Patents by Inventor Vincent Magret
Vincent Magret 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: 8098571Abstract: A stack switch for performing pass-through forwarding operations, assigning stack switch identifiers to a plurality of stack switches, temporarily disabling supervision messages exchanged by stack switches, and electing a primary master stack switch is disclosed. In the pass-through mode, the stack switch automatically forwards packets between stack ports independent of their destination address to maintain connectivity between adjacent stack switches while conventional bridging and routing operations are disabled. The sequential identifiers are also preferably assigned in accordance with the sequential position of the various stack switches to better reflect the topology of those switches. The switch is also preferably adapted to temporarily disable the transmission of supervision messages between stack switches to prevent re-assignment of network management functions when switch resources are low.Type: GrantFiled: December 29, 2004Date of Patent: January 17, 2012Assignee: Alcatel LucentInventors: Ignatius Santoso, Roberto Henrique Jacob da Silva, Timothy Hicks, Vincent Magret
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Patent number: 7969966Abstract: System and method for implementing a port mapping technique in a switch of a communications network, wherein the switch includes a plurality of ports including user ports and network ports, are described. In one embodiment, the method comprises identifying a first portion of the ports as user ports; identifying a second portion of the ports as network ports; assigning a plurality of the user ports to a first session; and preventing user ports assigned to the first session from interacting with one another.Type: GrantFiled: December 19, 2005Date of Patent: June 28, 2011Assignee: Alcatel LucentInventors: Subash Bohra, Vincent Magret, Steve Valentine
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Patent number: 7881230Abstract: A switch discovers active neighboring peer devices of a switch. Such discovery includes facilitating communication of Link Aggregation Control Protocol Data Units (LACPDUs) for identifying a unique peer identifier assigned to each one of the neighboring peer devices. In response to discovering the active neighboring peer devices, the switch automatically assigning a link aggregation key to each one of a plurality of physical links over which the switch and one of the active neighboring peer devices communicate respective ones of the LACPDUs. Thereafter, the switch facilitates logically aggregation all of the physical links dependent upon the link aggregation key.Type: GrantFiled: October 29, 2007Date of Patent: February 1, 2011Assignee: Alcatel LucentInventors: Anand Vinayagam, Vincent Magret
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Patent number: 7872993Abstract: Embodiments of the invention provide a method for building a classification tree based on a plurality of rules. Each rule includes multiple fields having different priority levels. The classification tree is built to provide for single pass classification of a received packet according to the multiple rules. The classification tree is built level-by-level, where each level represents one of the priority levels. Building a single level of the classification tree includes: creating, for each of the logical decision paths received from a next higher priority level, a respective sub-tree. The sub-tree includes only nodes and related logical decision paths that are necessary to satisfy rules associated with a respective next higher priority level node. Building of the single level further includes: creating, for each non-lowest priority level, logical decision paths from nodes within the current priority level to a next lower priority level.Type: GrantFiled: October 30, 2008Date of Patent: January 18, 2011Assignee: Alcatel LucentInventors: Kevin R. Bailey, Prashant R. Rao, Vincent Magret, Chiang Yeh
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Publication number: 20100110936Abstract: Embodiments of the invention provide a method for building a classification tree based on a plurality of rules. Each rule includes multiple fields having different priority levels. The classification tree is built to provide for single pass classification of a received packet according to the multiple rules. The classification tree is built level-by-level, where each level represents one of the priority levels. Building a single level of the classification tree includes: creating, for each of the logical decision paths received from a next higher priority level, a respective sub-tree. The sub-tree includes only nodes and related logical decision paths that are necessary to satisfy rules associated with a respective next higher priority level node. Building of the single level further includes: creating, for each non-lowest priority level, logical decision paths from nodes within the current priority level to a next lower priority level.Type: ApplicationFiled: October 30, 2008Publication date: May 6, 2010Inventors: Kevin R. Bailey, Prashant R. Rao, Vincent Magret, Chiang Yeh
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Patent number: 7707312Abstract: A protocol for discovering a silent device, such as a printer, attached to a mobile port of a switching node. A command is transmitted to the switching node for associating an IP address for the silent device to a particular virtual local area network (VLAN). Entry of the command causes the switching node to start searching for the silent device on the mobile ports. As part of the searching process, an ARP request with the IP address provided in the command is sent to each mobile port of the switching node. When the silent device responds with its MAC address in an ARP reply message, the MAC address is learned in a layer 2 table used for making forwarding decisions of data units received by the switching node. Furthermore, the port where the silent device was discovered, that is, the port receiving the ARP reply message, is associated with the VLAN of the silent device.Type: GrantFiled: December 31, 2003Date of Patent: April 27, 2010Assignee: Alcatel LucentInventors: Laurence Rose, Vincent Magret
