Patents by Inventor Dennis Makishima

Dennis Makishima 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).

  • Patent number: 9185018
    Abstract: One embodiment of the present invention provides a system for mapping all possible paths between a source node and a destination node. During operation, the system receives a management frame, determines all possible next-hop nodes based on a destination address carried in the payload of the management frame. The system then selects one of the next-hop nodes, and modifies payload of the received management frame to include information associated with the next-hop nodes and the selected next-hop node. The system then forwards the modified data frame to the selected next-hop node.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: November 10, 2015
    Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.
    Inventors: Dennis Makishima, Vidya Renganarayanan, Anil Kumar Chintalapati, Sathish K. Gnanasekaran, Daniel Ji Young Park Chung, Vidya Sagar Ravipati
  • Publication number: 20120099443
    Abstract: One embodiment of the present invention provides a system for mapping all possible paths between a source node and a destination node. During operation, the system receives a management frame, determines all possible next-hop nodes based on a destination address carried in the payload of the management frame. The system then selects one of the next-hop nodes, and modifies payload of the received management frame to include information associated with the next-hop nodes and the selected next-hop node. The system then forwards the modified data frame to the selected next-hop node.
    Type: Application
    Filed: July 8, 2011
    Publication date: April 26, 2012
    Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.
    Inventors: Dennis Makishima, Vidya Renganarayanan, Anil Kumar Chintalapati, Sathish K. Gnanasekaran, Daniel Ji Young Park Chung, Vidya Sagar Ravipati
  • Patent number: 8009693
    Abstract: A system and method for providing transparent communications between an Infiniband (IB) network and a Fibre Channel (FC) network are disclosed. One method comprises: (a) detecting FC node ports in the FC network; (b) creating virtual IB targets for each FC node port in the FC network; and (c) converting IB packets directed to the virtual IB targets into FC frames directed to the corresponding FC node port. It may further comprise intercepting management packets directed to the virtual IB targets and responsively emulating a subnet management agent (SMA) of the addressed virtual IB target. Another method comprises: (a) detecting IB channel adapters; (b) creating a virtual FC target for each IB channel adapter; and (c) converting any FC frames directed to the virtual FC targets into IB packets directed to the corresponding IB channel adapter. Fabric frames directed to the virtual FC targets may be intercepted and handled appropriately.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: August 30, 2011
    Assignee: Brocade Communication Systems, Inc.
    Inventors: Feejen Liao, Dennis Makishima, Howard Green, Brian Forbes, Daniel Chung
  • Publication number: 20070201356
    Abstract: A system and method for providing transparent communications between an Infiniband (IB) network and a Fibre Channel (FC) network are disclosed. One method comprises: (a) detecting FC node ports in the FC network; (b) creating virtual IB targets for each FC node port in the FC network; and (c) converting IB packets directed to the virtual IB targets into FC frames directed to the corresponding FC node port. It may further comprise intercepting management packets directed to the virtual IB targets and responsively emulating a subnet management agent (SMA) of the addressed virtual IB target. Another method comprises: (a) detecting IB channel adapters; (b) creating a virtual FC target for each IB channel adapter; and (c) converting any FC frames directed to the virtual FC targets into IB packets directed to the corresponding IB channel adapter. Fabric frames directed to the virtual FC targets may be intercepted and handled appropriately.
    Type: Application
    Filed: March 8, 2007
    Publication date: August 30, 2007
    Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.
    Inventors: Feejen LIAO, Dennis MAKISHIMA, Howard GREEN, Brian FORBES, Daniel CHUNG
  • Patent number: 7236496
    Abstract: An Inifiniband (IB) network that incorporates a Fibre Channel (FC) network is disclosed. The IB and FC networks are coupled by a gateway that maps the FC network to a virtual IB network. In generating the virtual IB network, the gateway may provide a virtual IB target for each node port in the FC network, and may further provide a minimum number of virtual IB switches necessary to support the virtual IB targets. The gateway assigns a globally unique identifier (GUID) to each of the virtual IB targets, and may further associate local identifiers (LID) with the virtual IB targets. The gateway preferably emulates subnet management agents (SMA) and general service agents (GSA) of the virtual IB targets when management IB packets are received, and the gateway preferably converts non-management IB packets directed to the virtual IB targets into FC frames directed to the corresponding target FC devices.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: June 26, 2007
    Assignee: Brocade Communications Systems, Inc.
