Patents by Inventor Christian Addeo
Christian Addeo 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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Publication number: 20170155576Abstract: It is disclosed a method for controlling the protection switching in a communication network having a ring topology. The method applies when a lockout of protection command is applied at a node, a bidirectional failure occurs on a span connecting the node to an adjacent node, and the lockout of protection command is subsequently removed. The method comprises, at any one of the node and the adjacent node, detecting the failure and, if there is not a further lockout of protection command locally applied at the any one of the node and the adjacent node, sending a request packet carrying a signal fail indication towards the other node.Type: ApplicationFiled: June 23, 2015Publication date: June 1, 2017Applicant: Alcatel LucentInventors: Christian Addeo, Laura Bersani, Alessandra Rossi, Dalin Liu
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Patent number: 9565087Abstract: It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Operation Administration Management packet at the input node; and generating a second OAM packet at the input node. According to the invention, the following steps are further performed: a tandem connection header is inserted into the first OAM packet; both the first OAM packet with the tandem connection header and the second OAM packet are sent towards the output node; and the second OAM packet is identified according to the presence or absence of said tandem connection header.Type: GrantFiled: January 5, 2016Date of Patent: February 7, 2017Assignee: Alcatel LucentInventors: Christian Addeo, Alberto Bellato, Italo Busi, Maarten Vissers
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Publication number: 20160134499Abstract: It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Operation Administration Management packet at the input node; and generating a second OAM packet at the input node. According to the invention, the following steps are further performed: a tandem connection header is inserted into the first OAM packet; both the first OAM packet with the tandem connection header and the second OAM packet are sent towards the output node; and the second OAM packet is identified according to the presence or absence of said tandem connection header.Type: ApplicationFiled: January 5, 2016Publication date: May 12, 2016Inventors: Christian ADDEO, Alberto BELLATO, Italo BUSI, Maarten VISSERS
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Patent number: 9313111Abstract: It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Operation Administration Management packet at the input node; and generating a second OAM packet at the input node. According to the invention, the following steps are further performed: a tandem connection header is inserted into the first OAM packet; both the first OAM packet with the tandem connection header and the second OAM packet are sent towards the output node; and the second OAM packet is identified according to the presence or absence of said tandem connection header.Type: GrantFiled: May 24, 2013Date of Patent: April 12, 2016Assignee: Alcatel LucentInventors: Christian Addeo, Alberto Bellato, Italo Busi, Maarten Vissers
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Patent number: 9172630Abstract: In order to provide a redundancy mechanism in a packet switched provider network, which allows faster recovery from a failure, it is proposed that in case of a failure, a redundancy mechanism is initiated to reroute packet transmission through the provider network via an alternate path and an address withdrawal message is sent to network nodes along the failed path using data plane protocol. A network node receiving the address withdrawal message will flush MAC addresses it had learned before.Type: GrantFiled: April 1, 2010Date of Patent: October 27, 2015Assignee: Alcatel LucentInventors: Italo Busi, Christian Addeo
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Publication number: 20150229550Abstract: It is disclosed a method for checking connectivity of a bidirectional circular path provided in a communication network comprising a number of nodes connected according to a ring topology. The bidirectional circular path comprises two counter-rotating unidirectional circular paths. The nodes are provided with topology information relating to the communication network. One of the nodes generates a connectivity check packet comprising a TTL field, sets its value based on the topology information, transmits the connectivity check packet along one of the two counter-rotating paths and receives it at the opposite side from the same path. In response to the connectivity check packet, the node generates a connectivity check response packet comprising a TTL field, sets its value based on the topology information and transmits the connectivity check response packet along the other counter-rotating path.Type: ApplicationFiled: August 15, 2013Publication date: August 13, 2015Inventors: Christian Addeo, Italo Busi
