent themselves as known ports of the third party gatekeeper to the end point. A H.323 RAS request is intercepted transparently from an end-point to a third party gatekeeper. The H.323 RAS request is addressed to a well-known port number on the third party gatekeeper. The information of the H.323 RAS registration request is stored in a local persistent copy within the back-to-back proxy gatekeeper. The H.323 RAS registration request is passed to the well-known port number on the third party gatekeeper.

Back-to back H.323 proxy gatekeeper

Graphical user interface (GUI) for administering a voice over internet protocol (VOIP) network implementing media aggregation

Methods and apparatus are provided for administering a communication network. In one embodiment, a first interface screen depicts nodes within a network. The nodes include a pair of media aggregation managers providing multiplexing/demultiplexing of media traffic associated with multiple application sessions between a pair of communities onto a preallocated reservation protocol session between the media aggregation managers. The media aggregation managers are visually distinguishable from other nodes. A second interface screen depicts potential paths through the network. Each potential path is capable of transferring media packets between the media aggregation managers. Via the second user interface screen, a network administrator is capable of initiating (1) path-level configuration of routers that are part of a selected potential path to cause the routers to route media packets exchanged between the pair of communities over the selected path, and (2) establishment of the preallocated reservation protocol session between the media aggregation managers.

Administering a communication network

End-to-end service quality in a voice over Internet Protocol (VoIP) Network

Methods and apparatus are provided for performing traffic admission control in a Differentiated Services (DiffServ) network environment. According to one embodiment, a predetermined portion of available bandwidth between a first network device and a second network device is reserved as a real-time bandwidth pool for real-time communication sessions among users of a first group of terminals associated with the first network device and a second group of terminals associated with the second network device, the real-time bandwidth pool corresponding to estimated bandwidth remaining available on a path through a Differentiated Services (DiffServ) network interposed between the first group of terminals and the second group of terminals. Thereafter, the real-time bandwidth pool is shared among multiple real-time communication sessions involving terminals of the first and second groups of terminals by selectively admitting application sessions based upon currently available resources in the real-time bandwidth pool.

Network traffic admission control

Apparatus and methods are provided for multiplexing and selectively encrypting application flows, such as VoIP services, over a pre-allocated bandwidth reservation protocol session. According to one embodiment, a pre-allocated reservation protocol session, such as an RSVP session, is shared by one or more individual application sessions. The reservation protocol session is pre-allocated over a path between a first network device associated with a first user community and a second network device associated with a second user community based upon an estimated usage of the path for individual application sessions between users of the first and second user communities. Subsequently, the one or more individual application sessions are dynamically aggregated by multiplexing application flows associated with the one or more individual application sessions onto the pre-allocated reservation protocol session at the first network device and demultiplexing at the second network device. Additionally, various levels of security may be selectively applied to the application sessions by performing encryption at the first network device and decryption at the second network device.

Selective encryption of application session packets

Apparatus and methods are provided for multiplexing application flows over a pre-allocated bandwidth reservation protocol session. According to one embodiment, a pre-allocated reservation protocol session, such as an RSVP session, is shared by one or more application sessions. The reservation protocol session is pre-allocated over a path between a first network device associated with a first user community and a second network device associated with a second user community based upon an estimated usage of the path for application sessions between users of the first and second user communities. Subsequently, the one or more application sessions are dynamically aggregated by multiplexing application flows associated with the one or more individual application sessions onto the pre-allocated reservation protocol session at the first network device and demultiplexing at the second network device. According to another embodiment, a network device enables multiple applications, such as VoIP applications, that require real-time performance to share an aggregated reservation protocol session, such as an RSVP session. The network device includes a storage device having stored therein one or more routines for establishing and managing the aggregated reservation protocol session. A processor coupled to the storage device executes the one or more routines to pre-allocate the aggregated reservation protocol session and thereafter share the aggregated reservation protocol session among multiple application sessions of individual application sessions. The aggregated reservation protocol session is pre-allocated based upon an estimate of the bandwidth requirements to accommodate the multiple application sessions. The aggregated reservation protocol session is shared by multiplexing, onto the aggregated reservation protocol session, outbound media packets (e.g., packetized voice data) originated by local application/endpoints associated with the application sessions, and demultiplexing, from the aggregated reservation protocol session, inbound media packets (e.g., packetized voice data) originated by remote application/endpoints.

Growing community of inventors

Holmdel, NJ, United States of America

Siddhartha Nag