Patent application number | Description | Published |
20110149987 | System and Method for Route Data in an Anycast Environment - A method of routing data in a network includes sending an instruction to a router to statically route outbound traffic to a firewall farm having an anycast address, identifying prefixes of endpoints that communicate with router, instructing a firewall router to send a route advertisement to the network announcing that the firewall router is the subsequent best hop for data bound for the endpoints, detecting a change in network condition, and sending another instruction to the router to route outbound traffic to another firewall farm having the anycast address after detecting the change. | 06-23-2011 |
20130315067 | System and Method to Route Data in an Anycast Environment - A method of routing data in a network includes sending an instruction to a router to statically route outbound traffic to a firewall farm having an anycast address, identifying prefixes of endpoints that communicate with router, instructing a firewall router to send a route advertisement to the network announcing that the firewall router is the subsequent best hop for data bound for the endpoints, detecting a change in network condition, and sending another instruction to the router to route outbound traffic to another firewall farm having the anycast address after detecting the change. | 11-28-2013 |
20150092534 | System and Method to Route Data in an Anycast Environment - A method of routing data in a network includes sending an instruction to a router to statically route outbound traffic to a firewall farm having an anycast address, identifying prefixes of endpoints that communicate with router, instructing a firewall router to send a route advertisement to the network announcing that the firewall router is the subsequent best hop for data bound for the endpoints, detecting a change in network condition, and sending another instruction to the router to route outbound traffic to another firewall farm having the anycast address after detecting the change. | 04-02-2015 |
Patent application number | Description | Published |
20090092140 | METHOD AND APPARATUS FOR PROVIDING A HIERARCHICAL STRUCTURE FOR ROUTING - A method and apparatus for providing a hierarchical structure for routing over packet networks are disclosed. The method first receives one or more packets from at least one customer endpoint device with a Customer Edge (CE) functionality, wherein said one or more packets are destined for a destination node. The method locates a route for routing said one or more packets by consulting an interface specific routing table. The method then forwards said one or more packets towards said destination node using said route. | 04-09-2009 |
20100027546 | METHOD AND APPARATUS FOR PROVIDING ROUTING A ROUTING REGISTRY - A method and apparatus for processing a route update in a network are disclosed. For example, the method receives at least one route update from a customer edge (CE) device by a centralized routing registry. The method identifies at least one interface of a provider edge (PE) device associated with the CE device, and forwards the at least one route update to the at least one interface of the provider edge (PE) device. | 02-04-2010 |
20100027549 | METHOD AND APPARATUS FOR PROVIDING VIRTUAL PRIVATE NETWORK IDENTIFIER - A method and apparatus for providing for providing a Virtual Private Network (VPN) identifier on a packet network are disclosed. For example the method configures a provider edge (PE) router and a customer edge (CE) router with a set of link local labels for each virtual private network (VPN), wherein said set of link local labels is used to identify a VPN membership. The method also generates a master virtual route forwarding (VRF) table on the PE router for routes that are allowed into an interface to the CE router. | 02-04-2010 |
20100098072 | System and Method to Route Data in an Anycast Environment - A method of routing data in an anycast environment includes sending an instruction from an intelligent route reflector device to an anycast router associated with an anycast network. The instruction signals the anycast router to statically pin up to an initial service node corresponding to a network service. The initial service node is associated with an anycast address. The method includes identifying prefixes of Internet protocol (IP) addresses of customer endpoints that communicate with the anycast network via the anycast router, and sending a route advertisement to a service node router associated with the initial service node. The route advertisement instructs the service node router to send an advertisement to the anycast network announcing that the service node router is a next best hop for data traffic related to the network service and bound for a customer endpoint having an IP address that includes any of the identified prefixes. | 04-22-2010 |
20100111093 | METHODS AND APPARATUS TO DYNAMICALLY CONTROL CONNECTIVITY WITHIN VIRTUAL PRIVATE NETWORKS - Methods and apparatus to dynamically control connectivity within VPNs are disclosed. A disclosed example route server to control connectivity within a VPN comprises a memory to implement a database, a border gateway protocol (BGP) engine to process BGP advertisements, a network interface to receive a first BGP advertisement, which a first route target (RT) associated with the first PE router, from a first provider edge (PE) router associated with the VPN, and an intra-VPN connectivity controller to, in response to the first BGP advertisement, query the database to determine whether the first PE router is to be communicatively coupled to a second PE router of the VPN and when the first and second PE routers of the VPN are to be communicatively coupled, direct the BGP engine to form a second BGP advertisement that includes a second RT associated with the second PE router based on the first BGP advertisement. | 05-06-2010 |