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Patent number: 8867398Abstract: Proposed is a method of enabling a packet loss measurement in a network. Via a group of user ports data packets containing a same source address and a same destination address are received. A link aggregation of the group of user ports is performed. At a network port, received data packets are transmitted to a far end network edge node. A number of transmitted data packets is determined, and also for each of the user ports a number of data packets lost internally is determined. At the network port, a corrected number of transmitted data packets is indicated to the far end network edge node as the sum of the determined number of transmitted data packets the overall number of data packets lost internally.Type: GrantFiled: August 1, 2011Date of Patent: October 21, 2014Assignee: Alcatel LucentInventors: Christian Addeo, Italo Busi, Gianluca Bobbo
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Publication number: 20130286850Abstract: It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Operation Administration Management packet at the input node; and generating a second OAM packet at the input node. According to the invention, the following steps are further performed: a tandem connection header is inserted into the first OAM packet; both the first OAM packet with the tandem connection header and the second OAM packet are sent towards the output node; and the second OAM packet is identified according to the presence or absence of said tandem connection header.Type: ApplicationFiled: May 24, 2013Publication date: October 31, 2013Inventors: Christian Addeo, Alberto Bellato, Italo Busi, Maarten Vissers
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Publication number: 20130215777Abstract: Proposed is a method of enabling a packet loss measurement in a network. Via a group of user ports data packets containing a same source address and a same destination address are received. A link aggregation of the group of user ports is performed. At a network port, received data packets are transmitted to a far end network edge node. A number of transmitted data packets is determined, and also for each of the user ports a number of data packets lost internally is determined. At the network port, a corrected number of transmitted data packets is indicated to the far end network edge node as the sum of the determined number of transmitted data packets the overall number of data packets lost internally.Type: ApplicationFiled: August 1, 2011Publication date: August 22, 2013Inventors: Christian Addeo, Italo Busi, Gianluca Bobbo
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Patent number: 8462640Abstract: It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Operation Administration Management packet at the input node; and generating a second OAM packet at the input node. According to the invention, the following steps are further performed: a tandem connection header is inserted into the first OAM packet; both the first OAM packet with the tandem connection header and the second OAM packet are sent towards the output node; and the second OAM packet is identified according to the presence or absence of said tandem connection header.Type: GrantFiled: January 12, 2011Date of Patent: June 11, 2013Assignee: Alcatel LucentInventors: Christian Addeo, Alberto Bellato, Italo Busi, Maarten Vissers
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Patent number: 8270300Abstract: A method is described for checking support of a function at network elements of a telecommunication network, like an operation and management function. The telecommunication network includes a source, a destination and intermediate control plane elements interconnected through a signalling protocol for controlling a source, a destination and intermediate network elements respectively for configuration of a connection from the source to the destination network element crossing the intermediate network elements.Type: GrantFiled: May 18, 2006Date of Patent: September 18, 2012Assignee: Alcatel LucentInventors: Christian Addeo, Italo Busi
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Patent number: 8107474Abstract: It is disclosed a method for monitoring traffic in a private VLAN, the traffic bidirectionally propagating across the private VLAN through a sequence of nodes sequentially connected by a primary VLAN and a secondary VLAN, the sequence of nodes comprising a first node and a second node, wherein the method comprises: transmitting a monitoring message from the first node to the second node either along the primary VLAN or the secondary VLAN, according to a first criterion based upon a type of the first node; receiving the monitoring message at the second node; and upon reception of the monitoring message at the second node, transmitting a reply message from the second node to the first node either along the primary VLAN or the secondary VLAN, according to a second criterion based upon a type of the second node and upon a VLAN different from the VLAN from which the monitoring message has been received.Type: GrantFiled: July 31, 2007Date of Patent: January 31, 2012Assignee: Alcatel LucentInventors: Christian Addeo, Vincenzo Sestito, Italo Busi
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Publication number: 20120020206Abstract: In order to provide a redundancy mechanism in a packet switched provider network, which allows faster recovery from a failure, it is proposed that in case of a failure, a redundancy mechanism is initiated to reroute packet transmission through the provider network via an alternate path and an address withdrawal message is sent to network nodes along the failed path using data plane protocol. A network node receiving the address withdrawal message will flush MAC addresses it had learned before.Type: ApplicationFiled: April 1, 2010Publication date: January 26, 2012Inventors: Italo Busi, Christian Addeo
