Patents by Inventor Daniel Ji Yong Park Chung
Daniel Ji Yong Park Chung 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).
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Patent number: 10931573Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: GrantFiled: May 2, 2016Date of Patent: February 23, 2021Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Sathish Kumar Gnanasekaran, Badrinath Kollu, Richard L. Hammons, Ramkumar Vadivelu, Dan Norbert Retter, Jianqiang Zhou, Ponpandiaraj Rajarathinam, Daniel Ji Yong Park Chung
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Publication number: 20160359737Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: ApplicationFiled: May 2, 2016Publication date: December 8, 2016Inventors: Sathish Kumar Gnanasekaran, Badrinath Kollu, Richard L. Hammons, Ramkumar Vadivelu, Dan Norbert Retter, Jianqiang Zhou, Ponpandiaraj Rajarathinam, Daniel Ji Yong Park Chung
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Patent number: 9270580Abstract: One embodiment of the present invention provides a system that facilitates traffic isolation (TI) in a network. During operation, the system configures a set of switch ports as members of a TI zone. The switch ports are part of an end-to-end path across one or more switch domains between a source and a destination. The switch ports within the TI zone and outside the TI Zone belong to a common storage area network (SAN) zone which compartmentalizes data for security purposes. The system then determines whether a data flow entering a switch domain belongs to the TI zone. The system subsequently forwards the data flow to the next port within the TI zone if the data flow belongs to the TI zone.Type: GrantFiled: August 28, 2009Date of Patent: February 23, 2016Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Vineet M. Abraham, Sathish K. Gnanasekaran, Shashank R. Tadisina, Daniel Ji Yong Park Chung, Raymond Yimin Lai
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Patent number: 9184997Abstract: Subsets of isolated communications networks are selectively merged without merging the entire isolated communications networks, and devices are imported across isolated communications networks without merging the isolated communications networks. The presently disclosed technology provides for improved scalability, performance, and security in logical networks spanning two or more physical communications networks.Type: GrantFiled: July 1, 2014Date of Patent: November 10, 2015Assignee: Brocade Communications Systems, Inc.Inventors: Daniel Ji Yong Park Chung, Hung Quoc Nguyen
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Patent number: 9172590Abstract: The entire FCoE fabric is a single virtual domain, even though there may be multiple FCFs and FDFs. The virtual domain is a different Domain_ID than any of the FCFs. In certain embodiments there are multiple FCFs, of which one is selected as the master or designated FCF. The master FCF performs normal fabric configuration in conjunction with the Fiber Channel fabric. The master FCF assigns the virtual domain FC node IDs and controls development of subdomain IDs. Virtual links are instantiated between the master FCF and other FCFs, between top level FDFs and the FCFs and between the FDFs at each of various levels. FDFs connected to ENodes proxy the master FCF for most FIP operations. FIP FLOGI and FDISC operations are handled by the master FDF, but the FDFs convert the FIP FLOGI requests to VD_FLOGI requests, which include information about the FDF handling the transaction.Type: GrantFiled: April 29, 2011Date of Patent: October 27, 2015Assignee: Brocade Communications Systems, Inc.Inventors: Jesse Brewster Willeke, Daniel Ji Yong Park Chung, David Alan Peterson, Glenn Charles Wenig, Suresh Vobbilisetty, Phanidhar Koganti
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Publication number: 20140313934Abstract: Subsets of isolated communications networks are selectively merged without merging the entire isolated communications networks, and devices are imported across isolated communications networks without merging the isolated communications networks. The presently disclosed technology provides for improved scalability, performance, and security in logical networks spanning two or more physical communications networks.Type: ApplicationFiled: July 1, 2014Publication date: October 23, 2014Inventors: Daniel Ji Yong Park Chung, Hung Quoc Nguyen
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Patent number: 8831013Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: GrantFiled: October 8, 2009Date of Patent: September 9, 2014Assignee: Brocade Communications Systems, Inc.Inventors: Sathish Kumar Gnanasekaran, Chao Zhang, Daniel Ji Yong Park Chung, Subramanian Lakshmanan, Badrinath Kollu
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Patent number: 8817804Abstract: Subsets of isolated communications networks are selectively merged without merging the entire isolated communications networks, and devices are imported across isolated communications networks without merging the isolated communications networks. The presently disclosed technology provides for improved scalability, performance, and security in logical networks spanning two or more physical communications networks.Type: GrantFiled: October 30, 2009Date of Patent: August 26, 2014Assignee: Brocade Communications Systems, Inc.Inventors: Daniel Ji Yong Park Chung, Hung Quoc Nguyen, Badrinath Kollu
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Patent number: 8599864Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: GrantFiled: October 8, 2009Date of Patent: December 3, 2013Assignee: Brocade Communications Systems, Inc.Inventors: Daniel Ji Yong Park Chung, Badrinath Kollu, Sathish Kumar Gnanasekaran
