Patents by Inventor Rishi Mehta

Rishi Mehta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20160092258
    Abstract: Systems and methods for preferentially assigning virtual machines (VMs) on a particular NUMA node with network queues on the same NUMA node are described. A load balancer process on a host assigns multiple VMs to network queues. The assignment of the VMs to a network queues is performed with a bias toward assigning VMs using a particular NUMA node to network queues on the same NUMA node. A scheduler on the host assigns VMs to NUMA nodes. The scheduler is biased toward assigning VMs to the same NUMA node as the PNIC and/or the same NUMA node as a network queue assigned to the VM.
    Type: Application
    Filed: October 31, 2014
    Publication date: March 31, 2016
    Inventors: Rishi Mehta, Xiaochuan Shen, Amitabha Banerjee, Ayyappan Veeraiyan
  • Publication number: 20150271073
    Abstract: In a computer-implemented method for reducing delay of bursty data transmission in a network employing a congestion control protocol, data is accessed that is to be periodically transmitted over a network employing a congestion control protocol. The data is to be periodically transmitted with a high burst rate followed by an idle period. The congestion control protocol progressively increases a data transmission rate during a data transmission rate increase period invoked immediately following a predetermined idle period. Prior to transmitting the data, priming data is transmitted during at least a portion of the idle period until the congestion control protocol progressively increases the data transmission rate to a desired transmission rate. The data is transmitted at the desired transmission rate.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 24, 2015
    Applicant: VMware,Inc.
    Inventors: Kalyan SALADI, Rishi MEHTA
  • Patent number: 8842550
    Abstract: A first network element that is to be coupled with a second network element over a first network in the same domain is described. The first network element includes a connectivity check detection module and a connectivity check fault state change module. The connectivity check detection module detects, according to a first protocol, a connectivity status of a local maintenance endpoint on a second network changing between not active and active. The connectivity check fault state change module creates and sends a first fault state change message, according to a second protocol, in response to the connectivity status of the local maintenance endpoint changing from not active to active instead of forwarding connectivity check messages periodically received by the first network element to a remote maintenance endpoint coupled to the second network element over a third network.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 23, 2014
    Assignee: Ericsson AB
    Inventors: Sriganesh Kini, Rishi Mehta
  • Patent number: 8817601
    Abstract: Techniques for recovering from hierarchical virtual private LAN service (HVPLS) hub connectivity failure with a dynamic spoke pseudowire. According to one embodiment of the invention, a provider edge (PE) network element in the HVPLS hub monitors for a failure of HVPLS hub connectivity failure and reuses an HVPLS spoke connectivity failure recovery mechanism in an MTU by fabricating failure of one or more spoke facing connectivity elements coupling the MTU with the PE network element causing the MTU to transition to a secondary PE network element in the HVPLS hub. In addition, the PE network element establishes a dynamic spoke pseudowire for each virtual instance affected with the MTU to restore HVPLS hub connectivity for that PE network element.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: August 26, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Sriganesh Kini, Rishi Mehta
  • Publication number: 20130336122
    Abstract: A method for load balancing IPTV channels is described. In one embodiment of the invention, a first Provider Edge (PE) network element of a label switched network, coupled with a second PE network element over multiple member links of an aggregate link, receives IPTV packets. For each IPTV packet received, the first PE network determines layer 3 information of the IPTV packet, and generates one or more channel load balancing keys based on the layer 3 information. The PE network element generates a hash value from the channel load balancing keys and determines which one of multiple member links to transmit the IPTV packet on based on the hash value, and transmits the IPTV packet to the second PE network element on the determined member link. Other methods and apparatuses are also described.