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Publication number: 20110128860Abstract: It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Operation Administration Management packet at the input node; and generating a second OAM packet at the input node. According to the invention, the following steps are further performed: a tandem connection header is inserted into the first OAM packet; both the first OAM packet with the tandem connection header and the second OAM packet are sent towards the output node; and the second OAM packet is identified according to the presence or absence of said tandem connection header.Type: ApplicationFiled: January 12, 2011Publication date: June 2, 2011Inventors: Christian Addeo, Alberto Bellato, Italo Busi, Maarten Vissers
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Patent number: 7903565Abstract: It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Operation Administration Management packet at the input node; and generating a second OAM packet at the input node. According to the invention, the following steps are further performed: a tandem connection header is inserted into the first OAM packet; both the first OAM packet with the tandem connection header and the second OAM packet are sent towards the output node; and the second OAM packet is identified according to the presence or absence of said tandem connection header.Type: GrantFiled: July 10, 2006Date of Patent: March 8, 2011Assignee: AlcatelInventors: Christian Addeo, Alberto Bellato, Italo Busi, Maarten Vissers
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Publication number: 20080031261Abstract: It is disclosed a method for monitoring traffic in a private VLAN, the traffic bidirectionally propagating across the private VLAN through a sequence of nodes sequentially connected by a primary VLAN and a secondary VLAN, the sequence of nodes comprising a first node and a second node, wherein the method comprises: transmitting a monitoring message from the first node to the second node either along the primary VLAN or the secondary VLAN, according to a first criterion based upon a type of the first node; receiving the monitoring message at the second node; and upon reception of the monitoring message at the second node, transmitting a reply message from the second node to the first node either along the primary VLAN or the secondary VLAN, according to a second criterion based upon a type of the second node and upon a VLAN different from the VLAN from which the monitoring message has been received.Type: ApplicationFiled: July 31, 2007Publication date: February 7, 2008Applicant: Alcatel LucentInventors: Christian ADDEO, Vincenzo SESTITO, Italo BUSI
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Publication number: 20070036080Abstract: It is disclosed a method of monitoring, a Multi-Protocol Label Switching network, a tandem connection of a Label Switched Path. The tandem connection to be monitored has an input node and an output node. The method comprises the following steps: receiving a first Operation Administration Management packet at the input node; and generating a second OAM packet at the input node. According to the invention, the following steps are further performed: a tandem connection header is inserted into the first OAM packet; both the first OAM packet with the tandem connection header and the second OAM packet are sent towards the output node; and the second OAM packet is identified according to the presence or absence of said tandem connection header.Type: ApplicationFiled: July 10, 2006Publication date: February 15, 2007Inventors: Christian Addeo, Alberto Bellato, Italo Busi, Maarten Vissers
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Publication number: 20060262728Abstract: A method is described for checking support of a function at network elements of a telecommunication network, like an operation and management function. The telecommunication network includes a source, a destination and intermediate control plane elements interconnected through a signalling protocol for controlling a source, a destination and intermediate network elements respectively for configuration of a connection from the source to the destination network element crossing the intermediate network elements.Type: ApplicationFiled: May 18, 2006Publication date: November 23, 2006Inventors: Christian Addeo, Italo Busi
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Patent number: 6999727Abstract: Herein, it is described a method for implementing a Performance Monitoring function according to data retrieved through FEC (Forward Error Correction), in a telecommunication network, which is based on the correlation of information relating to “corrected” and “uncorrected” blocks deriving from the implementation of the FEC function.Type: GrantFiled: August 16, 2002Date of Patent: February 14, 2006Assignee: AlcatelInventors: Giorgio Cazzaniga, Christian Addeo, Francesco Schiavoni
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Publication number: 20030054770Abstract: Herein, it is described a method for implementing a Performance Monitoring function according to data retrieved through FEC (Forward Error Correction), in a telecommunication network, which is based on the correlation of information relating to “corrected” and “uncorrected” blocks deriving from the implementation of the FEC function.Type: ApplicationFiled: August 16, 2002Publication date: March 20, 2003Inventors: Giorgio Cazzaniga, Christian Addeo, Francesco Schiavoni