Patents by Inventor Dilip Chatwani
Dilip Chatwani 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: 10673703Abstract: One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a Ethernet fabric.Type: GrantFiled: May 2, 2011Date of Patent: June 2, 2020Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Suresh Vobbilisetty, Dilip Chatwani
-
Patent number: 9806906Abstract: Methods and techniques for flooding packets on a per-virtual-network basis are described. Some embodiments provide a method (e.g., a switch) which determines an internal virtual network identifier based on one or more fields in a packet's header. Next, the method performs a forwarding lookup operation based on the internal virtual network identifier. If the forwarding lookup operation succeeds, the method can process and forward the packet accordingly. However, if the forwarding lookup operation fails, the method can determine a set of egress ports based on the internal virtual network identifier. Next, for each egress port in the set of egress ports, the method can flood the packet if a virtual network identifier in the packet's header is associated with the egress port. Flooding packets on a per-virtual-network basis can substantially reduce the amount of resources required to flood the packet when a forwarding lookup operation fails.Type: GrantFiled: March 9, 2011Date of Patent: October 31, 2017Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Shunjia Yu, Anoop Ghanwani, Phanidhar Koganti, Dilip Chatwani
-
Publication number: 20170155599Abstract: One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a virtual cluster switch.Type: ApplicationFiled: May 3, 2011Publication date: June 1, 2017Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Suresh Vobbilisetty, Dilip Chatwani, Shiv Haris, Phanidhar Koganti, Vidyasagara R. Guntaka, Jesse B. Willeke, Senthilkumar Narayanasamy
-
Patent number: 9628336Abstract: One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a virtual cluster switch.Type: GrantFiled: February 11, 2014Date of Patent: April 18, 2017Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Suresh Vobbilisetty, Dilip Chatwani
-
Patent number: 9608833Abstract: Systems and techniques for supporting multiple multicast trees are described. Some embodiments provide a system that determines an internal multicast group identifier based on a source address, a multicast address, and a multicast tree identifier field associated with a multicast packet. The system can then forward the multicast packet based on the internal multicast group identifier. Specifically, the system can determine a first set of bits based on the source address and the multicast address of the multicast packet. The system can determine a second set of bits based on the multicast tree identifier field of the multicast packet. Next, the system can combine the first set of bits and the second set of bits to obtain the internal multicast group identifier. In some embodiments, the scope of an internal virtual network identifier does not extend beyond a switch or a forwarding module within a switch.Type: GrantFiled: February 18, 2011Date of Patent: March 28, 2017Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Shunjia Yu, Nagarajan Venkatesan, Anoop Ghanwani, Phanidhar Koganti, Mythilikanth Raman, Rajiv Krishnamurthy, Dilip Chatwani
-
Patent number: 9461840Abstract: One embodiment of the present invention provides a switch system. The switch includes a port profile which specifies a set of port configuration information. During operation, a control mechanism within the switch detects a source MAC address of an incoming frame and determines that the MAC address is associated with the port profile. The control mechanism then applies the port profile to a switch port on which the frame is received.Type: GrantFiled: March 7, 2011Date of Patent: October 4, 2016Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Dilip Chatwani, Suresh Vobbilisetty, Phanidhar Koganti
-
Patent number: 9455935Abstract: A switch that facilitates remote port mirroring is described. The switch can include an encapsulation mechanism and a forwarding mechanism. The encapsulation mechanism can be configured to encapsulate a copy of a first packet in a second packet, thereby preserving header information (e.g., a VLAN identifier and/or a TRILL header) of the first packet. The forwarding mechanism can be configured to forward the first packet using header information of the first packet, and forward the second packet using header information of the second packet. The second packet can be received at a destination switch which extracts the first packet from the second packet, and sends the first packet on a port which is coupled to a network analyzer.Type: GrantFiled: January 19, 2016Date of Patent: September 27, 2016Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Shunjia Yu, Phanidhar Koganti, John Michael Terry, Dilip Chatwani
-
Publication number: 20160134563Abstract: A switch that facilitates remote port mirroring is described. The switch can include an encapsulation mechanism and a forwarding mechanism. The encapsulation mechanism can be configured to encapsulate a copy of a first packet in a second packet, thereby preserving header information (e.g., a VLAN identifier and/or a TRILL header) of the first packet. The forwarding mechanism can be configured to forward the first packet using header information of the first packet, and forward the second packet using header information of the second packet. The second packet can be received at a destination switch which extracts the first packet from the second packet, and sends the first packet on a port which is coupled to a network analyzer.Type: ApplicationFiled: January 19, 2016Publication date: May 12, 2016Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Shunjia Yu, Phanidhar Koganti, John Michael Terry, Dilip Chatwani
-
Patent number: 9246703Abstract: A switch that facilitates remote port mirroring is described. The switch can include an encapsulation mechanism and a forwarding mechanism. The encapsulation mechanism can be configured to encapsulate a copy of a first packet in a second packet, thereby preserving header information (e.g., a VLAN identifier and/or a TRILL header) of the first packet. The forwarding mechanism can be configured to forward the first packet using header information of the first packet, and forward the second packet using header information of the second packet. The second packet can be received at a destination switch which extracts the first packet from the second packet, and sends the first packet on a port which is coupled to a network analyzer.Type: GrantFiled: March 9, 2011Date of Patent: January 26, 2016Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Shunjia Yu, Phanidhar Koganti, John Michael Terry, Dilip Chatwani
-