    Type: Application
    Filed: July 17, 2013
    Publication date: December 19, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Pritam Baruah, Rishi Mehta
  • Patent number: 8537679
    Abstract: A method for load balancing IPTV channels is described. In one embodiment of the invention, a first Provider Edge (PE) network element of a label switched network, coupled with a second PE network element over multiple member links of an aggregate link, receives IPTV packets. For each IPTV packet received, the first PE network determines layer 3 information of the IPTV packet, and generates one or more channel load balancing keys based on the layer 3 information. The PE network element generates a hash value from the channel load balancing keys and determines which one of multiple member links to transmit the IPTV packet on based on the hash value, and transmits the IPTV packet to the second PE network element on the determined member link. Other methods and apparatuses are also described.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: September 17, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Pritam Baruah, Rishi Mehta
  • Patent number: 8411701
    Abstract: On a first network element in a radio access network (RAN), supporting operations, management and administration (OAM) between network elements that support Ethernet in the first mile (EFM) and network elements that support connectivity fault management (CFM) in the radio access network by receiving an EFM message from a second network element that supports EFM, wherein the second network element is in the RAN and wherein the EFM message includes OAM data; converting the OAM data from the EFM message into a sub-type-length-value (sub-TLV) of a CFM message; and transmitting the CFM message including the OAM data in the sub-TLV to a third network element that supports CFM, wherein the third network element is in the RAN, whereby an end-to-end OAM sublayer is provided in the RAN by conversion of OAM data from EFM to CFM.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: April 2, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Sriganesh Kini, Rishi Mehta
  • Publication number: 20130010607
    Abstract: A first network element that is to be coupled with a second network element over a first network in the same domain is described. The first network element includes a connectivity check detection module and a connectivity check fault state change module. The connectivity check detection module detects, according to a first protocol, a connectivity status of a local maintenance endpoint on a second network changing between not active and active. The connectivity check fault state change module creates and sends a first fault state change message, according to a second protocol, in response to the connectivity status of the local maintenance endpoint changing from not active to active instead of forwarding connectivity check messages periodically received by the first network element to a remote maintenance endpoint coupled to the second network element over a third network.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Inventors: SRIGANESH KINI, RISHI MEHTA
  • Patent number: 8284677
    Abstract: A method and apparatus that proxies connectivity check messages and sends fault state changes messages across an MPLS/VPLS network is described. A network element proxies connectivity check messages for remote maintenance endpoints based on a local database. The network element updates the database based on received fault state change message that identify a fault state change of a remote maintenance endpoint. The network element detects fault state changes of local maintenance endpoints and sends a fault state change message to other network elements that proxy connectivity check message for the local maintenance endpoints.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: October 9, 2012
    Assignee: Ericsson AB
    Inventors: Sriganesh Kini, Rishi Mehta
  • Patent number: 8284678
    Abstract: A method and apparatus that proxies connectivity check messages and sends fault state changes messages across an MPLS/VPLS network is described. A network element proxies connectivity check messages for remote maintenance endpoints based on a local database. The network element updates the database based on received fault state change message that identify a fault state change of a remote maintenance endpoint. The network element detects fault state changes of local maintenance endpoints and sends a fault state change message to other network elements that proxy connectivity check message for the local maintenance endpoints.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: October 9, 2012
    Assignee: Ericsson AB
    Inventors: Sriganesh Kini, Rishi Mehta
  • Patent number: 8223642
    Abstract: Differentiated services for network traffic using weighted quality of service is provided. Network traffic is queued into separate per flow queues, and traffic is scheduled from the per flow queues into a group queue. Congestion management is performed on traffic in the group queue. Traffic is marked with priority values, and congestion management is performed based on the priority values. For example, traffic can be marked as “in contract” if it is within a contractual limit, and marked as “out of contract” if it is not within the contractual limit. Marking can also include classifying incoming traffic based on Differentiated Service Code Point. Higher priority traffic can be scheduled from the per flow queues in a strict priority over lower priority traffic. The lower priority traffic can be scheduled in a round robin manner.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: July 17, 2012
    Assignee: Tellabs San Jose, Inc.
    Inventors: David S. Curry, Robert J. Colvin, Samer I. Nubani, Ravindra Sunkad, Man-Tung T. Hsiao, Paul M. Hallinan, Rishi Mehta, Sanjay Khanna
  • Publication number: 20110310730
    Abstract: Techniques for recovering from hierarchical virtual private LAN service (HVPLS) hub connectivity failure with a dynamic spoke pseudowire. According to one embodiment of the invention, a provider edge (PE) network element in the HVPLS hub monitors for a failure of HVPLS hub connectivity failure and reuses an HVPLS spoke connectivity failure recovery mechanism in an MTU by fabricating failure of one or more spoke facing connectivity elements coupling the MTU with the PE network element causing the MTU to transition to a secondary PE network element in the HVPLS hub. In addition, the PE network element establishes a dynamic spoke pseudowire for each virtual instance affected with the MTU to restore HVPLS hub connectivity for that PE network element.