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Patent number: 7672227Abstract: A stackable Ethernet switch system (SESS) includes a number of stack switch elements in which loops are prevented. In one embodiment, logic is provided for monitoring control management traffic on a stacking port of a stack switch element of the SESS. Also included is logic, operable responsive to determining that there is a loss of control management traffic on a stacking port of a particular switch element of the SESS, for disabling user traffic data on that stacking port while keeping the control management traffic path open. The user data traffic on that stacking port of the particular switch element may be enabled upon detecting that the control management traffic on that stacking port has resumed.Type: GrantFiled: June 13, 2006Date of Patent: March 2, 2010Assignee: Alcatel LucentInventors: Ignatius D. Santoso, Vincent Magret
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Patent number: 7630299Abstract: The present invention features embodiments of alleviating the impact to a system of stack switches, as well as to neighboring nodes communicating with such a system, when a primary master switch to secondary master switch failover occurs. The features of the present invention, generally enables a system of stack switches to retain, for a fixed or indefinite period of time, its stack address even when multiple primary master to secondary master failovers occur. This way recalculation of certain protocols—e.g., spanning trees and link aggregations—and updating of certain tables—e.g., address resolution protocol (ARP) and routing tables—are minimized.Type: GrantFiled: December 30, 2004Date of Patent: December 8, 2009Assignee: Alcatel LucentInventors: Vincent Magret, Laurence Rose
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Publication number: 20090180471Abstract: System and method for implementing a port mapping technique in a switch of a communications network, wherein the switch includes a plurality of ports including user ports and network ports, are described. In one embodiment, the method comprises identifying a first portion of the ports as user ports; identifying a second portion of the ports as network ports; assigning a plurality of the user ports to a first session; and preventing user ports assigned to the first session from interacting with one another.Type: ApplicationFiled: December 19, 2005Publication date: July 16, 2009Inventors: Subash Bohra, Vincent Magret, Steve Valentine
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Publication number: 20090109998Abstract: A switch discovers active neighboring peer devices of a switch. Such discovery includes facilitating communication of Link Aggregation Control Protocol Data Units (LACPDUs) for identifying a unique peer identifier assigned to each one of the neighboring peer devices. In response to discovering the active neighboring peer devices, the switch automatically assigning a link aggregation key to each one of a plurality of physical links over which the switch and one of the active neighboring peer devices communicate respective ones of the LACPDUs. Thereafter, the switch facilitates logically aggregation all of the physical links dependent upon the link aggregation key.Type: ApplicationFiled: October 29, 2007Publication date: April 30, 2009Inventors: Anand Vinayagam, Vincent Magret
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Patent number: 7505403Abstract: A stack switch for performing pass-through forwarding operations, assigning stack switch identifiers to a plurality of stack switches, temporarily disabling supervision messages exchanged by stack switches, and electing a primary master stack switch is disclosed. In the pass-through mode, the stack switch automatically forwards packets between stack ports independent of their destination address to maintain connectivity between adjacent stack switches while conventional bridging and routing operations are disabled. The sequential identifiers are also preferably assigned in accordance with the sequential position of the various stack switches to better reflect the topology of those switches. The switch is also preferably adapted to temporarily disable the transmission of supervision messages between stack switches to prevent re-assignment of network management functions when switch resources are low.Type: GrantFiled: December 29, 2004Date of Patent: March 17, 2009Assignee: Alcatel LucentInventors: Ignatius Santoso, Roberto Henrique Jacob da Silva, Timothy Hicks, Vincent Magret
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Patent number: 7483383Abstract: A stack switch for performing pass-through forwarding operations, assigning stack switch identifiers to a plurality of stack switches, temporarily disabling supervision messages exchanged by stack switches, and electing a primary master stack switch is disclosed. In the pass-through mode, the stack switch automatically forwards packets between stack ports independent of their destination address to maintain connectivity between adjacent stack switches while conventional bridging and routing operations are disabled. The sequential identifiers are also preferably assigned in accordance with the sequential position of the various stack switches to better reflect the topology of those switches. The switch is also preferably adapted to temporarily disable the transmission of supervision messages between stack switches to prevent re-assignment of network management functions when switch resources are low.Type: GrantFiled: December 29, 2004Date of Patent: January 27, 2009Assignee: Alcatel LucentInventors: Ignatius Santoso, Roberto Henrique Jacob da Silva, Timothy Hicks, Vincent Magret
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Patent number: 7339928Abstract: A micro-mobility network routing system and method implementing a protocol that extends the macro mobility support of Mobile IP to support micro mobility is disclosed which permits a more efficient and easily implemented Internet routing protocol for network devices to be affected. The macro mobility feature herein refers to the notion in which the mobile node gains access to the Internet, while retaining the same IP address. This concept is used only once when the mobile node enters the coverage area of a foreign domain (eventually its home domain). The concept of micro mobility within this context eases routing packets to the mobile node while its moves within the foreign network. The present invention implements these new features via the use of message compositions and protocol extensions that extend the prior art Mobile IP protocols.Type: GrantFiled: February 4, 2002Date of Patent: March 4, 2008Assignee: Alcatel LucentInventors: Vinod Kumar Choyi, Behcet Sarikaya, Vincent Magret