Patent number: 9231890Abstract: One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a traffic management mechanism and a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a virtual cluster switch.Type: GrantFiled: April 22, 2011Date of Patent: January 5, 2016Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Suresh Vobbilisetty, Phanidhar Koganti, Dilip Chatwani
-
Patent number: 8867552Abstract: One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a virtual cluster switch.Type: GrantFiled: April 14, 2011Date of Patent: October 21, 2014Assignee: Brocade Communications Systems, Inc.Inventors: Suresh Vobbilisetty, Dilip Chatwani
-
Publication number: 20140160988Abstract: One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a virtual cluster switch.Type: ApplicationFiled: February 11, 2014Publication date: June 12, 2014Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Suresh Vobbilisetty, Dilip Chatwani
-
Publication number: 20110299391Abstract: One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a traffic management mechanism and a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a virtual cluster switch.Type: ApplicationFiled: April 22, 2011Publication date: December 8, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Suresh Vobbilisetty, Phanidhar Koganti, Dilip Chatwani
-
Publication number: 20110299527Abstract: Systems and techniques for supporting multiple multicast trees are described. Some embodiments provide a system that determines an internal multicast group identifier based on a source address, a multicast address, and a multicast tree identifier field associated with a multicast packet. The system can then forward the multicast packet based on the internal multicast group identifier. Specifically, the system can determine a first set of bits based on the source address and the multicast address of the multicast packet. The system can determine a second set of bits based on the multicast tree identifier field of the multicast packet. Next, the system can combine the first set of bits and the second set of bits to obtain the internal multicast group identifier. In some embodiments, the scope of an internal virtual network identifier does not extend beyond a switch or a forwarding module within a switch.Type: ApplicationFiled: February 18, 2011Publication date: December 8, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Shunjia Yu, Nagarajan Venkatesan, Anoop Ghanwani, Phanidhar Koganti, Mythilikanth Raman, Rajiv Krishnamurthy, Dilip Chatwani
-
Publication number: 20110299413Abstract: One embodiment of the present invention provides a switch system. The switch includes a port profile which specifies a set of port configuration information. During operation, a control mechanism within the switch detects a source MAC address of an incoming frame and determines that the MAC address is associated with the port profile. The control mechanism then applies the port profile to a switch port on which the frame is received.Type: ApplicationFiled: March 7, 2011Publication date: December 8, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Dilip Chatwani, Suresh Vobbilisetty, Phanidhar Koganti
-
Publication number: 20110299532Abstract: A switch that facilitates remote port mirroring is described. The switch can include an encapsulation mechanism and a forwarding mechanism. The encapsulation mechanism can be configured to encapsulate a copy of a first packet in a second packet, thereby preserving header information (e.g., a VLAN identifier and/or a TRILL header) of the first packet. The forwarding mechanism can be configured to forward the first packet using header information of the first packet, and forward the second packet using header information of the second packet. The second packet can be received at a destination switch which extracts the first packet from the second packet, and sends the first packet on a port which is coupled to a network analyzer.Type: ApplicationFiled: March 9, 2011Publication date: December 8, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Shunjia Yu, Phanidhar Koganti, John Michael Terry, Dilip Chatwani
-
Publication number: 20110299531Abstract: Methods and techniques for flooding packets on a per-virtual-network basis are described. Some embodiments provide a method (e.g., a switch) which determines an internal virtual network identifier based on one or more fields in a packet's header. Next, the method performs a forwarding lookup operation based on the internal virtual network identifier. If the forwarding lookup operation succeeds, the method can process and forward the packet accordingly. However, if the forwarding lookup operation fails, the method can determine a set of egress ports based on the internal virtual network identifier. Next, for each egress port in the set of egress ports, the method can flood the packet if a virtual network identifier in the packet's header is associated with the egress port. Flooding packets on a per-virtual-network basis can substantially reduce the amount of resources required to flood the packet when a forwarding lookup operation fails.Type: ApplicationFiled: March 9, 2011Publication date: December 8, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Shunjia Yu, Anoop Ghanwani, Phanidhar Koganti, Dilip Chatwani
-
Publication number: 20110268125Abstract: One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a virtual cluster switch.Type: ApplicationFiled: April 14, 2011Publication date: November 3, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Suresh Vobbilisetty, Dilip Chatwani
-
Publication number: 20110268120Abstract: One embodiment of the present invention provides a switch system. The switch includes one or more ports on the switch configured to transmit packets encapsulated based on a first protocol. The switch further includes a control mechanism. During operation, the control mechanism forms a logical switch based on a second protocol, receives an automatically assigned identifier for the logical switch without requiring manual configuration of the identifier, and joins a Ethernet fabric.Type: ApplicationFiled: May 2, 2011Publication date: November 3, 2011Applicant: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventors: Suresh Vobbilisetty, Dilip Chatwani
-
Patent number: 5729685Abstract: An asynchronous transfer mode (ATM) network or the like employing a method and apparatus for automatically determining the topology of the network is described. The method and apparatus provides for each switch in the network transmitting on each of its ports link advertisement messages (without processing intervention by intermediate switches). The link advertisement messages are received by neighbor switches and forwarded to a topology manager. The topology manager constructs network topology profile information based on received link advertisement messages. Further, the topology manager is able to verify bidirection links based on the received link advertisement messages.Type: GrantFiled: September 13, 1996Date of Patent: March 17, 1998Assignee: Bay Networks, Inc.Inventors: Dilip Chatwani, Rajan Subramanian, Winnis Chiang, Jonathan Davar, Ayal Opher, Shiva Sawant