    Type: Application
    Filed: August 25, 2011
    Publication date: December 22, 2011
    Inventors: Sriganesh Kini, Rishi Mehta
  • Patent number: 8064338
    Abstract: Techniques for recovering from hierarchical virtual private LAN service (HVPLS) hub connectivity failure with a dynamic spoke pseudowire. According to one embodiment of the invention, a provider edge (PE) network element in the HVPLS hub monitors for a failure of HVPLS hub connectivity failure and reuses an HVPLS spoke connectivity failure recovery mechanism in an MTU by fabricating failure of one or more spoke facing connectivity elements coupling the MTU with the PE network element causing the MTU to transition to a secondary PE network element in the HVPLS hub. In addition, the PE network element establishes a dynamic spoke pseudowire for each virtual instance affected with the MTU to restore HVPLS hub connectivity for that PE network element.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: November 22, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Sriganesh Kini, Rishi Mehta
  • Publication number: 20110249567
    Abstract: On a first network element in a radio access network (RAN), supporting operations, management and administration (OAM) between network elements that support Ethernet in the first mile (EFM) and network elements that support connectivity fault management (CFM) in the radio access network by receiving an EFM message from a second network element that supports EFM, wherein the second network element is in the RAN and wherein the EFM message includes OAM data; converting the OAM data from the EFM message into a sub-type-length-value (sub-TLV) of a CFM message; and transmitting the CFM message including the OAM data in the sub-TLV to a third network element that supports CFM, wherein the third network element is in the RAN, whereby an end-to-end OAM sublayer is provided in the RAN by conversion of OAM data from EFM to CFM.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 13, 2011
    Applicant: Telefonaktiebolaget L M Ericsson
    Inventors: Sriganesh Kini, Rishi Mehta
  • Patent number: 8018863
    Abstract: A method and apparatus for reducing the number of CC messages transmitted in a provider network. In one embodiment of the invention, a first service provider network element receives CC messages from a first customer network at a first periodicity rate. The first service provider network element stores the received CC messages and reduces the first periodicity rate to create a second periodicity rate that is smaller than the first periodicity rate. The first service provider network element transmits CC messages to a second service provider network element through the provider network at the second periodicity rate. Other methods and apparatus are also described.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: September 13, 2011
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Sriganesh Kini, Rishi Mehta
  • Patent number: 7966420
    Abstract: Techniques for providing connectivity fault management (CFM) for a multi-tiered network are described herein. In one embodiment, a link trace message (LTM) is received at a provider edge (PE) router and originated from a first Ethernet node and destined to a second Ethernet node, where the PE router interfaces an Ethernet and a multi-protocol label switching (MPLS) network. In response, the PE router initiates an MPLS trace session, including generating an MPLS trace message based on the LTM message to one or more MPLS nodes along a path between the first and second Ethernet nodes within the MPLS network. Subsequently, in response to one or more MPLS trace reply messages from the MPLS nodes of the MPLS network, the PE router generates a first link trace reply (LTR) message and sends the first LTR message to the first Ethernet node over the Ethernet. Other methods and apparatuses are also described.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: June 21, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Rishi Mehta, Sriganesh Kini, Peter Arberg
  • Publication number: 20100165832
    Abstract: Techniques for recovering from hierarchical virtual private LAN service (HVPLS) hub connectivity failure with a dynamic spoke pseudowire. According to one embodiment of the invention, a provider edge (PE) network element in the HVPLS hub monitors for a failure of HVPLS hub connectivity failure and reuses an HVPLS spoke connectivity failure recovery mechanism in an MTU by fabricating failure of one or more spoke facing connectivity elements coupling the MTU with the PE network element causing the MTU to transition to a secondary PE network element in the HVPLS hub. In addition, the PE network element establishes a dynamic spoke pseudowire for each virtual instance affected with the MTU to restore HVPLS hub connectivity for that PE network element.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Inventors: Sriganesh Kini, Rishi Mehta
  • Publication number: 20100061252
    Abstract: A method and apparatus for reducing the number of CC messages transmitted in a provider network. In one embodiment of the invention, a first service provider network element receives CC messages from a first customer network at a first periodicity rate. The first service provider network element stores the received CC messages and reduces the first periodicity rate to create a second periodicity rate that is smaller than the first periodicity rate. The first service provider network element transmits CC messages to a second service provider network element through the provider network at the second periodicity rate. Other methods and apparatus are also described.
    Type: Application
    Filed: September 9, 2008
    Publication date: March 11, 2010
    Inventors: Sriganesh Kini, Rishi Mehta
  • Publication number: 20090279431
    Abstract: A method for load balancing IPTV channels is described. In one embodiment of the invention, a first Provider Edge (PE) network element of a label switched network, coupled with a second PE network element over multiple member links of an aggregate link, receives IPTV packets. For each IPTV packet received, the first PE network determines layer 3 information of the IPTV packet, and generates one or more channel load balancing keys based on the layer 3 information. The PE network element generates a hash value from the channel load balancing keys and determines which one of multiple member links to transmit the IPTV packet on based on the hash value, and transmits the IPTV packet to the second PE network element on the determined member link. Other methods and apparatuses are also described.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 12, 2009
    Inventors: Pritam Baruah, Rishi Mehta
  • Publication number: 20090109861
    Abstract: A method and apparatus that proxies connectivity check messages and sends fault state changes messages across an MPLS/VPLS network is described. A network element proxies connectivity check messages for remote maintenance endpoints based on a local database. The network element updates the database based on received fault state change message that identify a fault state change of a remote maintenance endpoint. The network element detects fault state changes of local maintenance endpoints and sends a fault state change message to other network elements that proxy connectivity check message for the local maintenance endpoints.
    Type: Application
    Filed: March 17, 2008
    Publication date: April 30, 2009
    Inventors: Sriganesh Kini, Rishi Mehta