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Roshan L Lal

from Stockton, CA
Age ~85

Roshan Lal Phones & Addresses

  • 951 Kate Linde Cir, Stockton, CA 95206 (209) 234-7254
  • 1266 Gentry Ct, Tracy, CA 95377 (209) 832-1251
  • Fremont, CA
  • Lathrop, CA
  • Oakland, CA
  • San Joaquin, CA
  • 2107 Lighthouse Cir, Tracy, CA 95304 (626) 392-1978

Work

Position: Food Preparation and Serving Related Occupations

Education

Degree: High school graduate or higher

Professional Records

Medicine Doctors

Roshan Lal Photo 1

Roshan Lal

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Specialties:
Internal Medicine
Cardiovascular Disease
Cardiology
Education:
Guru Nanak Dev University Medical College (1955)

Publications

Us Patents

Efficient Multi-Path Routing Flow Provisioning Telemetry In Protocol Independent Multicast

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US Patent:
20220337441, Oct 20, 2022
Filed:
Apr 16, 2021
Appl. No.:
17/232848
Inventors:
- San Jose CA, US
Roshan Lal - San Jose CA, US
Padmanab Pathikonda - Mountain House CA, US
Francesco Meo - San Jose CA, US
Ramakrishnan Chokkanathapuram Sundaram - Kanata, CA
International Classification:
H04L 12/18
H04L 12/707
Abstract:
This disclosure describes techniques for improved multicast network telemetry implemented over multilayer switches in a PIM domain. The multilayer switches may be configured to collectively certify end-to-end flow provisioning, and to publish telemetry data certifying flow provisioning from a single notifier to an external controller host. Computational workload and network traffic for streaming data related to certifying path provisioning is kept to a minimum for each flow that needs to be certified, which also keeps compounding of network traffic for many different flows to a minimum. Moreover, since controller hosts are notified upon successful provisioning but not at other times, controller hosts can trust that the telemetric data is minimally latent, and may be relied upon to enact timely actions which produce desired outcomes.

Establishing A Multicast Flow Path Through A Network Using Multicast Resources Currently Associated With A Different Multicast Flow Path

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US Patent:
20210377153, Dec 2, 2021
Filed:
Jun 2, 2020
Appl. No.:
16/946021
Inventors:
- San Jose CA, US
Roshan LAL - San Jose CA, US
Assignee:
Cisco Technology, Inc., a California corporation - San Jose CA
International Classification:
H04L 12/761
Abstract:
In one embodiment, resource availability reallocation is used in establishing one or more new designated multicast flow paths with guaranteed availability of resources currently allocated and/or used by one or more designated existing multicast flow path to allocate/use for the new designated flow path(s). These resources typically include allocated guaranteed bandwidth of a network path between two adjacent or non-adjacent nodes of the network, and possibly forwarding/processing/memory resources of a network node. One embodiment communicates multicast control messages between nodes identifying to establish a new multicast flow path with resource availability reallocation from a designated multicast flow path. In one embodiment, a Protocol Independent Multicast-Sparse Mode (PIM-SM) Join/Prune Message identifies Pruning of one or more multicast flow paths and Joining of one or more different multicast flow paths and designating resource availability reallocation from these Pruned multicast flow path(s) to these Joined multicast flow path(s).

Automatic Configuration And Connection Of Heterogeneous Bandwidth Managed Multicast Fabrics

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US Patent:
20210314259, Oct 7, 2021
Filed:
Jun 14, 2021
Appl. No.:
17/347345
Inventors:
- San Jose CA, US
Stig Ingvar Venaas - Oakland CA, US
Roshan Lal - San Jose CA, US
Rishi Chhibber - Dublin CA, US
Ravinder Vissapragada - Dublin CA, US
International Classification:
H04L 12/781
H04L 29/12
H04L 12/751
H04L 12/18
H04L 12/715
Abstract:
Techniques for utilizing Software-Defined Networking (SDN) controllers and network border leaf nodes of respective cloud computing networks to configure a data transmission route for a multicast group. Each border leaf node may maintain a respective external sources database, including a number of records indicating associations between a multicast data source, one or more respective border leaf nodes disposed in the same network as the multicast data source, and network capability information. A border leaf node, disposed in the same network as a multicast data source, may broadcast a local source discovery message to all border leaf nodes in remote networks to which it is communicatively coupled. A border leaf node may also communicate network capability information associated with one or more remote networks to a local SDN controller. The SDN controller may utilize the network capability information to configure a data transmission route to one or more destination nodes.

