Patents by Inventor David J. Ruffen
David J. Ruffen 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: 9800552Abstract: Methods are disclosed for incorporating a security gateway within a wireless mesh network. In one embodiment, the wireless mesh network is a heterogeneous mesh network. In one embodiment, a gateway node, which is part of the wireless mesh network, requests a connection to the core network through a security gateway. The security gateway responds by creating an IPSec tunnel and a GRE tunnel within the IPSec tunnel from itself to the gateway node. Once the gateway node is communicatively coupled to the security gateway via secure tunneling, the gateway node sends a mesh routing protocol to the security gateway.Type: GrantFiled: September 27, 2016Date of Patent: October 24, 2017Assignee: Parallel Wireless, Inc.Inventors: Sumit Garg, Kaitki Agarwal, Rajesh Kumar Mishra, David J. Ruffen
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Publication number: 20170019375Abstract: Methods are disclosed for incorporating a security gateway within a wireless mesh network. In one embodiment, the wireless mesh network is a heterogeneous mesh network. In one embodiment, a gateway node, which is part of the wireless mesh network, requests a connection to the core network through a security gateway. The security gateway responds by creating an IPSec tunnel and a GRE tunnel within the IPSec tunnel from itself to the gateway node. Once the gateway node is communicatively coupled to the security gateway via secure tunneling, the gateway node sends a mesh routing protocol to the security gateway.Type: ApplicationFiled: September 27, 2016Publication date: January 19, 2017Inventors: Sumit Garg, Kaitki Agarwal, Rajesh Kumar Mishra, David J. Ruffen
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Patent number: 9455959Abstract: In this invention we disclose methods for incorporating a security gateway within a wireless mesh network. In one embodiment, the wireless mesh network is a heterogeneous mesh network. In one embodiment, a gateway node, which is part of the wireless mesh network, requests a connection to the core network through a security gateway. The security gateway responds by creating an IPSec tunnel and a GRE tunnel within the IPSec tunnel from itself to the gateway node. Once the gateway node is communicatively coupled to the security gateway via secure tunneling, the gateway node sends a mesh routing protocol to the security gateway.Type: GrantFiled: May 29, 2014Date of Patent: September 27, 2016Assignee: Parallel Wireless, Inc.Inventors: Sumit Garg, Kaitki Agarwal, Rajesh Kumar Mishra, David J. Ruffen
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Patent number: 8462794Abstract: Connection-oriented services for packet switched data communications networks are provided, including distributed MAC and protocol alias addresses discovery. Link state topology exchanges provide each switch with network topology graphs to determine paths from source to destination end systems. Broadcast frames are resolved to unicast frames to reduce broadcast traffic. Policy restrictions may be applied prior to connection setup. Connection management includes source-routed mapping of connections on the desired path. Distributed call rerouting is provided so switches receive topology change notifications and unmap failed link connections. Broadcast/unknown services provide non-resolvable packet restricted flooding. Connection-oriented switching is provided based on source and destination MAC addresses. Resolution of networks outside the switch domain is enabled by listening for network and server route advertisements and maintaining best routes to the networks and servers.Type: GrantFiled: March 23, 2010Date of Patent: June 11, 2013Assignee: Enterasys Networks, Inc.Inventors: Kurt Dobbins, Thomas A. Grant, David J. Ruffen, Laura Kane, Theodore Len, Philip Andlauer, David H. Bahi, Kevin Yohe, Brendan Fee, Chris Oliver, David L. Cullerot, Michael Skubisz
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Patent number: 8023515Abstract: Connection-oriented services for packet switched data communications networks are provided, including distributed MAC and protocol alias addresses discovery. Link state topology exchanges provide each switch with network topology graphs to determine paths from source to destination end systems. Broadcast frames are resolved to unicast frames to reduce broadcast traffic. Policy restrictions may be applied prior to connection setup. Connection management includes source-routed mapping of connections on the desired path. Distributed call rerouting is provided so switches receive topology change notifications and unmap failed link connections. Broadcast/unknown services provide non-resolvable packet restricted flooding. Connection-oriented switching is provided based on source and destination MAC addresses. Resolution of networks outside the switch domain is enabled by listening for network and server route advertisements and maintaining best routes to the networks and servers.Type: GrantFiled: March 23, 2010Date of Patent: September 20, 2011Assignee: Enterasys Networks, Inc.Inventors: Kurt Dobbins, Thomas A. Grant, David J. Ruffen, Laura Kane, Theodore Len, Philip Andlauer, David H. Bahi, Kevin Yohe, Brendan Fee, Chris Oliver, David L. Cullerot, Michael Skubisz
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Patent number: 7990981Abstract: Connection-oriented services for packet switched data communications networks are provided, including distributed MAC and protocol alias addresses discovery. Link state topology exchanges provide each switch with network topology graphs to determine paths from source to destination end systems. Broadcast frames are resolved to unicast frames to reduce broadcast traffic. Policy restrictions may be applied prior to connection setup. Connection management includes source-routed mapping of connections on the desired path. Distributed call rerouting is provided so switches receive topology change notifications and unmap failed link connections. Broadcast/unknown services provide non-resolvable packet restricted flooding. Connection-oriented switching is provided based on source and destination MAC addresses. Resolution of networks outside the switch domain is enabled by listening for network and server route advertisements and maintaining best routes to the networks and servers.Type: GrantFiled: March 23, 2010Date of Patent: August 2, 2011Assignee: Enterasys Networks, Inc.Inventors: Kurt Dobbins, Thomas A. Grant, David J. Ruffen, Laura Kane, Theodore Len, Philip Andlauer, David H. Bahi, Kevin Yohe, Brendan Fee, Chris Oliver, David L. Cullerot, Michael Skubisz
