Patent application number | Description | Published |
20110286453 | METHOD AND SYSTEM FOR REDUCING LATENCY IN A MULTI-CHANNEL MULTICAST STREAMING ENVIRONMENT IN CONTENT-DELIVERY NETWORKS - Methods, systems and apparatus for reducing apparent latency in content-delivery networks are provided. Sources multicast certain ‘preview multicast streams’ to multiple subscribers. These preview multicast streams provide pre-recorded content of multicast streams. When a subscriber switches to a desired multicast stream, pre-recorded content of the desired multicast stream is reconstructed from a preview multicast stream. Thereafter, the pre-recorded content is played during the setup of the new multicast distribution tree to minimize latency. Once the distribution tree is setup, live content of the desired multicast stream is made available to the subscriber. | 11-24-2011 |
20120099538 | SYSTEM AND METHOD FOR PROVISIONING FLOWS IN A MOBILE NETWORK ENVIRONMENT - An example method is provided and includes receiving a request from a mobile node for an Internet protocol (IP) address and establishing a point-to-point (PPP) link for the mobile node. The method also includes provisioning a first tunnel associated with a first communication flow for the mobile node, and provisioning a sub-tunnel with the first tunnel for a second communication flow. The second communication flow is associated with a high priority type of data to be transported on the sub-tunnel. In more specific embodiments, a call admission control (CAC) mechanism is used to establish the sub-tunnel with the first tunnel for the second communication flow. Additionally, an inner label is installed in a header of a packet associated with the second communication flow in order to identify the sub-tunnel. | 04-26-2012 |
20120106507 | SYSTEM AND METHOD FOR MANAGING FLOWS IN A MOBILE NETWORK ENVIRONMENT - An example method is provided and includes establishing a session for a mobile node, and evaluating a plurality of label switched paths (LSPs) in response to the mobile node experiencing a handoff between a source packet data serving node (SPDSN) and a target PDSN (TPDSN). The method can also include provisioning a sub-tunnel with a first tunnel, which is associated with a selected label switched path. The selected label switched path is associated with a high priority type of data having a low latency characteristic. | 05-03-2012 |
20140043971 | SYSTEM AND METHOD FOR PROVISIONING FLOWS IN A MOBILE NETWORK ENVIRONMENT - An example method is provided and includes receiving a request from a mobile node for an Internet protocol (IP) address and establishing a point-to-point (PPP) link for the mobile node. The method also includes provisioning a first tunnel associated with a first communication flow for the mobile node, and provisioning a sub-tunnel with the first tunnel for a second communication flow. The second communication flow is associated with a high priority type of data to be transported on the sub-tunnel. In more specific embodiments, a call admission control (CAC) mechanism is used to establish the sub-tunnel with the first tunnel for the second communication flow. Additionally, an inner label is installed in a header of a packet associated with the second communication flow in order to identify the sub-tunnel. | 02-13-2014 |
20140119203 | USE OF TEST PACKETS BY PACKET SWITCHES IN COMPUTER NETWORKS - A packet switch receives a management packet sent for discovery on a data flow's path through a network. The switch creates a test packet ( | 05-01-2014 |
20140140220 | PACKET SWITCH MODULES FOR COMPUTER NETWORKS WITH EFFICIENT MANAGEMENT OF DATABASES USED IN FORWARDING OF NETWORK TRAFFIC - In a packet switch with databases ( | 05-22-2014 |
20140177447 | System and Methods for Load Placement in Data Centers - A system for operating information handling systems forming a network including a plurality of switches is provided. The system includes an open flow controller coupled to each of the plurality of switches; a plurality of links, each link configured to transmit data packets between two switches from the plurality of switches; wherein: the open flow controller is configured to determine a traffic flow across each of the plurality of links; and each one of the plurality of switches is configured to re-route a data packet when the traffic flow in a link associated to the switch exceeds a threshold. A computer program product including a non-transitory computer readable medium having computer readable and executable code for instructing a processor in a management unit for a plurality of information handling systems as above is also provided. A network managing device coupled to a service provider having resources is also provided. | 06-26-2014 |
20140254423 | SYSTEM AND METHOD FOR IMPROVED ROUTING IN AUTONOMOUS SYSTEMS - A system and method for improved routing in autonomous systems includes identifying one or more first edge routers for an autonomous system, selecting one or more second edge routers from the one or more first edge routers, determining a third edge router, forming a first edge router list including all of the one or more second edge routers except for the third edge router, forming a first reachability message, and transmitting the first reachability message. A first prefix is reachable using the one or more second edge routers. The third edge router is associated with a first path for reaching the first prefix. The third edge router is selected from the one or more second edge routers. The first path is a best path for reaching the first prefix. The reachability message includes the first prefix, information associated with the first path, and the first edge router list. | 09-11-2014 |