Multicast Traceroute Facility With Batch Query Processing For Multiple Flows And Reservation Of Resources For Requested Link Metrics

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US Patent:
20200344155, Oct 29, 2020
Filed:
Apr 24, 2019
Appl. No.:
16/392974
Inventors:
- San Jose CA, US
Roshan Lal - San Jose CA, US
Rahul Savarapu Parameswaran - Union City CA, US
Subhasri Dhesikan - Flower Mound TX, US
Stig Ingvar Venaas - Oakland CA, US
International Classification:
H04L 12/721
H04L 12/761
H04L 12/801
H04L 12/911
H04L 12/741
H04L 12/733
Abstract:
In one illustrative example, a multicast traceroute facility for a plurality of interconnected router nodes which are configured to communicate IP multicast traffic amongst hosts is described. The multicast traceroute facility may be for use in processing a multicast traceroute batch query packet which indicates a batch of multicast traceroute queries of a batch query, for identifying a plurality of traced paths for a batch of IP multicast traffic flows. Each identified traced path may be associated with one or more links, each of which has a link metric that satisfies a requested link metric (e.g. a link bandwidth). Resources for satisfying the requested link metric may be reserved for a predetermined or specified time period. The batch of IP multicast traffic flows may be established via at least some of the interconnected router nodes according to the plurality of traced paths identified from the query packet processing.

In Service Flow Capability Update In Guaranteed Bandwidth Multicast Network

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US Patent:
20200336429, Oct 22, 2020
Filed:
Apr 19, 2019
Appl. No.:
16/389197
Inventors:
- San Jose CA, US
Rishi Chhibber - Dublin CA, US
Roshan Lal - San Jose CA, US
Varun Manchanda - San Jose CA, US
Francesco Meo - San Jose CA, US
Vaibhav Dhage - San Jose CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 12/801
H04L 12/761
H04L 12/721
H04L 12/729
H04L 12/923
H04L 12/927
Abstract:
In service flow capability updating in a guaranteed bandwidth multicast network may be provided. First, a node may determine that a bandwidth requirement of a flow has changed to a new bandwidth value. Then, in response to determining that the bandwidth requirement of the flow has changed to the new bandwidth value, an ingress capacity value may be updated in an interface usage table for a Reverse Path Forwarding (RPF) interface corresponding to the flow. The RPF interface may be disposed on a network device. Next, in response to determining that the bandwidth requirement of the flow has changed to the new bandwidth value, an egress capacity value may be updated in the interface usage table for an Outgoing Interface (OIF) corresponding to the flow. The OIF may be disposed on the network device.

Host Policy Management In A Network Fabric Of Interconnected Switches For Ip Multicast Traffic Delivery

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US Patent:
20200259764, Aug 13, 2020
Filed:
Feb 12, 2019
Appl. No.:
16/273496
Inventors:
- San Jose CA, US
Varun Manchanda - San Jose CA, US
Rishi Chhibber - Dublin CA, US
Meo Francesco - San Jose CA, US
Roshan Lal - San Jose CA, US
Padmanab Pathikonda - Mountain House CA, US
International Classification:
H04L 12/911
H04L 12/933
H04L 12/813
H04L 12/801
Abstract:
In one illustrative example, a switch for use in a network fabric which includes a plurality on interconnected switches configured to facilitate communication of IP multicast traffic amongst host devices may be provided. The switch may receive, from a controller, a global set of host policies associated with the plurality of switches of the network fabric. The switch may select, from the global set of host policies, a local subset of host policies applicable to the switch. The switch may grant or deny admission of host devices to receive or send IP multicast traffic flows in the network fabric according to the selected, local subset of host policies.

Efficient Configuration Of Multicast Flows

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US Patent:
20200044929, Feb 6, 2020
Filed:
Jul 31, 2018
Appl. No.:
16/050049
Inventors:
- San Jose CA, US
Roshan Lal - San Jose CA, US
Padmanab Pathikonda - Dublin CA, US
International Classification:
H04L 12/24
H04L 12/18
H04L 12/751
G06F 9/54
Abstract:
In one example embodiment, a network node of a plurality of network nodes in a multicast path is configured to provide a multicast flow from a source of the multicast flow to a receiver of the multicast flow. The network node obtains, from the receiver in a reverse direction of the multicast path, configuration instructions specifying a configuration of the multicast flow. The network node implements the configuration of the multicast flow in accordance with the configuration instructions, and provides the configuration instructions toward the source in the reverse direction of the multicast path.

Methods And Apparatuses For Non-Blocking Ip Multicast Delivery Of Media Data In A Multi-Spine Network

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US Patent:
20200028774, Jan 23, 2020
Filed:
Jul 23, 2018
Appl. No.:
16/042870
Inventors:
- San Jose CA, US
RISHI CHHIBBER - Dublin CA, US
ROSHAN LAL - San Jose CA, US
ANN ROSHINI PAUL - San Jose CA, US
ANAND KUMAR SINGH - Cupertino CA, US
NATARAJ BATCHU - Sunnyvale CA, US
International Classification:
H04L 12/761
Abstract:
In one illustrative example, an IP network media data router includes a spine and leaf switch architecture operative to provide IP multicast delivery of media data from source devices to receiver devices without the overhead communication with a controller. The architecture can include K spine switches, K sets of L leaf switches, M data links between each leaf switch, and a plurality of bidirectional data ports connected to each leaf switch for a guaranteed non-blocking IP multicast delivery of data. A deterministic hash function a used on both the first hop router and the last hop router to ensure the same spine node is selected for flow stitching. Accordingly, without the extra communication with a centralized controller, the right spine for establishing a multicast flow can be chosen using the deterministic hash function and the distributed resource information stored on each node.
Roshan L Lal from Stockton, CA, age ~85 Get Report