    Inventors: Daniel Chung, Dennis Makishima, Brian Forbes, Howard Green, Vincent Guan, Grant Erickson
  • Patent number: 7206314
    Abstract: A system and method for providing transparent communications between an Infiniband (IB) network and a Fibre Channel (FC) network are disclosed. One method comprises: (a) detecting FC node ports in the FC network; (b) creating virtual IB targets for each FC node port in the FC network; and (c) converting IB packets directed to the virtual IB targets into FC frames directed to the corresponding FC node port. It may further comprise intercepting management packets directed to the virtual IB targets and responsively emulating a subnet management agent (SMA) of the addressed virtual IB target. Another method comprises: (a) detecting IB channel adapters; (b) creating a virtual FC target for each IB channel adapter; and (c) converting any FC frames directed to the virtual FC targets into IB packets directed to the corresponding IB channel adapter. Fabric frames directed to the virtual FC targets may be intercepted and handled appropriately.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: April 17, 2007
    Assignee: Brocade Communications Systems, Inc.
    Inventors: Feejen Liao, Dennis Makishima, Howard Green, Brian Forbes, Daniel Chung
  • Publication number: 20060023725
    Abstract: A Fibre Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fibre Channel router can be in a fabric, but other ports can be connected to other fabrics. Fibre Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fibre Channel switch devices in the backbone fabric and simplify Fibre Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventors: Dennis Makishima, Daniel Chung
  • Publication number: 20060023726
    Abstract: A Fibre Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fibre Channel router can be in a fabric, but other ports can be connected to other fabrics. Fibre Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fibre Channel switch devices in the backbone fabric and simplify Fibre Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventors: Daniel Chung, Dennis Makishima
  • Publication number: 20060023751
    Abstract: A Fibre Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fibre Channel router can be in a fabric, but other ports can be connected to other fabrics. Fibre Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fibre Channel switch devices in the backbone fabric and simplify Fibre Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventors: Steven Wilson, Robert Snively, Edward McClanahan, Dennis Makishima, Daniel Chung
  • Publication number: 20060023708
    Abstract: A Fibre Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fibre Channel router can be in a fabric, but other ports can be connected to other fabrics. Fibre Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fibre Channel switch devices in the backbone fabric and simplify Fibre Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventors: Robert Snively, Steven Wilson, Edward McClanahan, Dennis Makishima, Daniel Ji Yong Chung
  • Publication number: 20060023707
    Abstract: A Fibre Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fibre Channel router can be in a fabric, but other ports can be connected to other fabrics. Fibre Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fibre Channel switch devices in the backbone fabric and simplify Fibre Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventors: Dennis Makishima, Daniel Chung
  • Publication number: 20040024911
    Abstract: An Inifiniband (IB) network that incorporates a Fibre Channel (FC) network is disclosed. The IB and FC networks are coupled by a gateway that maps the FC network to a virtual IB network. In generating the virtual IB network, the gateway may provide a virtual IB target for each node port in the FC network, and may further provide a minimum number of virtual IB switches necessary to support the virtual IB targets. The gateway assigns a globally unique identifier (GUID) to each of the virtual IB targets, and may further associate local identifiers (LID) with the virtual IB targets. The gateway preferably emulates subnet management agents (SMA) and general service agents (GSA) of the virtual IB targets when management IB packets are received, and the gateway preferably converts non-management IB packets directed to the virtual IB targets into FC frames directed to the corresponding target FC devices.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Applicant: Brocade Communications Systems, Inc.
    Inventors: Daniel Chung, Dennis Makishima, Brian Forbes, Howard Green, Vincet Guan, Grant Erickson
  • Publication number: 20040024905
    Abstract: A system and method for providing transparent communications between an Infiniband (IB) network and a Fibre Channel (FC) network are disclosed. One method comprises: (a) detecting FC node ports in the FC network; (b) creating virtual IB targets for each FC node port in the FC network; and (c) converting IB packets directed to the virtual IB targets into FC frames directed to the corresponding FC node port. It may further comprise intercepting management packets directed to the virtual IB targets and responsively emulating a subnet management agent (SMA) of the addressed virtual IB target. Another method comprises: (a) detecting IB channel adapters; (b) creating a virtual FC target for each IB channel adapter; and (c) converting any FC frames directed to the virtual FC targets into IB packets directed to the corresponding IB channel adapter. Fabric frames directed to the virtual FC targets may be intercepted and handled appropriately.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Applicant: Brocade Communications Systems, Inc.
    Inventors: Feejen Liao, Dennis Makishima, Howard Green, Brian Forbes, Daniel Chung