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Publication number: 20070081463Abstract: A system and method for negotiating speed of a stack link disposed between a stack port of a first stack switch element (SSE) and a stack port of a second SSE, wherein the first and second SSEs are immediate neighbors in a stackable Ethernet switch (SES). In one embodiment, appropriate logic and/or processing structures are provided with respective SSEs for automatically negotiating the stack link's speed during initialization of the SES, whereby the stack link's speed may be increased to a select bandwidth rate greater than a default rate upon determining that the stack ports of the first and second SSE are capable of supporting the select bandwidth rate.Type: ApplicationFiled: September 8, 2006Publication date: April 12, 2007Inventors: Subash Bohra, Vincent Magret
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Publication number: 20070014234Abstract: A loop prevention system and method operable in a stackable Ethernet switch system (SESS). In one embodiment, logic is provided for monitoring control management traffic on a stacking port of a stack switch element of the SESS. Also included is logic, operable responsive to determining that there is a loss of control management traffic on a stacking port of a particular switch element of the SESS, for disabling user traffic data on that stacking port while keeping the control management traffic path open.Type: ApplicationFiled: June 13, 2006Publication date: January 18, 2007Inventors: Ignatius Santoso, Vincent Magret
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Publication number: 20060146697Abstract: The present invention features embodiments of alleviating the impact to a system of stack switches, as well as to neighboring nodes communicating with such a system, when a primary master switch to secondary master switch failover occurs. The features of the present invention, generally enables a system of stack switches to retain, for a fixed or indefinite period of time, its stack address even when multiple primary master to secondary master failovers occur. This way recalculation of certain protocols—e.g., spanning trees and link aggregations—and updating of certain tables—e.g., address resolution protocol (ARP) and routing tables—are minimized.Type: ApplicationFiled: December 30, 2004Publication date: July 6, 2006Inventors: Vincent Magret, Laurence Rose
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Publication number: 20060092849Abstract: A stack switch for performing pass-through forwarding operations, assigning stack switch identifiers to a plurality of stack switches, temporarily disabling supervision messages exchanged by stack switches, and electing a primary master stack switch is disclosed. In the pass-through mode, the stack switch automatically forwards packets between stack ports independent of their destination address to maintain connectivity between adjacent stack switches while conventional bridging and routing operations are disabled. The sequential identifiers are also preferably assigned in accordance with the sequential position of the various stack switches to better reflect the topology of those switches. The switch is also preferably adapted to temporarily disable the transmission of supervision messages between stack switches to prevent re-assignment of network management functions when switch resources are low.Type: ApplicationFiled: December 29, 2004Publication date: May 4, 2006Inventors: Ignatius Santoso, Roberto Jacob da Silva, Timothy Hicks, Vincent Magret
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Publication number: 20060092853Abstract: A stack switch for performing pass-through forwarding operations, assigning stack switch identifiers to a plurality of stack switches, temporarily disabling supervision messages exchanged by stack switches, and electing a primary master stack switch is disclosed. In the pass-through mode, the stack switch automatically forwards packets between stack ports independent of their destination address to maintain connectivity between adjacent stack switches while conventional bridging and routing operations are disabled. The sequential identifiers are also preferably assigned in accordance with the sequential position of the various stack switches to better reflect the topology of those switches. The switch is also preferably adapted to temporarily disable the transmission of supervision messages between stack switches to prevent re-assignment of network management functions when switch resources are low.Type: ApplicationFiled: December 29, 2004Publication date: May 4, 2006Inventors: Ignatius Santoso, Roberto da Silva, Timothy Hicks, Vincent Magret
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Publication number: 20060092832Abstract: A stack switch for performing pass-through forwarding operations, assigning stack switch identifiers to a plurality of stack switches, temporarily disabling supervision messages exchanged by stack switches, and electing a primary master stack switch is disclosed. In the pass-through mode, the stack switch automatically forwards packets between stack ports independent of their destination address to maintain connectivity between adjacent stack switches while conventional bridging and routing operations are disabled. The sequential identifiers are also preferably assigned in accordance with the sequential position of the various stack switches to better reflect the topology of those switches. The switch is also preferably adapted to temporarily disable the transmission of supervision messages between stack switches to prevent re-assignment of network management functions when switch resources are low.Type: ApplicationFiled: December 29, 2004Publication date: May 4, 2006Inventors: Ignatius Santoso, Roberto da Silva, Timothy Hicks, Vincent Magret
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Patent number: 6988146Abstract: Under Simple Multicast Extension for Mobile IP, when a mobile node arrives at a foreign wireless domain, it listens for an agent advertisement sent by a foreign agent. The foreign agent attaches a network access identifier (NAI) extension to the agent advertisement. The mobile node uses the NAI extension to decide which action to take. If the mobile node determines that it is receiving an agent advertisement message from the same foreign agent it previously was in communication with, no action is required. If the mobile node discovers that it has entered a new foreign domain, it sends a registration request to the foreign agent. If the mobile node identifies that it is still in the same domain but has moved from a previous foreign agent to a new one, it sends a multicast subscription request to the new foreign agent.Type: GrantFiled: October 31, 2000Date of Patent: January 17, 2006Assignee: AlcatelInventors: Vincent Magret, Laurence Rose