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Publication number: 20100182934Abstract: Method and apparatus providing connection-oriented services for packet switched data communications networks. Directory services include distributed discovery of MAC addresses and protocol alias addresses. Topology services include a link state topology exchange among switches, which provides each switch with a complete topology graph of the network. This enables an access switch receiving a data packet to determine a complete path from a source end system to a destination end system. Another service includes resolution of broadcast frames to unicast frames, in order to reduce the amount of broadcast traffic. Policy restrictions may be applied prior to connection setup. Path determination services enable multiple paths from a source to a destination. Connection management includes source routed mapping of connections on the desired path.Type: ApplicationFiled: March 23, 2010Publication date: July 22, 2010Applicant: ENTERASYS NETWORKS, INC.Inventors: Kurt Dobbins, Thomas A. Grant, David J. Ruffen, Laura Kane, Theodore Len, Philip Andlauer, David H. Bahi, Kevin Yohe, Brendan Fee, Chris Oliver, David L. Cullerot, Michael Skubisz
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Publication number: 20100177778Abstract: Method and apparatus providing connection-oriented services for packet switched data communications networks. Directory services include distributed discovery of MAC addresses and protocol alias addresses. Topology services include a link state topology exchange among switches, which provides each switch with a complete topology graph of the network. This enables an access switch receiving a data packet to determine a complete path from a source end system to a destination end system. Another service includes resolution of broadcast frames to unicast frames, in order to reduce the amount of broadcast traffic. Policy restrictions may be applied prior to connection setup. Path determination services enable multiple paths from a source to a destination. Connection management includes source routed mapping of connections on the desired path.Type: ApplicationFiled: March 23, 2010Publication date: July 15, 2010Applicant: ENTERASYS NETWORKS, INC.Inventors: Kurt Dobbins, Thomas A. Grant, David J. Ruffen, Laura Kane, Theodore Len, Philip Andlauer, David H. Bahi, Kevin Yohe, Brendan Fee, Chris Oliver, David L. Cullerot, Michael Skubisz
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Patent number: 7720076Abstract: Method and apparatus providing connection-oriented services for packet switched data communications networks. Directory services include distributed discovery of MAC addresses and protocol alias addresses. Topology services include a link state topology exchange among switches, which provides each switch with a complete topology graph of the network. This enables an access switch receiving a data packet to determine a complete path from a source end system to a destination end system. Another service includes resolution of broadcast frames to unicast frames, in order to reduce the amount of broadcast traffic. Policy restrictions may be applied prior to connection setup. Path determination services enable multiple paths from a source to a destination. Connection management includes source routed mapping of connections on the desired path.Type: GrantFiled: March 1, 2004Date of Patent: May 18, 2010Assignee: Enterasys, Inc.Inventors: Kurt Dobbins, Thomas A. Grant, David J. Ruffen, Laura Kane, Theodore Len, Philip Andlauer, David H. Bahi, Kevin Yohe, Brendan Fee, Chris Oliver, David L. Cullerot, Michael Skubisz
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Patent number: 7016956Abstract: Tailored application or service may be delivered via a communication device to a number of subscribers in a manner that avoids having to store individual copies of a service profile on the device for each subscriber receiving the application or service. Specifically, a packet is received requesting delivery of the application or service from the subscriber at a communication device. In response, the communication device retrieves a subscriber context, which references policies that describe each of the applications and services available to the subscriber. The application or service requested by the packet is compared with the policies referenced by the subscriber context to identify any matching policies. Subsequently, the requested application or service is delivered to the subscriber via the communication device according to the matching policies as described by a service profile. This service profile is accessible for describing the application or service when requested by other subscribers.Type: GrantFiled: July 31, 2001Date of Patent: March 21, 2006Assignee: Ellacoya Networks, Inc.Inventors: Kurt A. Dobbins, David J. Ruffen, Brett A. Miller, Bruce E. Caram
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Patent number: 5825772Abstract: Method and apparatus providing connection-oriented services for packet switched data communications networks. Directory services include distributed discovery of MAC addresses and protocol alias addresses. Topology services include a link state topology exchange among switches, which provides each switch with a complete topology graph of the network. This enables an access switch receiving a data packet to determine a complete path from a source end system to a destination end system. Another service includes resolution of broadcast frames to unicast frames, in order to reduce the amount of broadcast traffic. Policy restrictions may be applied prior to connection setup. Path determination services enable multiple paths from a source to a destination. Connection management includes source routed mapping of connections on the desired path.Type: GrantFiled: April 2, 1996Date of Patent: October 20, 1998Assignee: Cabletron Systems, Inc.Inventors: Kurt Dobbins, Thomas A. Grant, David J. Ruffen, Laura Kane, Theodore Len, Philip Andlauer, David H. Bahi, Kevin Yohe, Brendan Fee, Chris Oliver, David L. Cullerot, Michael Skubisz