Gautam J Khera from 7602 Redmond Ct, Sugar Land, TX 77479, age 53, Phone: 5086606768

Us Patents

System, Device, And Method For Supporting Cut-Through Paths In An Optical Communication System
view source
US Patent:

7127180, Oct 24, 2006
Filed:

Sep 14, 2001
Appl. No.:

09/952828
Inventors:

Gautam Khera - Chelmsford MA, US
Leigh C. McLellan - Framingham MA, US
Assignee:

Nortel Networks Limited
International Classification:

H04B 10/00
H04J 14/00
H04L 12/28
US Classification:

398156, 398162, 398140, 398 57, 370254
Abstract:

A system, device, and method for supporting cut-through paths in an optical communication system involves obtaining hop count and quality of service information by an initiating device and using the hop count and quality of service information by the initiating device to make decisions relating to a cut-through path. The hop count and quality of service information is provided in a reply message that is sent by a terminating device and modified by intermediate devices between the initiating device and the terminating device. The terminating device sends the reply with a hop count equal to one and quality of service information for a first link (hop) toward the initiating device. Each intermediate device increments the hop count in the reply and adds quality of service information for a next link (hop) into the reply.

System, Device And Method For Supporting Cut-Through Paths In An Optical Communication System
view source
US Patent:

7773878, Aug 10, 2010
Filed:

Sep 19, 2006
Appl. No.:

11/532974
Inventors:

Gautam Khera - Chelmsford MA, US
Leigh C. McLellan - Framingham MA, US
Assignee:

Ciena Corporation - Linthicum MD
International Classification:

H04J 14/00
H04B 17/00
H04L 12/28
US Classification:

398 57, 398 25, 370351, 37039521
Abstract:

A system, device, and method for supporting cut-through pats in an optical communication system involves obtaining hop count and quality of service information by an initiating device and using the hop count and quality of service information by the initiating device to make decisions relating to a cut-through path. The hop count and quality of service information is provided in a reply message that is sent by a terminating device and modified by intermediate devices between the initiating device and the terminating device. The terminating device sends the reply with a hop count equal to one and quality of service information for a first link (hop) toward the initiating device. Each intermediate device increments the hop count in the reply and adds quality of service information for a next link (hop) into the reply.

System, Device, And Method For Supporting Cut-Through Paths In An Optical Communication System
view source
US Patent:

8548325, Oct 1, 2013
Filed:

Jul 16, 2010
Appl. No.:

12/837657
Inventors:

Gautam Khera - Chelmsford MA, US
Leigh C. McLellan - Framingham MA, US
Assignee:

Ciena Corporation - Hanover MD
International Classification:

H04J 14/00
H04B 17/00
H04L 12/28
US Classification:

398 57, 398 25, 370351, 37039521
Abstract:

A system, device, and method for supporting cut-through pats in an optical communication system involves obtaining hop count and quality of service information by an initiating device and using the hop count and quality of service information by the initiating device to make decisions relating to a cut-through path. The hop count and quality of service information is provided in a reply message that is sent by a terminating device and modified by intermediate devices between the initiating device and the terminating device. The terminating device sends the reply with a hop count equal to one and quality of service information for a first link (hop) toward the initiating device. Each intermediate device increments the hop count in the reply and adds quality of service information for a next link (hop) into the reply.

Dynamic Sensor Network Registry
view source
US Patent:

20090222541, Sep 3, 2009
Filed:

Nov 6, 2006
Appl. No.:

12/096238
Inventors:

Indermohan Monga - Acton MA, US
Garth Jenkins - Belmont MA, US
Gautam Khera - Walpole MA, US
Assignee:

NORTEL NETWORKS LIMITED - ST. LAURENT QC
International Classification:

G06F 15/177
G06F 15/173
H04L 9/32
G06F 17/30
US Classification:

709222, 709224, 726 12, 707100, 707E17127
Abstract:

A scalable network architecture adapted to interface with various sensor types and sensor access mechanisms while providing real-time access to sensor data for distributed applications and organizations is described. A centralized sensor network service manages the registration, capabilities, near real-time status of the sensors and their current network connections. New sensors are discovered automatically through messaging between network access nodes and the sensor registry. The registry service can be made available to distributed sensor applications and sensor middleware, and facilitates the sharing of sensors across organizations. The sensor registry is automatically updated by network software and does not require manual configuration or reconfiguration each time a sensor is added to or relocated within the network. Authentication and authorization policies can be implemented to ensure that only authorized applications can query and view the registry. The registry can be implemented for multi-vendor sensor networks and can accommodate multiple addressing schemes.