20140269250 | SYSTEMS AND METHODS FOR TUNNEL-FREE FAST REROUTING IN INTERNET PROTOCOL NETWORKS - An information handling system is provided. The information handling system includes a first, a second, a third, and a fourth network device. The first network device is coupled to the second network device and to the third network device, while the fourth network device is also coupled to the second and third network devices. At least the fourth network device has a plurality of interfaces and one or more processors in communication with the interfaces and a memory. At least one of the one or more processors is configured to disassociate a network address of the first network device from a first VRF instance and associate the network address of the first network device with a second VRF instance when a network failure associated with the first VRF instance is detected. Methods for rerouting traffic through the information handling system in response to a network event are also disclosed. | 09-18-2014 |
20140269328 | SYSTEMS AND METHODS FOR POINT TO MULTIPOINT COMMUNICATION IN NETWORKS USING HYBRID NETWORK DEVICES - An information handling system is provided. The information handling system includes an ingress network device receiving a multicast stream from a coupled source device and a first and a second egress network device. The first and second egress network devices each receive the multicast stream for coupled destination devices. The information handling system also includes a plurality of intermediate network devices by which the ingress network device is coupled to the first and second egress network devices to form a network and further includes a network controller. The network controller has a topology of the network in a memory and forms a multicast tree based on the topology as well as a link load level and a multicast replication capacity associated with links to the first and second egress network devices and to each of the plurality of intermediate network devices. | 09-18-2014 |
20140269700 | SYSTEMS AND METHODS FOR AN EXTRANET MULTICAST VIRTUAL PRIVATE NETWORK IN A VIRTUAL ROUTING AND FOWARDING BASED CUSTOMER EDGE DEVICE - An information handling system is provided. The information handling system includes a customer edge device coupled to a provider edge device. The customer edge device provides a default virtual routing and forwarding (VRF) instance that receives a multicast stream from the provider edge device. The information handling system also includes a plurality of host devices and a plurality of virtual local area networks (VLANs). Each of the VLANs includes at least one of the host devices and is assigned to a subscribing VRF instance, with each of the subscribing VRF instances subscribing to the default VRF instance in order to receive a copy of the multicast stream from the provider edge device. The single copy of the multicast stream is transmitted over the PE-CE link regardless of the number of subscribing VRFs. | 09-18-2014 |
20140355450 | VXLAN BASED MULTICASTING SYSTEMS HAVING IMPROVED LOAD DISTRIBUTION - A virtual extensible local area network (“VXLAN”) system includes servers having VXLAN tunnel end points (“VTEP”) and virtual machines (“VMs”), multiple routers to transmit network data using bidirectional groups (“BIDIRs”) and rendezvous points (“RPs”), and an associated management and provisioning entity (“MPE”) adapted to arrange BIDIRs dynamically based upon network traffic such that traffic is more evenly distributed across the VXLAN. Some of the routers can be preconfigured as potential RPs, and the MPE can activate and deactivate these routers to and from RP status as needed. The MPE creates and rearranges BIDIRs based upon volume thresholds of traffic being reached in BIDIRs, such as by splitting overloaded BIDIRs. Network traffic can be monitored by VTEPs and RPs. | 12-04-2014 |
20150030024 | SYSTEMS AND METHODS FOR A DATA CENTER ARCHITECTURE FACILITATING LAYER 2 OVER LAYER 3 COMMUNICATION - An information handling system is provided. The information handling system includes a plurality of core devices coupled to each other and to a plurality of distribution devices and a plurality of top-of-rack devices coupled to a plurality of servers and to the distribution devices. The plurality of servers are running hypervisors thereon that each manage a virtual switch and a plurality of virtual machines (VMs). The information handling system further includes a plurality of local network address resolution mediators, with each local network address resolution mediator running on one of the plurality of servers and receiving packets from VMs running thereon, and a global network address resolution mediator running on one of the plurality of core devices. The global network address resolution mediator is in communication with each of the plurality of local network address resolution mediators to collect and distribute packets from the plurality of VMs. | 01-29-2015 |