20110141221 | Video Conference System and Method Using Multicast and Unicast Transmissions - A computer-implemented method includes receiving registration messages at a call control agent device via first unicast transmissions from at least three video conference terminals. The registration messages request set up of a video conference between the at least three video conference terminals. The computer-implemented method includes sending a set up message from the call control agent device to each of the at least three conference terminals via second unicast transmissions. The set up message includes at least an identification of a multicast control group, a send multicast group of each of the at least three conference terminals, and a default receive multicast group. In response to the set up message, one or more of the at least three video conference terminals join the default receive multicast group. | 06-16-2011 |
20120113991 | METHODS AND APPARATUS TO DYNAMICALLY CONTROL CONNECTIVITY WITHIN VIRTUAL PRIVATE NETWORKS - Methods and apparatus to dynamically control connectivity within VPNs are disclosed. A disclosed example route server to control connectivity within a VPN comprises a memory to implement a database, a border gateway protocol (BGP) engine to process BGP advertisements, a network interface to receive a first BGP advertisement, which a first route target (RT) associated with the first PE router, from a first provider edge (PE) router associated with the VPN, and an intra-VPN connectivity controller to, in response to the first BGP advertisement, query the database to determine whether the first PE router is to be communicatively coupled to a second PE router of the VPN and when the first and second PE routers of the VPN are to be communicatively coupled, direct the BGP engine to form a second BGP advertisement that includes a second RT associated with the second PE router based on the first BGP advertisement. | 05-10-2012 |
20130176383 | Video Conference System - A method includes receiving a control message that identifies a first video conference terminal as an active talker. The method includes sending, in response to the control message, outgoing video conference data from the first video conference terminal via a first multicast group to two or more video conference terminals joined to the first multicast group. The method also includes sending a command to join a second multicast group in response to the control message. | 07-11-2013 |
20150078203 | METHODS AND APPARATUS TO DYNAMICALLY CONTROL CONNECTIVITY WITHIN VIRTUAL PRIVATE NETWORKS - Methods and apparatus to dynamically control connectivity within VPNs are disclosed. A disclosed example method includes broadcasting, by a route server, a border gateway protocol advertisement as received at the route server; determining a first provider edge router is to be configured for additional connectivity beyond a connectivity defined in a table associated with the first provider edge router, the additional connectivity including an identification of a second provider edge router to which the first provider edge router is to be communicatively coupled; generating a copy of the received border gateway protocol advertisement; modifying the copy of the received border gateway protocol advertisement to facilitate the additional connectivity; and broadcasting the modified copy of the received border gateway protocol advertisement. | 03-19-2015 |
Patent application number | Description | Published |
20080265446 | SUBMERGED GAS EVAPORATORS AND REACTORS - A submerged gas processor in the form of an evaporator or a submerged gas reactor includes a vessel, a gas delivery tube partially disposed within the vessel to deliver a gas into the vessel and a process fluid inlet that provides a process fluid to the vessel at a rate sufficient to maintain a controlled constant level of fluid within the vessel. A weir is disposed within the vessel adjacent the gas delivery tube to form a first fluid circulation path between a first weir end and a wall of the vessel and a second fluid circulation path between a second weir end and an upper end of the vessel. During operation, gas introduced through the tube mixes with the process fluid and the combined gas and fluid flow at a high rate with a high degree of turbulence along the first and second circulation paths defined around the weir, thereby promoting vigorous mixing and intimate contact between the gas and the process fluid. This turbulent flow develops a significant amount of interfacial surface area between the gas and the process fluid resulting in a reduction of the required residence time of the gas within the process fluid to achieve thermal equilibrium and/or to drive chemical reactions to completion, all of which leads to a more efficient and complete evaporation, chemical reaction, or combined evaporation and chemical reaction process. | 10-30-2008 |
20080272506 | SUBMERGED GAS EVAPORATORS AND REACTORS - A submerged gas processor in the form of an evaporator or a submerged gas reactor includes a vessel, a gas delivery tube partially disposed within the vessel to deliver a gas into the vessel and a process fluid inlet that provides a process fluid to the vessel at a rate sufficient to maintain a controlled constant level of fluid within the vessel. A weir is disposed within the vessel adjacent the gas delivery tube to form a first fluid circulation path between a first weir end and a wall of the vessel and a second fluid circulation path between a second weir end and an upper end of the vessel. During operation, gas introduced through the tube mixes with the process fluid and the combined gas and fluid flow at a high rate with a high degree of turbulence along the first and second circulation paths defined around the weir, thereby promoting vigorous mixing and intimate contact between the gas and the process fluid. This turbulent flow develops a significant amount of interfacial surface area between the gas and the process fluid resulting in a reduction of the required residence time of the gas within the process fluid to achieve thermal equilibrium and/or to drive chemical reactions to completion, all of which leads to a more efficient and complete evaporation, chemical reaction, or combined evaporation and chemical reaction process. | 11-06-2008 |