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Patent number: 8532119Abstract: A Fiber 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 Fiber Channel router can be in a fabric, but other ports can be connected to other fabrics. Fiber Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fiber Channel switch devices in the backbone fabric and simplify Fiber 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: GrantFiled: July 30, 2004Date of Patent: September 10, 2013Assignee: Brocade Communications Systems, Inc.Inventors: Robert Norman Snively, Steven L. Wilson, Edward D. McClanahan, Dennis Hideo Makishima, Daniel Ji Yong Park Chung
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Patent number: 8446913Abstract: 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: GrantFiled: March 10, 2011Date of Patent: May 21, 2013Assignee: Brocade Communications Systems, Inc.Inventors: Daniel Ji Yong Park Chung, Dennis Hideo Makishima
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Publication number: 20120106957Abstract: The entire FCoE fabric is a single virtual domain, even though there may be multiple FCFs and FDFs. The virtual domain is a different Domain_ID than any of the FCFs. In certain embodiments there are multiple FCFs, of which one is selected as the master or designated FCF. The master FCF performs normal fabric configuration in conjunction with the Fibre Channel fabric. The master FCF assigns the virtual domain FC node IDs and controls development of subdomain IDs. Virtual links are instantiated between the master FCF and other FCFs, between top level FDFs and the FCFs and between the FDFs at each of various levels. FDFs connected to ENodes proxy the master FCF for most FIP operations. FIP FLOGI and FDISC operations are handled by the master FDF, but the FDFs convert the FIP FLOGI requests to VD_FLOGI requests, which include information about the FDF handling the transaction.Type: ApplicationFiled: April 29, 2011Publication date: May 3, 2012Applicant: Brocade Communications Systems, Inc.Inventors: Jesse Brewster Willeke, Daniel Ji Yong Park Chung, David Alan Peterson, Glenn Charles Wenig, Suresh Vobbilisetty, Phanidhar Koganti
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Patent number: 8059664Abstract: A Fiber 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 Fiber Channel router can be in a fabric, but other ports can be connected to other fabrics. Fiber Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fiber Channel switch devices in the backbone fabric and simplify Fiber 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: GrantFiled: July 30, 2004Date of Patent: November 15, 2011Assignee: Brocade Communications Systems, Inc.Inventors: Steven L. Wilson, Robert Norman Snively, Edward D. McClanahan, Dennis Hideo Makishima, Daniel Ji Yong Park Chung
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Publication number: 20110216778Abstract: 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: ApplicationFiled: March 10, 2011Publication date: September 8, 2011Applicant: Brocade Communications Systems, Inc.Inventors: Daniel Ji Yong Park Chung, Dennis Hideo Makishima
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Publication number: 20110103258Abstract: Subsets of isolated communications networks are selectively merged without merging the entire isolated communications networks, and devices are imported across isolated communications networks without merging the isolated communications networks. The presently disclosed technology provides for improved scalability, performance, and security in logical networks spanning two or more physical communications networks.Type: ApplicationFiled: October 30, 2009Publication date: May 5, 2011Applicant: Brocade Communications Systems, Inc.Inventors: Daniel Ji Yong Park Chung, Hung Quoc Nguyen
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Patent number: 7936769Abstract: 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: GrantFiled: July 30, 2004Date of Patent: May 3, 2011Assignee: Brocade Communications System, Inc.Inventors: Daniel Ji Yong Park Chung, Dennis Hideo Makishima
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Publication number: 20110085557Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: ApplicationFiled: October 8, 2009Publication date: April 14, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Sathish Kumar Gnanasekaran, Badrinath Kollu, Richard L. Hammons, Ramkumar Vadivelu, Dan Norbert Retter, Jianqiang Zhou, Ponpandiaraj Rajarathinam, Daniel Ji Yong Park Chung
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Publication number: 20110085559Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: ApplicationFiled: October 8, 2009Publication date: April 14, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Daniel Ji Yong Park Chung, Badrinath Kollu, Sathish Kumar Gnanasekaran
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Publication number: 20110085558Abstract: A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.Type: ApplicationFiled: October 8, 2009Publication date: April 14, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Sathish Kumar Gnanasekaran, Chao Zhang, Daniel Ji Yong Park Chung, Subramanian Lakshmanan, Badrinath Kollu
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Publication number: 20090073992Abstract: 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: ApplicationFiled: November 17, 2008Publication date: March 19, 2009Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: DENNIS HIDEO MAKISHIMA, Daniel Ji Yong Park Chung