Extension Of The Interpretation And Definition Of The Is-Is Tlv/Sub-Tlv
view source
US Patent:

20130077625, Mar 28, 2013
Filed:

Sep 23, 2011
Appl. No.:

13/242250
Inventors:

Gautam Khera - Walpole MA, US
Srikanth Keesara - Tewksbury MA, US
Rama S. Apalla - Nashua NH, US
Assignee:

AVAYA INC. - Basking Ridge NJ
International Classification:

H04L 12/56
US Classification:

370390
Abstract:

Techniques disclosed herein include systems and methods for improving efficiency of multicast state generation within Shortest Path Bridging (SPB) networks. Techniques include using an IS-IS TLV structure with new multicast state computation rules for SPB Networks. SPB Networks use a TLV field for the I-SID Address (and equivalent TLV fields defined in different IETF/IEEE drafts) and node nicknames to signal information that is used to compute a multicast state required to provide L2 Services over a given SPB Network. The I-SID Address TLV is set or filled to carry various items of information. These items of information can include Backbone Media Access Control (B-MAC), Virtual Local Area Network Identifier (VID), I-SID[Transmit, Receive Bit], etc.

Separation Of Edge And Routing/Control Information For Multicast Over Shortest Path Bridging
view source
US Patent:

20130077626, Mar 28, 2013
Filed:

Sep 23, 2011
Appl. No.:

13/242422
Inventors:

Srikanth Keesara - Tewksbury MA, US
Gautam Khera - Walpole MA, US
Rama S. Apalla - Nashua NH, US
Assignee:

Avaya Inc. - Basking Ridge NJ
International Classification:

H04L 12/56
US Classification:

370390
Abstract:

Techniques disclosed herein include systems and methods for providing a scalable solution to transmit edge IP Multicast sender information in a Shortest Path Bridging (SPB) network. Control information is exchanged between Ingress Backbone Edge Bridges and Egress Backbone Edge Bridges using Multicast Flow Specific and type-length-value (TLV) structures, or other control messages, to announce available multicast streams at ingress nodes within the SPB network. Such exchanges of control messages trigger sending SPB specific Intermediate System To Intermediate System (IS-IS) TLV control message with path computation information via IS-IS control messages. This second set of control messages is exchanged within the SPB network and includes source-specific multicast stream information that is used by Backbone Core Bridges to establish a multicast forward state and compute multicast forwarding paths. Multicast data traffic can then be transmitted through the SPB network using a one-to-many distribution model.

Method To Route Multicast Data In Spb Network By Establishing The Virtual Pim Adjacency Across The Spb Networks In A Single Pim Domain
view source
US Patent:

20130077628, Mar 28, 2013
Filed:

Sep 28, 2011
Appl. No.:

13/247037
Inventors:

Rama S. Appalla - Nashua NH, US
Gautam Khera - Walpole MA, US
Julie McGray - North Andover MA, US
Assignee:

Avaya Inc. - Basking Ridge NJ
International Classification:

H04L 12/56
US Classification:

370390
Abstract:

Techniques disclosed herein include systems and methods that extend Protocol Independent Multicast (PIM) protocols to Shortest Path Bridging (SPB) technology. This includes connecting an IP multicast domain across an SPB network. SPB edge routers, also known as Backbone Edge Bridges, form virtual adjacencies with each other. As such, SPB edge routers maintain such PIM adjacency without sending Hello messages. Backbone Edge Bridges (BEBs) are discovered using null Intermediate System To Intermediate System (IS-IS) Internet Protocol Multicast (IPMC) type-length-value (TLV) control messages. Each PIM-enabled BEB records other PIM-enabled BEBs as an adjacent PIM-router in response to receiving a NULL IPMC TLV from those BEBs. Accordingly, PIM-enabled BEBs form a full mesh virtual adjacency between each other and can thereby encapsulate PIM control messages sent and received between two access networks connected to the SPB network.

Shortest Path Bridging (Spb) Multi Area And Virtual Spb Node
view source
US Patent:

20220255842, Aug 11, 2022
Filed:

Feb 5, 2021
Appl. No.:

17/168909
Inventors:

- San Jose CA, US
Gautam KHERA - Sugarland TX, US
Assignee:

Extreme Networks, Inc. - San Jose CA
International Classification:

H04L 12/733
H04L 12/721
H04L 12/717
H04L 12/751
Abstract:

Disclosed herein are system, method, and computer program product aspects for generating and/or using virtual node(s) (e.g., virtual SPB node(s)) in a multi-area fabric (e.g., a multi-area SPB fabric). A multi-area network includes a first network area including a first set of network nodes. The multi-area network further includes a second network area including a second set of network nodes, where the second set of network nodes is outside of the first network area. The multi-area network further includes a virtual node including a logical Intermediate System to Intermediate System (ISIS) node representing at least one of the first set of network nodes and the second set of network nodes.